彭军教授与张晓宏教授合作在Energ. Environ. Sci.上发表论文

作者：

Huanyu Zhang^1#, Yige Peng^1#, Yurou Zhang^1,2#, Yi Ji¹*, Zewu Feng¹, Hailong Huang¹, Yanbo Wang¹, Yansen Guo¹, Chenghao Ge¹, Xin Li¹, Xueqi Wu¹, Yitong Liu¹, Chaopeng Huang², Jingsong Sun², Xiao-Hong Zhang³*, Jun Peng^1,2*

单位：

¹State Key Laboratory of Bioinspired Interfacial Materials Science, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China.

²Zhejiang Baima Lake Laboratory, Hangzhou, 310000, China

³Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, China.

摘要：

High-crystallinity perovskite films with low trap density are a prerequisite for realizing high-performance perovskite solar cells (PSCs). Here, we present a straightforward single-solvent vacuum-flash (SSVF) method for fabricating high-quality perovskite films using a simplified, single-solvent precursor system (e.g., N,N-dimethylformamide (DMF), dimethylacetamide (DMAC), and γ-valerolactone (GVL)). By creating a low temperature (LT) and vacuum environment for the precursor wet film, the SSVF method enables precise regulation of solvent evaporation dynamics, resulting in the formation of highly compact perovskite films with low trap densities. As a result, the PSCs fabricated via this method achieve a champion power conversion efficiency (PCE) of 26.93%, along with a certified PCE of 26.78% (certified steady-state efficiency of 26.39%). This performance ranks among the highest efficiencies ever reported for any vacuum-flash (VF)-based technique. Furthermore, owing to the enhanced phase stability of the perovskite film prepared via the SSVF method, the resulting PSC exhibits excellent operational durability, maintaining over 94% of its initial efficiency after 1000 hours of continuous operation.

影响因子：

32.4

分区情况：

一区

链接：

https://doi.org/10.1039/D5EE05421D