Tian Qiushi, Sun Jinglin, Yu Chao, Lv Siwei, Wang Feifei, Cheng Zhendong, Jin Haibao, Chen Shangshang, Yang Zhibin
Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China.
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
Small. 2025 Aug;21(32):e2504404. doi: 10.1002/smll.202504404. Epub 2025 Jun 8.
Perovskite-based indoor photovoltaics (IPVs) have emerged as competitive candidates for low-power consumption electronic devices, where the development of fully solution-processed fabrication protocols becomes urgent to enable roll-to-roll compatible manufacture. In this study, blade-coated perovskite IPV devices are developed by blade-coating high-quality hole and electron transporting layers through solvent and morphology engineering, respectively. A uniform hole-transporting layer of polymeric carbazole phosphonic acid is achieved by tuning the properties co-solvent system, while a compact electron-transporting layer of poly(fullerene-alt-xylene) is realized by adjusting the morphology of the underlying perovskite layer. The blade-coated cells (6.84 mm) and mini-modules (10.4 cm) achieve impressive efficiencies of 31.8% and 24.0%, respectively, under 1000 lux LED illumination (4000 K), retaining over 80% PCE of control devices fabricated by spin-coating and thermal evaporation. This work addresses the key challenges faced in scalable solution-processed perovskite IPV production, offering a pathway to transition from lab research to industrial production.
基于钙钛矿的室内光伏（IPV）已成为低功耗电子设备的有力候选者，在此情况下，开发完全溶液处理的制造工艺对于实现卷对卷兼容制造变得至关重要。在本研究中，通过分别通过溶剂和形貌工程对高质量的空穴和电子传输层进行刮涂，开发出了刮涂式钙钛矿IPV器件。通过调节共溶剂体系的性质，获得了聚合物咔唑膦酸的均匀空穴传输层，而通过调整下层钙钛矿层的形貌，实现了聚（富勒烯-alt-二甲苯）的致密电子传输层。在1000勒克斯LED照明（4000 K）下，刮涂式电池（6.84毫米）和微型模块（10.4厘米）分别实现了31.8%和24.0%的令人印象深刻的效率，保留了通过旋涂和热蒸发制造的对照器件超过80%的功率转换效率。这项工作解决了可扩展溶液处理钙钛矿IPV生产中面临的关键挑战，为从实验室研究向工业生产的转变提供了一条途径。
