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Author

Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab (ATOMS)
Research Interests
  • Optoelectronic materials synthesis/organic electronics, functionalization of carbonaceous solids, advanced materials chemistry, macromolecular chemistry

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A simultaneous achievement of high performance and extended thermal stability of bulk-heterojunction polymer solar cells using a polythiophene-fullerene block copolymer

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Title
A simultaneous achievement of high performance and extended thermal stability of bulk-heterojunction polymer solar cells using a polythiophene-fullerene block copolymer
Author
Yun, Myoung HeeKim, JonggiYang, ChangdukKim, Jin Young
Keywords
Atomic force; Bulk heterojunction; Control device; In-phase; Interfacial morphologies; Methyl esters; Poly (3-hexylthiophene); Polymer Solar Cells; Power conversion efficiencies; Simultaneous achievement
Issue Date
201209
Publisher
ELSEVIER SCIENCE BV
Citation
SOLAR ENERGY MATERIALS AND SOLAR CELLS, v.104, no., pp.7 - 12
Abstract
We report substantial improvements in efficiency and thermal stability of the poly(3-hexylthiophene):[6.6]-phenyl-C-61-butyric acid methyl ester (PCBM) (P3HT:PCBM) bulk heterojunction (BHJ) system by adding a diblock copolymer P3HT-b-P(St(89)BAz(11))-C-60 (P3HT=poly (3-hexylthiophene), St=styrene, BAz=benzyl aside) as a compatibilizer. Small amounts of the diblock copolymer alter the interfacial morphology between the P3HT and PCBM components, resulting in a noticeable difference in phase segregation of the BHJ films, as evident in atomic force microscopy images. The best performance is observed in the P3HT:PCBM cell with 10% P3HT-b-P(St(89)BAz(11))-C-60, which exhibits substantially improved power conversion efficiency and thermal stability compared to the P3HT:PCBM control device.
URI
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DOI
http://dx.doi.org/10.1016/j.solmat.2012.04.035
ISSN
0927-0248
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