.png){kind=icon}
.png){kind=icon}
Return
Unveiling the Single-Solvent Vacuum-Flash Process for High-Efficiency Perovskite Solar Cells
.png){kind=icon}
PRE
AI
H
Y
Y
Y
Z
H
Y
Y
C
X
X
Y
C
J
DOI：10.1039/D5EE05421D.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
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.
Journal
IF:
30.8
Papers:
6.9K
Citations:
12.4W
Organization
No organization information available
Cited Papers