用于改善倒置钙钛矿太阳能电池中空穴传输的均质化氧化镍纳米颗粒。
Homogenized NiO nanoparticles for improved hole transport in inverted perovskite solar cells.
作者信息
Yu Shiqi, Xiong Zhuang, Zhou Haitao, Zhang Qian, Wang Zhenhan, Ma Fei, Qu Zihan, Zhao Yang, Chu Xinbo, Zhang Xingwang, You Jingbi
机构信息
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, P. R. China.
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
出版信息
Science. 2023 Dec 22;382(6677):1399-1404. doi: 10.1126/science.adj8858. Epub 2023 Nov 23.
The power conversion efficiency (PCE) of inverted perovskite solar cells (PSCs) is still lagging behind that of conventional PSCs, in part because of inefficient carrier transport and poor morphology of hole transport layers (HTLs). We optimized self-assembly of [4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid (Me-4PACz) onto nickel oxide (NiO) nanoparticles as an HTL through treatment with hydrogen peroxide, which created a more uniform dispersion of nanoparticles with high conductivity attributed to the formation of Ni as well as surface hydroxyl groups for bonding. A 25.2% certified PCE for a mask size of 0.074 square centimeters was obtained. This device maintained 85.4% of the initial PCE after 1000 hours of stabilized power output operation under 1 sun light irradiation at about 50°C and 85.1% of the initial PCE after 500 hours of accelerated aging at 85°C. We obtained a PCE of 21.0% for a minimodule with an aperture area of 14.65 square centimeters.
倒置钙钛矿太阳能电池（PSC）的功率转换效率（PCE）仍落后于传统PSC，部分原因是载流子传输效率低下以及空穴传输层（HTL）的形态不佳。我们通过用过氧化氢处理，优化了[4-(3,6-二甲基-9H-咔唑-9-基)丁基]膦酸（Me-4PACz）在氧化镍（NiO）纳米颗粒上的自组装，使其作为HTL，这产生了更均匀分散的具有高导电性的纳米颗粒，这归因于Ni的形成以及用于键合的表面羟基。对于0.074平方厘米的掩膜尺寸，获得了25.2%的认证PCE。该器件在约50°C的1个太阳光照下进行1000小时稳定功率输出操作后，保持了初始PCE的85.4%，在85°C下进行500小时加速老化后，保持了初始PCE的85.1%。对于孔径面积为14.65平方厘米的微型模块，我们获得了21.0%的PCE。
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