近日，苏州大学张晓宏团队报道了具有氧化锡复合层和电极的无铟钙钛矿/硅串联太阳能电池。2026年7月9日，《科学》杂志发表了这一成果。

铟基透明导电氧化物被广泛用作钙钛矿/硅叠层太阳能电池的电极和复合层，但其规模化应用受到铟稀缺性和溅射损伤的制约。

研究组报道了通过反应等离子体沉积氧化锡（RPD-SnO_x）实现的高效稳定无铟钙钛矿/硅叠层太阳能电池。以RPD-SnO_x作为复合层，研究组获得了33.6%的认证效率。将RPD-SnO_x同时用作复合层和电极的全无铟叠层电池实现了33.2%（1 cm²）的冠军功率转换效率，以及认证效率达31.0%（207.9 cm²）的迷你组件。RPD-SnO_x致密均匀的自组装单层锚定抑制了非辐射复合并减少了卤化物迁移。无铟迷你组件表现出高热稳定性、湿热稳定性和户外运行稳定性，在户外运行105天后仍保持其初始最大效率的65%。

附：英文原文

Title: Indium-free perovskite/silicon tandem solar cells with tin oxide recombination layer and electrodes

Author: Ruy Sebastian Bonilla

Issue&Volume: 2026-07-09

Abstract: Indium-based transparent conductive oxides are widely used as electrodes and recombination layers in perovskite/silicon tandem solar cells, yet their scalability is constrained by indium scarcity and sputtering-induced damage. We report high-efficiency and stable indium-free perovskite/silicon tandem solar cells enabled by reactive plasma deposited tin oxide (RPD-SnOx). For RPD-SnOx as the recombination layer, we achieved a certified efficiency of 33.6%. Fully indium-free tandems that used RPD-SnOx as both recombination layer and electrodes delivered a champion power conversion efficiency of 33.2% (1 square centimeter) and a minimodule with a certified efficiency of 31.0% (207.9 square centimeters). Dense and uniform self-assembled monolayer anchoring enabled by RPD-SnOx suppressed nonradiative recombination and reduced halide migration. Indium-free minimodules exhibited high thermal, damp-heat, and outdoor operational stability and retained 65% of their maximum initial efficiency after 105 days of outdoor operation.

DOI: aef5355

Source: https://www.science.org/doi/10.1126/science.aef5355