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题名: New generation perovskite solar cells with solution-processed amino-substituted perylene diimide derivative as electron-transport Layer
作者: Zhang, Hua1; Xue, Lingwei2; Han, Junbo3; Fu, Yong Qing4; Shen, Yan1; Zhang, Zhiguo2; Li, Yongfang2; Wang, Mingkui1
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2016-06-14
卷: 4, 期:22, 页:8724-8733
收录类别: SCI
英文摘要: In this study, for the first time, we introduced amino-substituted perylene diimide derivative (N-PDI) as an alternative electron transport layer (ETL) to replace the commonly used TiO2 in planar heterojunction perovskite solar cells. Two types of device structures, i.e.. glass/FTO/N-PDI/CH3NH3PbI3-xClx/spiro-MeOTAD/Au and polyethylene terephthalate PET/ITO/N-PDI/CH(3)NH(3)Pbl(3-x)/spiro-MeOTAD/Au, were fabricated on both rigid and flexible substrates using room-temperature solution processing technique. Based on the proposed device structures, power conversion efficiency (PCE) of 17.66% was obtained based on glass/FTO rigid substrates, and a PCE of 14.32% was achieved based on PET/ITO flexible substrates. The results showed that the terminal amino group in N-PDI enhanced the wetting capability of the surfaces to perovskite, reduced the surface work function of the FTO substrate and passivated the surface trap states of the perovskite films. These results confirm that small molecule semiconductor N-PDI can serve as an effective electron-transport material for achieving high-performance perovskite solar cells and draw molecular design guidelines for electron-selective contacts with perovskite.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35537
Appears in Collections:有机固体实验室_期刊论文

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作者单位: 1.Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Michael Gratzel Ctr Mesoscop Solar Cells, Luoyu Rd 1037, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
3.Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, 1037 Luoyu Rd, Wuhan 430074, Peoples R China
4.Northumbria Univ, Fac Engn & Environm, Dept Phys & Elect Engn, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England
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