材料科学
钙钛矿(结构)
氧化铟锡
纳米颗粒
解吸
图层(电子)
铟
化学工程
能量转换效率
氧化锡
光电子学
阳极
纳米技术
氧化物
分子
阴极
锡
溶剂
光伏系统
溶解过程
光伏
扩散
活动层
单层
作者
Bo Feng,Wen J. Li,Zhengbo Cui,Yunfei Li,Wentao He,Sheng Fu,Wenxiao Zhang,Xiaodong Li,Junfeng Fang
标识
DOI:10.1002/adma.202517573
摘要
Recently, inverted perovskite solar cells (PSCs) show rapidly improved efficiency with the use of self-assembled molecules (SAM). However, device stability remains a challenge due to the easy desorption of the SAM molecule. Here, functionalized indium tin oxide nanoparticles (INPs) are introduced to promote and reinforce the self-assembly of SAM on the substrate. INPs contain abundant ─OH groups to uniformly anchor SAM molecules. Importantly, different from traditional physically absorbed and easy-desorbed ─OH in ITO substrate, the ─OH groups on INPs are stably bonded, resistant to solvent rinsing and long-term aging, thus inhibiting SAM desorption during device aging. As a result, PSCs with INPs exhibit high efficiency of 26.44% with good operational stability under ISOS-L-2 protocol, retaining ∼≈91% of initial efficiency after maximum power point (MPP) tracking with continuous illumination at 85 °C.
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