材料科学
钙钛矿(结构)
纳米颗粒
同种类的
氧化锡
调制(音乐)
氧化物
化学工程
锡
二氧化锡
纳米技术
曲面(拓扑)
光电子学
无机化学
冶金
哲学
化学
物理
几何学
数学
美学
工程类
热力学
作者
Hyun‐Sung Yun,You‐Hyun Seo,Chae-Won Seo,Hyun Seo Kim,Hyun Seo Kim,Seunghyup Yoo,Bong Joo Kang,Nam Joong Jeon,Eui Hyuk Jung
标识
DOI:10.1002/aenm.202400791
摘要
Abstract Uniform film deposition over an entire substrate is indispensable to achieve efficient perovskite solar modules (PSMs) by minimizing the gap with high‐performance perovskite solar cells (PSCs). Only a few microscopic pinholes on the film in PSMs directly give rise to debase the performance and stimulate the degradation of the devices. Herein, a strategy of the homogeneous and defect‐reduced electron‐transport layer for high‐performance PSMs is reported. pH modulation of tin oxide (SnO 2 ) nanoparticles colloidal dispersion by a small amount of nitric acid (HNO 3 ) addition leads to the removal of hydroxy groups on the SnO 2 surface acting as electronic defects as well as superb regularity of the thin films by forming a network of the SnO 2 nanoparticles. The surface engineering of SnO 2 nanoparticles brings out the high performance of 23.7% efficiency for a unit cell, 20.3% efficiency for a 24.5 cm 2 minimodule, and 19.0% efficiency for a 214.7 cm 2 submodule, respectively, where all efficiencies are averaged from results obtained by the reverse/forward scan. In outdoor tests with the submodules, a target PSM generates 16.5% higher cumulative electricity for a month as compared to a control PSM. Furthermore, under damp heat environments, the target PSM maintains 80% efficiency compared to an initial efficiency of 1080 h.
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