@article{Zhang2016, 
author = {Xinqian Zhang and Gang Wu and Zhuowei Gu and Bing Guo and Wenqing Liu and Shida Yang and Tao Ye and Chen Chen and Weiwei Tu and Hongzheng Chen},
title = {Active-layer evolution and efficiency improvement of (CH3NH3)3Bi2I9-based solar cell on TiO2-deposited ITO substrate},
year = {2016},
journal = {Nano Research},
volume = {9},
number = {10},
pages = {2921-2930},
keywords = {methyl-ammonium bismuth (III) iodide, organic–inorganic hybrid solar cell, TiO2-depostied indium tin oxide (ITO) substrate, morphology and crystallinity, precursor solution concentration},
url = {https://www.sciopen.com/article/10.1007/s12274-016-1177-8},
doi = {10.1007/s12274-016-1177-8},
abstract = {We systematically investigated the development of film morphology and crystallinity of methyl-ammonium bismuth (III) iodide (MA3Bi2I9) through onestep spin-coating on TiO2-deposited indium tin oxide (ITO)/glass. The precursor solution concentration and substrate structure have been demonstrated to be critically important in the active-layer evolution of the MA3Bi2I9-based solar cell. This work successfully improved the cell efficiency to 0.42% (average: 0.38%) with the mesoscopic architecture of ITO/compact-TiO2/mesoscopic-TiO2 (meso-TiO2)/MA3Bi2I9/2, 2′, 7, 7′-tetrakis(N, N-di-4-methoxyphenylamino)-9, 9′spiro-bifluorene (spiro-MeOTAD)/MoO3/Ag under a precursor concentration of 0.45 M, which provided the probability of further improving the efficiency of the Bi3+-based lead-free organic–inorganic hybrid solar cells.}
}