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HKUST Genesis = 同創, Volume 10, Number 1

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(1)

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Prize-

Wi

nning PhD Candidate Sho

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s the

W

a

y

U …叫…s Cheng Po-wi

perfect exampl巴 ofUST'sideal student. Through sheer hard work, he has succeeded in parlaying his personal academic interest into an MPhil and in due course a PhD, and has now taken irst prize in the Universities category at the First Hong Kong Science and Products Innovation Competition this year. His winning entry is a prototype silicon microdisplay which he developed jointly with Hong Kong electronics firm Varitronix.

This full-color silicon microdisplay is suitable for use in PC monitors and virtual reality displays. The micro display is a marriage of advanced silicon integrated circuit (VLSI) and liquid crystal display (LCD) technologies. The silicon VLSI produces a high resolution active matrix display driver back plane, the electrical video signals from which are converted by the LCD into fine display images. The 0.4-inch diagonal silicon microdisplay prototype can produce a video image equivalent to that of a

bulky 40-inch cathode ray tube (CRT).

As can be seen from the picture (right), the microdisplay is so<micro

that conventional viewing is impractical, and optical enhance-ment must be used to assist the viewer (below right).

The microdisplay has a large number of potential applications where small physical size, low power consumption, and low cost are competitive advantages," said Denn 的“ Devicessuch as pocket pagers, portable VCD/DVD,

camcorders, digital cameras, mobile videophones, and portable electronic games w山 allbe greatly improved by 出isfull color silicon microdisplay technology’,.

Dennis commenced this work in 1994 as his final-year project and has translated the pr

.

oject into MPhil and PhD programs, all at HKUST, with encouragement from his supervisor Dr Ho-Chi Huang.

He beat a large number of competitors and it was not just by luck that he won the first prize in his category;'said Dr Huang. Dennis will be the recipient of a HK$50,000 cash priz巴, andthe University will receive a

HK$100,000 award.

I benefit from my work and the award more than just financially;' added Dennis.

I hope to get a good job after grad間tion, and I want to ensure that that job is closely related to what I have been doing at UST."

.... HKUST image on the microdisplay.

Doing Mo『eWith Less ... 2 NewVPAA . .. ... ... 3

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of Engineering

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Prof Ping Ko (left, center) collect the award. 、‘ Jan 旬,

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- E 叫 「叫 uu t - EU EH EEL - 5 , nUJr 、J H 曳 U VA OEL 們U EE LHU MVJr 、 J mmw tt 巾 U Ij Campus Access ...’...φ... 4

(2)

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88

The continuing

dowηtuγη in

the Hong Kong economy has put businesses

and institutions

in α similar

bind.

Shγir,的1gfunds

means they have to find

ways of keeping up

seγvices

with

fewer γesources.

This month, the UST

Purchasing Office tells us how it is coping

.

Every Penny Counts

p

u叫 O伯C巴 di…叫川…∞

proud of hims巴lfand his team. Toget}1er t}1e}r saved UST $4.4 million over the past academic year. As the central purcha s ing agent for the University, the Purchasing Office is sometimes erroneously seen as only providing documentation services, but Mr Lo says:“Our job is also to help the departments using our services to save money."

He recounts continuous efforts to achieve cost savings. One method is the increased use of term contracts, since one-off purchases are usually more expensive because of high operational and administrative costs. If it can be established that a department needs certain goods and services regularly, he will try to negotiate with the vendor for a cheaper, bulk-buy rate with purchases spread over a fixed period.

The office misses no opportunity to make better deals. Vendors who provide equipment for display, for example, are asked to con-sider the advertising benefit to them that comes from their goods being put on show. This has sometimes led to the pur℃hase price being lowered. At other times, sheer persistence pays off. Mr Lo recalls a time when he was up in the middle of the night bargaining with US contractors by long-distance telephone. He called them every hour. They were so impressed by his efforts that they finally agreed to lower their prices. Other managerial staff in the office do likewise.

He also stresses that, although it is 山1portantto save money, cost effectiveness must be consistent with teaching and research

requirements. For example, he tries to talk to departments wanting to make purchases to see if it is possible to reduce the scope of their requirements without sacr恤cingquality.

He places great emphasis on market research which allows him and his staff to spot low-cost alternatives and pricing trends.

In the current economic climate, a contractor may still be too expensive even if he doesn't raise his price on renewal of contract;’he says.

Notwithstanding the savings it has assisted the University to achieve, the Purchasing Office itself is also under pressure to reduce costs. The aim is to reduce expenditure on salaries over the next three years thr

.

ough staff attrition. He says a three-pronged approach is being pursued. The first is a process review of the work undertaken by the 32-strong staff. A monthly management meeting is held to work out how these duties could be streamlined and how duplica tion and wastage could be avoided.

The second approach is to decentralize non core and non value-added functions. It has been proposed that activities such as the purchase of airline tickets for faculty and staff members should not be undertaken by the Purchasing Office. The various schools and departments should make the booking themselves or directly 的ka travel agent to do it for them.

The third approach, which is in keeping with a technology based economy, is to look to computerization to take over some of the func tions currently carried out manually by staff and so free them to take on other services.

Economy Talk Overflows

2

o n4 叫叫 theCiti

Theater was er司ammed with people sitting or standing in t}1e aisles. Attentive students were busy taking notes, and responded with laughter occasionally. Yet they were not in class. Nor was this an information session on the Outreach Day. This was a special lecture organized by the Public Affairs Office on the economy of Hong Kong. Experts from the Depart-ments of Economics and Finance, Profs K. C. Chan, Leonard Cheng, John Wei and Dr Francis L凶,expressed their views and predictions on the current unemploy-ment situation, financial market developunemploy-ments, the stock market as well as long-term economic growth and the competitiveness of the economy.

I want to know more about the development of our economy in preparation for my entrance 泊tothe job market;'said a third-year student who stayed until the end of the lecture.

(3)

New VPAA Looks to the Future

M. Chang, Professor of Physics and

Q

f""

University's roles in education and in basic research remain the same, there is a growing need for UST to respond to the needs of society, as the institution moves from the exploratory to the consolidating phase.

What I want to see;’said Prof Chang,“is a University contributed to and valued by our society. I want it to be the best in the region in science, engineering and business, and leavened by the humanities and the social sciences. And a first-rate institution, recognized world-wide

:’

a world class scholar of higl 1

I 『1ternationalstanding and reputation, on his appointment as Vice-President for Academic Affairs. In a recent interview, Prof Chang was upbeat about the University's future despite the potential for economic storm clouds to have a dampening effect on some of the University

s work.

You have to look at things positively in life;' said Prof Chang,“a little bit of belt-tightening may help you refocus and reprioritize.

As regards his agenda for the future, Prof Chang said there would be no shortcut in this regard, and that the development of a univer-sity was a continuous process. In terms of the University

s direction and thrust,“There is no change in the fundamental丸”hesaid.

Prof Chang emphasized that, while the

Prof Chang is assisted by Prof Nelson Cue, the new Associate Vice-President for Academic Affairs (Postgraduate Studies & Academic Research) and Professor of Physics.

“I am

delighted to be selected for the position of AVPAA - a chance to work with the best. I hope that my broad and long-time

exposure to academia would help and so would the grass-roots activities in teaching and research I plan to maintain, albeit, at reduced levels

:

said Prof Cue.

HK Economic

Woes

- and How to Get Out

I

t

ding r 川e Lee Wing 羽t … Th

on 20

]

anuary when Dr the Hon Antony Leung, Managin

g

Director and Regional Manager of Chase Manhattan Bank, Executive Councilor, Chairman of the Education Commission, and immediate past chairman of the University Grants Committee, came to UST to deliver his Public Affairs Lecture on what could be described as

the economic hole we are in and how to dig ourselves out of it.

Dr Leung

S prescription for economic recovery and renewed competitiveness included no quick fixes, and recognized that we are witnessing not simply the low point in yet another boom-and-bust cycle, but rather a 'paradigm shift

or basic structural change in our economy. He outlined how certain

可igidities’ includingfixed exchange rates and social welfare (which hinders downward adjustments in wages) are blunting Hong Kong

s competitive advantage, and how, more and mor巴, HongKong will have to compete with China in terms oflabour and brain capital.

However, Dr Leung offered sever叫

practical initiatives which could contribute to the restoration of Hong Kong's competitiveness,

including 出Ereform of educa-tion. One of his prescriptions for students is ELCC:

• Enjoy education to encourage life long learning • Languages promote biliteracy and trilingualism as the norm GENESIS, 3 February 1999

• Creativity - not too much rote learning

• Commitment to society - and to China and the wor她

To attract the world's talent, Dr Leung advocated various changes including:

• Allow the best students from the PRC and elsewhere to come to Hong Kong; then allow them to work four years in Hong Kong after graduation

• Solve all Hong Kong

s lifestyle problems such as pollution • Change the basic attitude to foreigners

Dr Leung concluded that we will know we have been successful when Hong Kong is the natural choice for the wor肘,sleading investors, and the natural focal point for the world

s most talented people.

Professor Vincent Y. S. Shen ( COMP) has been honored at the Fir前 FokYing Tung Prize (China) Ceremony for his work in launching SuperNet, the first licensed Hong Kong Internet service provider, which was initially developed at HKUST. He was presented with the Fok Ying Tung Contribution Award on 28 November 1998 for his dedication and tenacity in developing SuperNet as a commercially viable operation. Its success spurred a new industry in Hong Kong which has since offered many employment opportunities for young professionals in the computer field. The award includes·a certificate and HK$ 500,000 cash award,the major portion of which will be put towards supporting his professional and research activities.

(4)

E遭且也且呈4且且正且呈!ill

4

Campus Calendar

4 Feb

Forum for SU Exco Nominated

Cabinets 12-2 pm LG7 Canteen

9Feb Erhu & Guzheng Recital Ray Wong and Kwok Wai Sze

lpm

Multi-purpose Hall, University Center 10-l!Feb SU Annual Election 10 am-6 pm HKJCAtrium 18 Feb Flag Boat Ichi Ikeda Runsl8 且26Feb HK Jockey Club Atrium

22-26 Feb

HKUST Arts Festival 99

Campus 25 Feb Video Circle 1999

Opening Reception: 5 pm Exposition Hall

Runs 26 Feb 28 Mar

Bamboo Boat Ichilkeda

Opening Reception: 5 pm Exposition Hall Runs 26 Feb-28 Mar

LG7lawn

Screening of French Films 7:30 pm

Lecture Theater E 24 Feb

Payday

Home Affairs

• Gopal K. Basak (MATH) announces the

birth of Siddhartha Basak on 14

December 1998.

Debbie Poon Lai.-Kuen (MATH) announces her marriage to Yue Man Keung on 12 December 1998.

• Queenie Liu Sin Ling (SEPO) announces

the birth of Chow Po Yu on 27 November

1998.

Samuel Kwan Shu Kin (CCST) announces

the birth of Kwan Chi Hang on 10

November 1998.

· Chan Kwong Chau (CCST) announces his marriage to Connie Lai Yuen Kwan on 26 October 1998.

· Sze Kong Hung (BICH) announces the birth of Sze Kin Ning on 17 October 1998. · Yau Shek Chung (CCST) announces the birth of Yau Yiu Lun on 13 October 1998.

JU

M

P Success

B …e脫 practicali

and flair are what contributed to the

success of six undergraduate marketin g

students in a local case competition.

.

At an award presentation ceremony held in

November, the winning team members, Mok Chi Hang, Bonny Cher宅, KathyWong, Evelyn Ngai, Catherine Yu and Willie Heung, all final-year Marketing students, were

praised for their thorough

preparation and bright ideas in the proposal they entered for the Joint University Market Planning (JUMP) Contest.

The JUMP Contest was organized by the business

student associations ofHKUST, the Chinese University and the

University of Hong Kong. Participants from all eight

publicly-funded universities were given one

month to come up with a business develop-ment proposal and an exposition plan for the telecommunications company SUNDAY, who sponsored the contest.

The contest included a series of selection

programs during September through Novem-ber. Two teams from the HKUST Business School made their way to the final list of five. The work of the five finalist teams is being displayed in an exposition roadshow touring the three organizing universities from

Novem-ber 1998 to January 1999.

Undergraduate Programs Director Dr

Patrick Chau, one of the adjudicators of the

contest, was delighted that students had an

opportunity to deal with real business issues.

I was impressed by the performance of the participants. They were so well prepared and brilliant that we had a hard time selecting

the winners. The great thing about the

con-test, though, was that participants were given

the chance to formulate and implement their

strategic plans for a real business entity. No matter what the final result was, they all should have gained invaluable experience from the process;' said Professor Chau.

I think the most important thing that

led to our success was the synergy formed

by the different strengths and skills of our group members;' said Catherine Yu.

The theories that we learned from our courses at UST, especially marketing research and con-sumer behavi肘, helpedus a lot in devising a formal marketing strategy. And, of course, valuable opinion given by some of the

mar-keting professors also helped us a lot in

fine-tuning our ideas!”

User-Friendly Campus for

E

verybody

HKUS

with disabilities and has been wor

}

cing

hard on making the campus as accessible a s

possible to all users and visitors. During the

summer of 1998, the Student Social Service Society, Students' Union and Student Affairs

Office jointly conducted a survey on 由e acces-sibility of campus facilities for wheelchair-bound persons.

As a result of this survey, SAO has published a pamphlet providing information on the most convenient access points for wheelchair-bound students to access various

destinations on campus, ranging from com-puter barns to toilet facilities and from class-room to cafeteria. In addition, hall places have

been offered to wheelchair-bound students

and for those with other disabilities, various facilities have been installed such as large

computer monitors to assist the visually

impaired, and the provision of portable hear

~

ing instruments for the hearing impaired. In UST

s ongoing program of upgrading

facilities for persons with disabilities, the University is applying to the University Grants Council for funds to implement these upgrades. And as a recent example, the access

ramp to LG? (left) has now been made more

easily negotiable.

(5)

網絡精英北京奪銀摸

兩位科大同學代表香港參加在北京舉行的 中國首屆青少年國際互聯網絡知識大 賽 3 技壓群雄,勇奪銀獎 ,金獎則由北京隊獲 得。 獲獎實在有點僥伴。原來想,要是能拿一個倒數 第二已經很不錯了!” 經過一輪激戰,蕭民健眼中的對手,實力如 (可吉他說, “一言以蔽之 強。 內地隊員涉獵極 蕭民經及林瑞品均為計算機工程學三年級 廣 3 本科僅為其一。他們的電腦技術基礎很強, 生 3參賽正值期考,他們都要作一點犧牲一一 有的更自行轉換視窗的運作程式,改進技術系 補考 。蕭民 i連說,"香港隊組隊時間短,沒有 統。唯一弱點為英語。只要提升英語水平,他們 參加過初賽,臨急抱佛腳 ,普通話又不靈光 3 將是很強的競爭對手。” 見賢思齊。 因港後蕭民健除忙 於應付補考外, 也計劃好好裝備自 己 , 迎接挑戰。他準備修讀一些課 堂以外的電腦課程 2 多看電腦雜 誌 ’ 了解電腦技術的最新發展 3 報 考電腦文憑試。 .A. 香港隊由兩男兩女組成,左二起為鍾依薇(中大)、鄧偉明(港 這次大賽由中國多個部門合 辦 3 經多輸角逐後 ,在全國選出六 支優勝隊伍參加在北京中央電棍台 舉行的決賽,香港隊則以特邀身分 直接參加決賽。決賽實況已於 12 月 底在中央台及大賽網站播出 。網址 詛 http://www.ctc.org.cn 。 大)、蕭民健及林瑞晶。

科大點滴

主i三是那些摸一下電腦都生怕弄壞它的人。 ..J~ 喜歡拌嘴,不 3 是喜歡據理力爭的我每 次被人斗膽說不是都會作出適量反駁,除了對 方說我是“電腦白痴”只會在心裡嗚咽外。入了 科大,被迫冒著傷害它和自己銀包的危險“學 學”怎樣用。(說真的,所謂“學”還不是偷雞摸 狗地窺伺鄰桌又或以口頭上的一餐lunch 去欺 闊別人的諱言享教誨一一啊,有點見想懺悔。)幸 好,皇天不負有心人,我懂得用 e-mail ,上 internet 和一些簡單的電腦操作。最令人為之 驕傲的還是有些時候懂得附和別人去取笑那些 連 I

c

Q 是什麼都不懂的人。 (雖然自己有了 ICQ account半年還未玩過。) 現在發覺自己有著女孩子的共通點一一善 變。對電腦由恨變為愛只是短短數月的大學生 ill 。 寧靜的校園內 ,一切都顯得格外的安祥 海拔高處的空氣清新無比 2 蔚藍的天與碧綠的 海相連 ,遠處迷濛的山巒連綿起伏。美境當 前 3 難怪向海的宿舍被爭得頭崩額裂了。小妹 深明自己最愛神遊四方 3 恐怕會整天呆在窗前 日賞浮雲 3夜觀星象,故以學業為重 ,不欲與 世相爭矣。 (唉 , 吃不到的葡萄 ,不說它是 GENESIS, 3 February 1 999 工商管理學院一年級劉秋意 酸的還能做甚?) 友人就讀電子工程學象 3 取笑我這個商學院 的為科大飲食業作出很大的貢獻 canteen, cafe 甚 至酒樓都像無處不在似的。“經濟嗨 ,你不懂的 啦!’,(讀了半個學年的經濟只能在這些時候派上 用場。)總體而言,科大的食物既美︱床又經濟, 小妹十分讚賞。只是不明白偶爾計算一下衣食住 行的花費 嗯,好像食的花費有增無減。為了 肯定這個問題 3 家裡新添了一個磅 3 發覺我的計 算是正確的。 Year 2 的師姐告訴我大學很易讀 3 只要肯讀 便不難拿高分。Mid-term 公佈各科成績,慘不忍 睹。傷心欲絕之時旁邊的同學高聲談論彼此

above 幾多個 standard deviation 。向朋友訴苦, 朋友安慰我道她比我更慘一一“ far far below

mean !”當時的我真是感激涕零,心想自己“far

far below mean!”都不算很慘。後來不記得何故

覺悟到要奮發,在考 final 之前甘作 頭苦幹,不想有愧於那四萬多的學費。 原來這裡是臥虎藏龍之地。呆在井底多時 3 殊不知天高海關。一向在母親面前能雄辯滔滔的 我,上莊面試中的小組討論沒哼半句。全困在座 各位皆能吉善辯之士》討論氣氛熱烈且對答精 區團旦E畫盟國 校凰活動 學生會幹事會候選內閣論壇 2 月 4 日中午至三時 LG7 飯堂 主懷、郭慧詩二胡古箏演奏會 2 月 9 日下午一時 大學中心多功能聽 學生會周年選舉 2 月10 日至 11 日 早上十時至下午六時 香港賽馬會大堂 池回一“泛舟”展覽 展期 2 月 18 日至 26 日 香港賽馬會大堂 科大藝術節的 2 月 22 日至 26 日 校園 錄象圈1999 開幕茶會 2 月 25 日下午五時 展覽廳 展期 2 月 26 日至 3 月 28 日 池田一“竹舟”展覽閉幕茶會 2 月 25 日下午五時 展覽廳 展 )c1jj 2 月 26 日至 3 月 2日日 LG7 草坪 法國電影精選 2 月 2 日晚上t時半 E i高堂 發工資日 2 月 24 日

教職員消息

﹒數學系白高柏的兒子 Siddhartha Basak 於

1998 年12 月 14 日出生。 數學系j番麗娟於 1998 年 12 月 12 日與余文強 結婚。 ﹒ 安全及環保處廖蓓童音於1998 年11 月 27 日誕 下女嬰,取名周諜論。 計算及電訊中心關樹建的女兒關知行於 1998 年11 月10 日出生。 - 計算及電訊中心陳廣就於 1998 年 10 月 26 日 與黎婉君結婚。 - 生物化學系時港洪的女兒時健寧於 1998 年10 月17 日出生。 計算及電訊中心丘石松的兒子丘曜給於 1998 年 10 月13 日出生。 彩 ,也算是參加者的我不斷心中暗暗叫好 ,只差 沒忘形至鼓起掌來。也許因為“太陪”的關係 3 昕 以很“明顯”地被淘汰。事後我卻感到十分高興, 覺得自己沒有入錯學校。 感謝《岡創》給我這次機會,並容忍我的口沫 橫飛。母親教我做人要有禮貌,在此謹以至誠說 句.“多謝! 多謝!拙作!拙作 l 賞面 l 賞面1η

5

(6)

圓圓E珊瑚 “子已眩,(沒有肉閻)一年的學生會幹事會, 二巳今年將有接班人。 今年競選第七屆學生會幹事會的候選內 閣不只一個 ,是兩個 3創下了學生會選舉的 記錄。兩間一名 UNIQUE (獨特) ,一名 CO-ACT (集體行動) 。UNIQUE 以獨特及 創意取勝 , 內閣成員除候任會長衛文}£(財 務學系二年級)夕︱、 3 全為一年級生 , CO­ ACT 即集體行動的意思 , 口號是“沒有你支 持?一切也徒然 l ”

且臨L

~

·

-

1- 1-

-.

_

__

,

_

衛文:$說 . “雖然閣員全為一年級生 3 但他們已積累了在學生會小組委員會工作半 年的經驗。他們沒有歷史包袱3 富創意 ,可 為新一屆學生會帶來朝氣。而且 3 絕大部份 閻員為商學院學生 3 課餘時間較多 ,可以多 花時間處理繁重的會務。” 1篇文E君去年已參與學生會小組委員會的 工作,並曾試圖組閣參選第六屆學生會幹事 會,惜人數不足而作罷 。今年》她終於可以 得償所願,實踐理想。

蕭火車自傳

UNIQUE 認為 ,新一屆學 生會首要急務為加強校內溝 通。他們計劃每月在香港賽馬 會大堂舉辦論壇 , 向同學交待 工作 3邀請校方就不同議題與 同學進行對話。 CO ACT 候任會長趙永康(機械工程學 系二年級)是社三冰川學生會前會長 。他去 年初進科大 2經驗尚淺,未及組悶 。積累了 一年摘課外活動的經驗後 3他說自己思想成 熟了 3 希望可以擴闊層面 , 為全校同學服 務。他說 “CO-ACT 成員來自三個學院 , 有二年級的 ﹔ 也有一年級的同學,更具代表 性 ,處事也更成熟3 了解同學的需要。” 趙永康說,他們不會依循前屆學生會運 作的模式2 一切要‘宜生

學界環保先鋒

品,句:色教育先鋒椎動環保的努力再改獲梅肯定 。

沁?

撞去年

奪首屆環保會規殼大學生環保活動獎

冠軍後 3 最近又獲頒贈最佳環境教育及社區活動獎 。 該項名為199日/ 99 最佳環境教育及社區活動計劃比賽 由環境保護運動委員會舉辦。綠色教育先鋒在中學推廣環 保訊息的活動 3在社區團體及大專學院組別中敬評為最佳計劃。 過去兩年3 由十多位生物學系同學組成的綠色教育先鋒不辭勞苦到全港一百問中小學 , 播放環保幻燈片 ,派發小1肘子, 宣揚環保訊息。是項計劃獲環境及自然保育基金及吳民會 德豐環保基金撥款資助 。今年 3 綠色教育先鋒會再接再厲 , 申請撥款 3 向中小學生推廣循 環再造的訊息 。

6

會營造和平共處, 自由開放的氣 氛 , 重建學生會的形豆豆。 為加強同學與學生會的溝 通 〉提高透明度, CO-ACT建 議成立一條獨立電話專線3讓同 學l惕昕欲吉 ,並承諾於 24小時 內回覆。他們每月將舉行大會 , 向同學交待工作進展 ,共商重大 決策 。 兩閣將出席 2 月 4 月在LG7 飯堂舉行的論壇 ,解釋政綱,接 受質詢。投票將於 2 月 10日及ll 日進行。 :

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Editor Jacky Tsang Writers Frank Davies, Lisa Li Design & Production Timothy Ngan

Photography 〔「ystalLo (SBM, 1)

Genesis is published by the Office of Pul]lie Affai「sto keep members of the UST community in touch with

University news and views. The next issue of Genesis will be published on 3 March 1999. 〔ont『ibutions a『Ewelcome, but

must be 「eceivedat least two weeks befo『E publication date. Email you『 cont『ibutionto genesι

© 1998 by The Hong Kong University of Science and Technology. All 『ightsreserved.

下期﹛同童心將於1999年3月3日出版。

〈伺章。園地公開 a 歡迎投稿。來稿請傳真

2358-0537或交公共事務處《同晶。培育輯l性。

截稿日期 出版前兩遇。

(7)

E噩噩噩週圖

細微世界多驚喜

科大納米材料研究已步入世界前列

主i三們都已知道,當材料尺度變得非常細微時,它會擁有非同尋常 ..J /切的性質和用途。納米材料從單維到三維,不同結構、不同性 船,變化層出不窮 3 成為全世界科學家研究的熱點。 目前,科大有 20 多位物理學家和化學家研究著直徑介於 l 納米 至 1000 納米的微觀材料。 物理學系沈平教授指出 3 在納米 科學的研究中 3 三芳面的工作缺一不 可,利用合成或晶體生長的方法製備 樣品 3分析樣品結構和器件製備, 理 論的詮釋和預測。將各有專長的研究 人員集中在一起 ,有利於多出高水平 的成果。科大與中國科學院共同建立 了納米材料與技術聯合實驗室 3 更令 金屬 ,可望製成高效而縮小的半導體 3 或許還可製備超導體呢!大 量地製成同一類型的納米管相當困難,很多科學家花費了大量人力 和財力而從未取得成功。難怪這一成果在去年美國物理學會的年會 上引起了頂尖級物理學家的注目 。 王克倫敦授和揚子康博士“採用自然順勢的方法 3 來獲得極短坡 的紫外激光光源”的研究也引起各國向行的注目。他們在 實驗中發現 ,六角型純氧化鋒微晶在室溫下可以發射極 短波的紫外線激光 ,並對其機制進行了全面探討。這一 發現令這類材料有可能用來製作高分辨率的激光光源 , 這是世界上第一吹成功的研究。《科學》雜誌( Science) ,

以及激光學科的頂尖雜誌“LaserFocus World’,都報道

了這一研究成果。 科大的納米研究如虎添翼。

I

.._

利用沸石孔道製備的單層”納米 蘇應強副教授突破了傳統製備結圓的光刻腐蝕方 法 ,而採用自然順勢的方法3 即讓晒化鋒層自行積累, 科大的納米研究大致可以分為 ,

I

i皮管’,主橫截面。 納米雜化材料、表面與界面、權合系 統、半導體低維結構等四個主要 1i 面。他們取得的成果 中 ,有的已經在世界頂尖級的科學聯誌上刊登、在世界一 流的科學家中傳播。-ttt高水平的成果已鱷逐漸湧現。 自沈平教授、譚永炎副教授及溫維佳博士等研究的 “電流變流體”早為讀者們所熟知。那種納米智慧流體的發 明 ,不僅開拓了新的研究領域 3 也顯露了在機械傳導、車 輛防震1i 面的應用前景。最近,他們又發現:當同時加上 電場和磁場時,這種“智慧流體”可以形成規則排列的晶 體。這種晶體又被稱為光于晶體,具有非同尋常的光學特 性。它好似諸葛亮昕佈下的八卦悴,激發態的原于被困在 其中 ,發不出光來,外面的光也進不 去。這是世界上首改成功的三維光子晶 體。試回想一下 3 當人們懂得控制電于 以後,給科技及生活帶來的巨大變化。 如果我們可以控制光子 3 由此開拓的研 究嗔域和應用前景將是不可限量的 。 另一項令人興奮的研究是有關納米 碳管的。形象地說, 納米碳管就象是由 ... 沸石晶體,用它製備整齊排列的、具 有同樣尺寸的納米碳管 自然形成可以高效地發射藍光 的納米結圈。蘇應強副教授還 和楊志宇副教授一間製備了多 層的啼硫化錚 3 並用它成功地 製作了世界上第一個名副其實 的紫外光電探測器。這個百分 之百“香港製造”的器件對紫外 光高度敏感,可用來製造紫外 照相機的重要器件。而紫外照 相機在研究天體和監測環境污 染方面有極為重要的用途。比 如,太陽表面發生的爆炸常產 生高速傲粒 3 這些微粒如果撞擊到衛星 3 嚴重時 會將衛星摧毀。如果我們製成了高性能的紫外照 相機3它就可以清晰而快捷地預報太陽的信息, 讓人造衛星能及早採取保護措施。 在科技發展日新月異的今天 3 納米拉術已經 不是遙不可及的夢想。實際上 3 我們每天都已經 在與納米裝置打交道。比如 ,半導體的異質結就 是納米結構3它是我們日常生活少不了的視聽設 平面的石墨卷成的卷。它有大有小 3 有 區立了'/F~:-::血Iii董嘩啦圓圓 備 CD 、 VCD 、 DVD 等的關鍵部件 i 半導體納 不同的旋轉角度、有多層也有單屑。種 ... 常規方法製備的納米碳管,其尺寸不 ,排列呈 米結構也是許多遙距通訊設備的核心部件 , 比如 類不同 3性能就不悶 。因為它在電子器 隨機分佈。 調制器、光纖數據傳導、微波裝置等。 件方面有廣闊的應用前景3即以 3 各國 納米科技令人類改造自然的能力直接延伸到 科學家都致力於它的研究。 分子和原子。它將進一步開發物質潛在的特性 3 令單位體積物質儲 揚于康博士巧妙地利用吉林大學製作的沸石作為載體 ,一吹就 存和處理信息的能力提高百萬倍以上。有人認為 ,納米材料的研究 可以製備幾百萬條同類型的納米碳管。通常 3 自然形成的納米碳管 絲毫不亞於本世紀三、四十年代對核能的開發。納米結構材料不僅 極不穩定 3而被沸石的學向孔洞“握住”的納米管卻相當穩定 2就象 將給科學研究帶來更多激動人心的新領域 ,它的開發和日益廣泛的 糖葫中的精米似的 3 逃無可逃。如果在空穴中加入不同離子或不同 應用也將給社會生活及經濟發展帶來巨大的衛擊。 同創﹒一九九九年二月三日

7

(8)

....

mDIII

從畢業課題到創新產晶

畢業習作( Final Y叭叭也許不過是 街刺前的例行公事》但對電機及電子工程 學系博士生鄭寶榮來說,畢業課題真定他在科大 修讀碩士及博士課程的基礎 ﹔ 引領他走進科研世 界。最叫他欣喜的 3便是他發明的彩色微型液晶 體顯示器原型 3 獲第一屆香港科技及創新產品大 賽冠軍(大學與科技學院組月lj)。 鄭寶榮說. “我想我獲獎是因為我花了四年的 時間進行研究 ,其間解決各式各樣的技術問題 3 改進產品的質量 ,精益求益。這裡的顯示技術研 究中心在設備及人力方面給予我很大的支持。” 技術轉移成功 ,必須具備遠見。他說.“四年 前做這項研究時 3 我已知道微型顯示器將成主 流 3 商品化是我的終點站。每跨前一小步 3看到 點點成果 3 叫我更有信心勇往直前。” 鄭寶榮設計的彩色微型液晶體顯示器小如拇 鄭寶榮的指導老師黃河揖博士說, “寶榮四年前做畢業習作時,已著手研究 彩色微型液晶體顯示掘。之後他在科大修 讀碩士及博士課程 3 繼續深入研究這項課 題 。他力壓那麼多對于 ,贏縛冠軍 3 絕非 僥伴 。” 由於顯示器體積極小 ,必須用放大鏡 來看影象。鄭寶榮正從事光學應用的研 究 3 放大影象 ,將顯示器應用於改良液晶 體投影機及頭盔顯示器。 鄭寶榮的研究的科大與精電集團合作 開發2科大提供研究人才及實驗設備 3與 指指甲 , 可說是當今最微型的彩色液晶體顯示 器。它結合了先進的超大型集成電路晶片及液晶 顯示技術 s 適用於個人計算機監視器及虛擬現實 顯示。它解象度高 3 對角線只有 0.4 吋 3影象割l 能 (左起)鄭寶榮及工學 ’, 院院長高秉強教授獲 大會頒贈支票。 像 40 吋陰極射線管放映的清晰。 鄭寶榮說. “影色微型液晶體顯示器較現時使用的薄晶體管技術 的成本便宜十倍之多。它的優點是體積小 3 耗能低3投入小,效益 大 3 切合香港經濟發展的需要。”它發展為商品的潛力非常優厚 3可 廣泛應用於傳呼機、手提 VCD 及 DVD 機、攝錄機、數碼相機、于 提視像電話及電子遊戲機等。

8

用彩色微型滾晶體顯示器觀看科 大影象。 鄭寶榮說:“我不是關起門 來進行研究。科大與工業界進 行緊密的合作 3 讓我了解工業 實際的運作,不斷改進技術。” 第一屆香港科技及創新產 品大賽由香港科技協進會舉 辦 3 每兩年舉辦一吹。今年三 個組別參賽作品逾一百多件 。 獲獎作品於去年十一月底舉辦 的世界華人發明博覽會中展 出 。鄭寶榮的獎品包括嘉許獎 狀及五萬元獎金 , 大學則獲十 萬元獎金 。 一可

參考文獻

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