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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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Isomeric iminofullerenes as acceptors in bulk heterojunction organic solar cells

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Title
Isomeric iminofullerenes as acceptors in bulk heterojunction organic solar cells
Author
Park, Sung HeumYang, ChangdukCowan, SarahLee, Jae KwanWudl, FredLee, KwangheeHeeger, Alan J.
Issue Date
2009-08
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY, v.19, no.31, pp.5624 - 5628
Abstract
Two stable iminofullerene isomers, [5,6]-open azafulleroid (open APCBM) and [6,6]-closed aziridinofullerene (closed APCBM) enable us to scrutinize the use of these new acceptors in polymer bulk heterojunction (BHJ) solar cells and compare the effects of open trans- and closed trans-annlar subunits. When we compared the performance of both isomer devices, the poly(3-hexylthiophene)(P3HT):open APCBM device demonstrates an enhancement in photocurrent in comparison with the P3HT: closed APCBM device. From the comparative study, we attribute the enhanced current to the lower degree of symmetry of open APCBM. The alteration of fullerene structure from closed to open breaks its high degree of symmetry and consequently leads to an improved bulk heterojunction with the electron donating conjugated polymer.
URI
https://scholarworks.unist.ac.kr/handle/201301/2595
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=68149100005
DOI
10.1039/b904535j
ISSN
0959-9428
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