Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 12, Issue 37, Pages 41454-41463Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c11253
Keywords
lead-free; perovskite solar cells; crystallization; tin-based; seeded growth
Funding
- National Key Research and Development Program of China [2017YFB0404501]
- National Natural Science Foundation of China [61505086, 61705111, 61704091]
- National Major Fundamental Research Program of China [91833306]
- Natural Science Foundation of Jiangsu Province [BM2012010, BK20170899]
- Science Fund for Distinguished Young Scholars of Jiangsu Province of China [BK20160039]
- Priority Academic Program Development of Jiangsu Higher Education Institutions [YX030002]
- Synergetic Innovation Center for Organic Electronics and Information Displays
- National Postdoctoral Program for Innovative Talents [BX201700122]
- Startup Foundation of Nanjing University of Posts and Telecommunications [NY217010, NY217011]
- Open Foundation from Jilin University [IOSKL2018KF01]
Ask authors/readers for more resources
Although rapid progress has been made in tin-based perovskite solar cells (PSCs), the inferior film qualities of the solution-processed perovskites always lead to poor reproducibility and instability. Herein, we present a simple seeded growth (SG) approach to obtain high-quality tin-based perovskite films with preferred crystal orientation, large grain sizes, and fewer apparent grain boundaries. High-quality tin-based perovskite films fabricated through this SG process could greatly reduce the nonradiative recombination centers and inhibit the oxidation of Sn2+. Using formamidinium tin tri-iodide (FASnI(3)) perovskites, the SG-PSCs exhibit a much improved efficiency from 5.37% (control) to 7.32% with all improved photovoltaic parameters. Moreover, this SG strategy is easily applicable to other tin-based perovskite compositions. The PSC based on methylammonium (MA) doped mixed-cation perovskite (FA(0.75)MA(0.25)SnI(3)) exhibited a power conversion efficiency (PCE) of 8.54% with an improvement of 19.3% in the photovoltaic performance, making it a general approach for achieving efficient tin-based PSCs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available