Jheng Bo-Rong, Chiu Pei-Ting, Yang Sheng-Hsiung, Tong Yung-Liang
Institute of Lighting and Energy Photonics, College of Photonics, National Yang Ming Chiao Tung University, No.301, Section 2, Gaofa 3rd Road, Guiren District, Tainan, 71150, Taiwan ROC.
Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, No.360, Gaofa 2nd Road, Guiren District, Tainan, 71150, Taiwan ROC.
Sci Rep. 2022 Feb 21;12(1):2921. doi: 10.1038/s41598-022-06764-w.
Inorganic metal oxides with the merits of high carrier transport capability, low cost and superior chemical stability have largely served as the hole transport layer (HTL) in perovskite solar cells (PSCs) in recent years. Among them, ternary metal oxides have gradually attracted attention because of the wide tenability of the two inequivalent cations in the lattice sites that offer interesting physicochemical properties. In this work, ZnCoO nanoparticles (NPs) were prepared by a chemical precipitation method and served as the HTL in inverted PSCs. The device based on the ZnCoO NPs HTL showed better efficiency of 12.31% and negligible hysteresis compared with the one using PEDOT:PSS film as the HTL. Moreover, the device sustained 85% of its initial efficiency after 240 h storage under a halogen lamps matrix exposure with an illumination intensity of 1000 W/m, providing a powerful strategy to design long term stable PSCs for future production.
近年来，具有高载流子传输能力、低成本和优异化学稳定性等优点的无机金属氧化物在很大程度上被用作钙钛矿太阳能电池（PSC）的空穴传输层（HTL）。其中，三元金属氧化物因其晶格位点上两个不等价阳离子的广泛可调性而逐渐受到关注，这种可调性赋予了有趣的物理化学性质。在这项工作中，通过化学沉淀法制备了ZnCoO纳米颗粒（NP），并将其用作倒置PSC中的HTL。与使用PEDOT:PSS薄膜作为HTL的器件相比，基于ZnCoO NP HTL 的器件表现出更好的效率，为12.31%，且滞后现象可忽略不计。此外，该器件在1000 W/m的光照强度下，在卤素灯矩阵照射下储存240小时后仍保持其初始效率的85%，为未来生产设计长期稳定的PSC提供了有力策略。
