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https://doi.org/10.1038/srep34319
Title: | Efficiency enhancement of hybrid perovskite solar cells with MEH-PPV hole-transporting layers | Authors: | Chen, H.-W Huang, T.-Y Chang, T.-H Sanehira, Y Kung, C.-W Chu, C.-W Ikegami, M Miyasaka, T Ho, K.-C |
Issue Date: | 2016 | Publisher: | Nature Publishing Group | Citation: | Chen, H.-W, Huang, T.-Y, Chang, T.-H, Sanehira, Y, Kung, C.-W, Chu, C.-W, Ikegami, M, Miyasaka, T, Ho, K.-C (2016). Efficiency enhancement of hybrid perovskite solar cells with MEH-PPV hole-transporting layers. Scientific Reports 6 : 34319. ScholarBank@NUS Repository. https://doi.org/10.1038/srep34319 | Rights: | Attribution 4.0 International | Abstract: | 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. | Source Title: | Scientific Reports | URI: | https://scholarbank.nus.edu.sg/handle/10635/182422 | ISSN: | 2045-2322 | DOI: | 10.1038/srep34319 | Rights: | Attribution 4.0 International |
Appears in Collections: | Elements Staff Publications |
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