期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 14, 期 41, 页码 14217-14223出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cp41465a
关键词
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资金
- NSFC [21004019, 51173040, 91023039, 21021091]
- Ministry of Science and Technology of China [2011AA050523, 2010DFB63530]
- Chinese Academy of Sciences [KGCX2-YW-399+9-1]
- Beijing NOVA Program [2010B038]
- SRFDP [20100036120007]
- Fundamental Research Funds for the Central Universities, China [10MG32]
We report efficient polymer solar cells (PSCs) based on poly(3-hexylthiophene) (P3HT) and indene-C-60 bisadduct (ICBA) with water soluble nickel acetate (NiAc) instead of acidic poly(ethylenedioxythiophene) : poly(styrene sulfonate) (PEDOT : PSS) as hole collection layer (HCL). The NiAc layer after thermal annealing at 150 degrees C for 30 min (alpha-NiAc) shows high transparency with light transmittance better than PEDOT: PSS in the wavelength range of 500-900 nm, high hole mobility of 1.3 x 10(-3) cm(2) V-1 s(-1) and suitable energy levels for application as HCL. The power conversion efficiency of the PSC based on P3HT/ICBA with the alpha-NiAc anode buffer layer reached 6.08% under the illumination of AM1.5G 100 mW cm(-2), which is among the best efficiencies of the P3HT-based PSCs. This work gives a new option for HCL selection in designing higher efficiency and more stable PSCs.
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