https://scholars.lib.ntu.edu.tw/handle/123456789/408694
標題: | Efficiency enhancement of hybrid perovskite solar cells with MEH-PPV hole-transporting layers | 作者: | Chen H.-W. Huang T.-Y. Chang T.-H. Sanehira Y. Kung C.-W. Chu C.-W. Ikegami M. Miyasaka T. Ho K.-C. |
公開日期: | 2016 | 卷: | 6 | 來源出版物: | Scientific Reports | 摘要: | In this study, hybrid perovskite solar cells are fabricated using poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and poly(3-hexylthiophene-2,5-diyl) (P3HT) as dopant-free hole-transporting materials (HTMs), and two solution processes (one- and two-step methods, respectively) for preparing methylammonium lead iodide perovskite. By optimizing the concentrations and solvents of MEH-PPV solutions, a power conversion efficiency of 9.65% with hysteresis-less performance is achieved, while the device with 2,2¡¬,7,7¡¬-tetrakis(N,N-di-p-methoxyphenylamine)-9,9¡¬spirobifluorene (Spiro-OMeTAD) doped with lithium salts and tert-butylpyridine (TBP) exhibits an efficiency of 13.38%. This result shows that non-doped MEH-PPV is a suitable, low-cost HTM for efficient polymer-based perovskite solar cells. The effect of different morphologies of methylammonium lead iodide perovskite on conversion efficiency is also investigated by incident photon-to-electron conversion efficiency (IPCE) curves and electrochemical impedance spectroscopy (EIS). ? The Author(s) 2016. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/408694 | ISSN: | 20452322 | DOI: | 10.1038/srep34319 |
顯示於: | 化學工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。