题目：

A Room-Temperature CuAlO₂ Hole Interfacial Layer for Efficient and Stable Planar Perovskite Solar Cells

作者：

Femi Igbari, Meng Li, Yun Hu, Zhao-Kui Wang* and Liang-Sheng Liao*

单位：

Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China.

摘要：

The fabrication and device parameters of inverted planar heterojunction (PHJ) organic-inorganic lead mixed-halide (CH₃NH₃PbI_3-xCl_x) perovskite based solar cells (PSCs) using a:CuAlO₂ as hole selective buffer layer between ITO electrode and PEDOT:PSS was demonstrated. The thin films of a:CuAlO₂ were derived from a pre-fabricated polycrystalline CuAlO₂ ceramic target via direct current (d.c.) magnetron sputtering technique. One-step spin coating method was used to prepare the perovskite layer. A short circuit current density (J_sc) of 21.98 mA/cm², an open circuit voltage (V_oc) of 0.88 V, a fill factor (FF) of 0.75 and a power conversion efficiency (PCE) of 14.52 % were achieved for the optimized device. These improved device parameters were also accompanied with improved stability as a result of sandwiching the ambient stable a:CuAlO₂ layer with decent conductivity between the ITO and the PEDOT:PSS layers. The versatility of this material application was also demonstrated as similar improvement in device performance and stability was observed by using the prepared a:CuAlO₂ in another perovskite solar cell system based on CH₃NH₃PbI₃ prepared by two-step spin-coating method.

影响因子：

7.443

分区情况：

1区

链接：

http://pubs.rsc.org/en/Content/ArticleLanding/2015/TA/C5TA07957H#!divAbstract