TY - JOUR
T1 - MXene-Modulated Electrode/SnO2Interface Boosting Charge Transport in Perovskite Solar Cells
AU - Wang, Yunfan
AU - Xiang, Pan
AU - Ren, Aobo
AU - Lai, Huagui
AU - Zhang, Zhuoqiong
AU - Xuan, Zhipeng
AU - Wan, Zhenxi
AU - Zhang, Jingquan
AU - Hao, Xia
AU - Wu, Lili
AU - Sugiyama, Masakazu
AU - Schwingenschlögl, Udo
AU - Liu, Cai
AU - Tang, Zeguo
AU - Wu, Jiang
AU - Wang, Zhiming
AU - Zhao, Dewei
N1 - Funding Information:
We would like to thank Dr. Yingming Zhu for SEM images capturing and analysis. This work was financially supported by the Science and Technology Program of Sichuan Province (nos. 2017GZ0052, 2019ZDZX0015, 2020YFH0079, and 2020JDJQ0030), the National Key Research, Development Program of China (no. 2019YFB2203400), the Fundamental Research Funds for the Central Universities (nos. YJ201722, YJ201955, and ZYGX2019Z018), the National Natural Science Foundation of China (no. 61974014), and China Postdoctoral Science Foundation (no. 232888). The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).
Publisher Copyright:
© 2020 American Chemical Society
PY - 2020/12/2
Y1 - 2020/12/2
N2 - Interface engineering is imperative to boost the extraction capability in perovskite solar cells (PSCs). We propose a promising approach to enhance the electron mobility and charge transfer ability of tin oxide (SnO2) electron transport layer (ETL) by introducing a two-dimensional carbide (MXene) with strong interface interaction. The MXene-modified SnO2 ETL also offers a preferable growth platform for perovskite films with reduced trap density. Through a spatially resolved imaging technique, profoundly reduced non-radiative recombination and charge transport losses in PSCs based on MXene-modified SnO2 are also observed. As a result, the PSC achieves an enhanced efficiency of 20.65% with ultralow saturated current density and negligible hysteresis. We provide an in-depth mechanistic understanding of MXene interface engineering, offering an alternative approach to obtain efficient PSCs.
AB - Interface engineering is imperative to boost the extraction capability in perovskite solar cells (PSCs). We propose a promising approach to enhance the electron mobility and charge transfer ability of tin oxide (SnO2) electron transport layer (ETL) by introducing a two-dimensional carbide (MXene) with strong interface interaction. The MXene-modified SnO2 ETL also offers a preferable growth platform for perovskite films with reduced trap density. Through a spatially resolved imaging technique, profoundly reduced non-radiative recombination and charge transport losses in PSCs based on MXene-modified SnO2 are also observed. As a result, the PSC achieves an enhanced efficiency of 20.65% with ultralow saturated current density and negligible hysteresis. We provide an in-depth mechanistic understanding of MXene interface engineering, offering an alternative approach to obtain efficient PSCs.
KW - current transport efficiency
KW - electroluminescence imaging
KW - energy level alignment
KW - interface engineering
KW - perovskite solar cells
KW - Ti3C2Tx MXene
UR - http://www.scopus.com/inward/record.url?scp=85096566316&partnerID=8YFLogxK
U2 - 10.1021/acsami.0c17338
DO - 10.1021/acsami.0c17338
M3 - Journal article
C2 - 33200937
AN - SCOPUS:85096566316
SN - 1944-8244
VL - 12
SP - 53973
EP - 53983
JO - ACS Applied Materials and Interfaces
JF - ACS Applied Materials and Interfaces
IS - 48
ER -
