[PDF] Top 20 Annealing effect of polymer bulk heterojunction solar cells based on polyfluorene and fullerene blend
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Annealing effect of polymer bulk heterojunction solar cells based on polyfluorene and fullerene blend
... UV–vis and PL emission spectra under various annealing ...increase and red-shift in the UV–vis ...thermal annealing process enables spa- tial rearrangement of the polymer chains ... See full document
7
Efficient bulk heterojunction solar cells based on a low-bandgap polyfluorene copolymers and fullerene derivatives
... curves and EQE of the PV devices fabricated from various ...values of the de- vices fabricated from CF, CB, DCB and TCB are ...4.73 and 5.37 mA/cm 2 , and the FF values are ... See full document
7
Competition between Fullerene Aggregation and Poly(3-hexylthiophene) Crystallization upon Annealing of Bulk Heterojunction Solar Cells
... s of thermal annealing at 150 C, PCBM aggregation size in the P3HT/PCBM composite films grew quickly from 7 to 18 nm then saturated; meanwhile, the majority P3HT lamellae increased from a size of 7 ... See full document
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Distribution of Crystalline Polymer and Fullerene Clusters in Both Horizontal and Vertical Directions of High-Efficiency Bulk Heterojunction Solar Cells
... images of the corresponding PBTC 12 TPD/ThC 61 BM films, ...bright and dark regions in these TEM images represent the conjugated polymer-rich and fullerene-rich domains, respectively, ... See full document
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Improving Device Efficiency of Polymer/Fullerene Bulk Heterojunction Solar Cells Through Enhanced Crystallinity and Reduced Grain Boundaries Induced by Solvent Additives
... value of 9 mA cm − 2 for the PBTTPD/PC 71 BM active layer that had been processed without any solvent ...device based on PBTTPD/PC 71 BM processed with DIH as the solvent addi- tive exhibited the ... See full document
5
Complementary solvent additives tune the orientation of polymer lamellae, reduce the sizes of aggregated fullerene domains, and enhance the performance of bulk heterojunction solar cells
... solvents and solvent ...designing polymer solar ...a blend of donor (D), polymer, and acceptor (A), fullerene, materials that are organized into three phases: a ... See full document
10
Monitoring the 3D Nanostructures of Bulk Heterojunction Polymer Solar Cells Using Confocal Lifetime Imaging
... in polymer-based solar cells have been demonstrated to enhance the ...in polymer chain crystallinity through either thermal or solvent ...After annealing, holes can be ... See full document
5
Applications of functional fullerene materials in polymer solar cells
... the bulk to reach ideal D–A morphology plays an signicant role in the success of various polymer:fullerene ...thermal annealing of a P3HT:PC 61 BM composite drives P3HT to ... See full document
18
Solution-processed benzotrithiophene-based donor molecules for efficient bulk heterojunction solar cells
... BT4OT and BT6OT, for use in solution-processed BHJ solar ...number of octylthiophene units signicantly affected the optical, electrochemical, and photovoltaic properties of BT4OT ... See full document
8
A Strategic Buffer Layer of Polythiophene Enhances the Efficiency of Bulk Heterojunction Solar Cells
... fraction of carriers recombine within the active layer before they can be extracted from the device (11, ...interfaces and continuous pathways for carrier transport, is a critical aspect of ... See full document
5
Synthesis and Characterization of Pyrido[3,4-b]pyrazine-Based Low-Bandgap Copolymers for Bulk Heterojunction Solar Cells
... efficiencies of PSCs we must consider not only the absorption and energy levels of polymers but also the surface morphologies of the polymer ...Samples of the P1-P4:PC 70 BM ... See full document
8
Correlation between Exciton Lifetime Distribution and Morphology of Bulk Heterojunction Films after Solvent Annealing
... deal of research has revealed that efficient OPVs require not only large interfaces for exciton dissociation but also bicontinuous pathways for charge transport to the respective ...in polymer solar ... See full document
8
Controlled Growth of Nanofiber Network Hole Collection Layers with Pore Structure for Polymer-Fullerene Solar Cells
... the blend at 600 rpm for 60 ...annealed on the top of hotplate at 130 ° C. A 30 and 100 nm thick layer of calcium and aluminum, respectively, was thermally evaporated under ... See full document
6
Annealing Effect on Photovoltaic Performance of Hybrid P3HT/In-Situ Grown CdS Nanocrystal Solar Cells
... The bulk heterojunction system still has some difficulty achiev- ing the 10% power conversion efficiency (PCE) required for ...difficulty of controlling the solid-state phase morphology of the ... See full document
6
Surface Plasmonic Effects of Metallic Nanoparticles on the Performance of Polymer Bulk Heterojunction Solar Cells
... film solar cells is critical for their high performance ;especially for those based on organic materials, where the thickness of the active layer is relatively ...PCEs of OPVs by ... See full document
9
Effects of annealing on the polymer solar cells based on CdSe–PVK electron acceptor
... Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung 811, Taiwan, ROC b Department of Chemical and Materials Engineering, Cheng Shiu University, ... See full document
3
Reducing Regioisomers of Fullerene-Bisadducts by Tether-Directed Remote Functionalization: Investigation of Electronically and Sterically Isomeric Effects on Bulk-Heterojunction Solar Cells
... device of S-AMP-CBA showed much lower electron mobility than that of R-AMP-CBA by 4- ...result of the LUMO energy variations are insigni ficant in the AMP-CBA ...geometry of trans-4-III, the ... See full document
9
The dual localized surface plasmonic effects of gold nanodots and gold nanoparticles enhance the performance of bulk heterojunction polymer solar cells
... nm on the P3HT:PC 61 BM films. The absorp- tion peak at 334 nm and 512 nm was contributed to the PC 61 BM and P3HT, ...2.7- and 3.1-nm Au NDs slightly enhanced the absorptions of the ... See full document
8
Enhanced spectral response in polymer bulk heterojunction solar cells by using active materials with complementary spectra
... Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan b Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan c Research ... See full document
7
Symmetrical and unsymmetrical triphenylamine based diketopyrrolopyrroles and their use as donors for solution processed bulk heterojunction organic solar cells
... BHJ solar cells based on DPP3 and DPP4 as donor along with PC 71 BM as acceptor were made with a device structure ITO/PEDOT:PSS/DPP3 or DPP4:PC 71 BM/ ...coating of a constant ... See full document
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