期刊
ENERGY & ENVIRONMENTAL SCIENCE
卷 7, 期 4, 页码 1454-1460出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ee44174a
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资金
- Nano Material Technology Development Program [2012M3A7B4049989]
- National Research Foundation of Korea (NRF)
- Korea government (MSIP) for the Center for Next Generation Dye-Sensitized Solar Cells [2008-0061903]
- Center for Advanced Soft Electronics under the Global Frontier Research Program through the NRF [NRF-2012M3A6A5055225]
- MEST (Korea)
- National Research Foundation of Korea [2008-0061903, 2012M3A6A5055225, 2012M3A7B4049989] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Poly[2,5-bis(2-decyldodecyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione-(E)-1,2-di(2,2 '-bithiophen-5-yl)ethene] (PDPPDBTE) was successfully incorporated as a p-type hole transporting material in solid-state organic-inorganic hybrid solar cells. The excellent optical and electrical properties of organo-lead halide perovskite (CH3NH3PbI3) nanocrystals used as light harvesters yielded a 9.2% power conversion efficiency (PCE) for the best-performing cell that exceeded the value (7.6%) obtained from the best hole conductor yet reported (2,2 ',7,7 '-tetrakis(N,N-di-p-methoxyphenyl-amine)9,9 '-spirobifluorene, spiro-MeOTAD). The high PCE was attributed to the optimal oxidation potential (5.4 eV) and excellent charge carrier mobility of the polymer. The hydrophobicity of the polymer prevented water permeation into the porous perovskite heterojunction, and long-term aging tests over 1000 hours confirmed the enhanced stability of the PDPPDBTE-based cells.
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