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- Kim, Jin Young
- Next Generation Energy Lab.
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Indoloindole-based small molecule bulk heterojunction small molecule solar cells
- Author(s)
- Sung, Min Jae, An, Na Gyeong, Wang, Canjie, Kim, Yun-Hi, Kim, Jin Young, Kwon, Soon-Ki
- Issued Date
- 2019-02
- Citation
- DYES AND PIGMENTS, v.161, pp.419 - 426
- Abstract
- An acceptor-donor-acceptor (A-D-A) conjugated small molecule, DHII-EH-TR, was designed, synthesized, and its solar cell performance studied. The DHII-EH-TR molecule with its extended fused aromatic core had a narrow bandgap and displayed red-shifted absorption. To investigate its photovoltaic properties and device application, small molecule-based organic photovoltaics (SMOPVs) were fabricated having the conventional structure of ITO/PEDOT:PSS/DHII-EH-TR:PC70BM/ZnO NPs/Al (PEDOT:PSS, poly (3,4-ethylenedioxythiophene):polystyrene sulfonic acid; ZnO NPs, ZnO nanoparticles). Solar cells made with a blend of 1,8diiodooctane with ZnO NPs generated the highest performance with a power conversion efficiency (PCE) of 3.60%. Charge dynamics and transport, microscopic thin film analysis, and morphology were studied to explain the performance of SMOPVs made with DHII-EH-TR.
- Publisher
- ELSEVIER SCI LTD
- ISSN
- 0143-7208
- Keyword (Author)
- Small molecule-based OPV, Chemical structure design, 3-Ethylrhodanines, Morphology, Charge dynamics and transport, Indoloindole core
- Keyword
- DONOR-ACCEPTOR POLYMERS, TANDEM POLYMER, UNIT, TRANSISTORS, COPOLYMERS, EFFICIENCY, DEVICES, OXIDE
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