TY - JOUR
T1 - Solution-processed Nb:SnO2 electron transport layer for efficient planar perovskite solar cells
AU - Ren, Xiaodong
AU - Yang, Dong
AU - Yang, Zhou
AU - Feng, Jiangshan
AU - Zhu, Xuejie
AU - Niu, Jinzhi
AU - Liu, Yucheng
AU - Zhao, Wangen
AU - Liu, Shengzhong Frank
PY - 2017/1/25
Y1 - 2017/1/25
N2 - Electron transport layer (ETL), facilitating charge carrier separation and electron extraction, is a key component in planar perovskite solar cells (PSCs). We developed an effective ETL using low-temperature solution-processed Nb-doped SnO2 (Nb:SnO2). Compared to the pristine SnO2, the power conversion efficiency of PSCs based on Nb:SnO2 ETL is raised to 17.57% from 15.13%. The splendid performance is attributed to the excellent optical and electronic properties of the Nb:SnO2 material, such as smooth surface, high electron mobility, appropriate electrical conductivity, therefore making a better growth platform for a high quality perovskite absorber layer. Experimental analyses reveal that the Nb:SnO2 ETL significantly enhances the electron extraction and effectively suppresses charge recombination, leading to improved solar cell performance.
AB - Electron transport layer (ETL), facilitating charge carrier separation and electron extraction, is a key component in planar perovskite solar cells (PSCs). We developed an effective ETL using low-temperature solution-processed Nb-doped SnO2 (Nb:SnO2). Compared to the pristine SnO2, the power conversion efficiency of PSCs based on Nb:SnO2 ETL is raised to 17.57% from 15.13%. The splendid performance is attributed to the excellent optical and electronic properties of the Nb:SnO2 material, such as smooth surface, high electron mobility, appropriate electrical conductivity, therefore making a better growth platform for a high quality perovskite absorber layer. Experimental analyses reveal that the Nb:SnO2 ETL significantly enhances the electron extraction and effectively suppresses charge recombination, leading to improved solar cell performance.
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U2 - 10.1021/acsami.6b13362
DO - 10.1021/acsami.6b13362
M3 - Article
C2 - 27995789
AN - SCOPUS:85011092532
SN - 1944-8244
VL - 9
SP - 2421
EP - 2429
JO - ACS Applied Materials and Interfaces
JF - ACS Applied Materials and Interfaces
IS - 3
ER -