Stable semi-transparent CH3NH3PbI3 planar sandwich solar cells. Issue 10 (28th August 2015)

• Record Type: Journal Article
• Authors: Heo, Jin Hyuck; Han, Hye Ji; Lee, Minho; Song, Myungkwan; Kim, Dong Ho; Im, Sang Hyuk
• Is Part Of: Energy & environmental science. Volume 8:Issue 10(2015)
• Page Start: 2922
• Page End: 2927
• Publication Date: 2015-08-28
• Subjects: Energy conversion -- Periodicals; Fuel switching -- Periodicals; Environmental sciences -- Periodicals; Environmental chemistry -- Periodicals; 333.79
• DOI: 10.1039/c5ee01050k
• Languages: English
• ISSNs: 1754-5692

Abstract

Abstract : Semi-transparent MAPbI3 planar sandwich solar cells were fabricated by simply laminating an F doped tin oxide/TiO2 /MAPbI3 /wet hole transporting material with additives and PEDOT:PSS/indium tin oxide (ITO). Abstract : Semi-transparent CH3 NH3 PbI3 (MAPbI3 ) planar sandwich solar cells could be fabricated by simply laminating an FTO (F doped tin oxide)/TiO2 /MAPbI3 /wet hole transporting material (HTM) with additives and PEDOT:PSS (poly(3, 4-ethylenedioxythiophene):poly(styrenesulfonic acid))/indium tin oxide (ITO). The best FTO/TiO2 /MAPbI3 /P3HT with additives/PEDOT:PSS/ITO planar sandwich structured solar cells exhibited a 12.8% (deviation: 11.7% ± 0.74%) average power conversion efficiency ( η avg ) but poor visible transmittance due to strong absorption by P3HT. Meanwhile, the semi-transparent FTO/TiO2 /MAPbI3 /PTAA with additives/PEDOT:PSS/ITO planar sandwich solar cells exhibited a 15.8% (deviation: 14.45% ± 0.76%) η avg without significant J – V hysteresis with respect to the forward and reverse scan directions. The average visible transmittance (AVT) was controlled from 17.3% to 6.3% and the corresponding η avg changed from 12.55% to 15.8%. The unsealed sandwich planar perovskite solar cells exhibited great air and humidity stability over 20 days due to the self-passivated device architecture of the sandwich type device.