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Halide-Diffusion-Assisted Perovskite Lamination Process for Semitransparent Perovskite Solar Cells
Small ( IF 13.0 ) Pub Date : 2024-11-20 , DOI: 10.1002/smll.202409821
Jian Cheng, Wooyeon Kim, In Choi, Subin Yu, Bonkee Koo, Min Jae Ko

Semitransparent perovskite solar cells (PSCs) efficiently absorb light from both front and rear sides under illumination, and hence, PSCs have the potential for use in applications requiring bifacial or tandem solar cells. A facile method to fabricate semitransparent PSCs involves preparing a perovskite (PVSK) film on two transparent substrates and then laminating the substrates together. However, realizing high-performance laminated semitransparent PSCs is challenging because the imperfect contact at the PVSK interlayer results in void formation and partial degradation of PVSK. To address this issue, a halide-diffusion-assisted lamination (HDL) method is proposed. In the method, a controlled halide concentration gradient is used to effectively laminate the top and bottom PVSK layers. Semitransparent PSCs prepared through the HDL method (hereafter referred to as HDL-PSCs) exhibited a power conversion efficiency (PCE) of 18.93%. In particular, an HDL-PSC exhibited higher thermal stability, maintaining its initial PCE for over 1200 h at 85 °C.

中文翻译:


用于半透明钙钛矿太阳能电池的卤化物扩散辅助钙钛矿层压工艺



半透明钙钛矿太阳能电池 (PSC) 在照明下可有效吸收来自正面和背面的光,因此,PSC 有可能用于需要双面或串联太阳能电池的应用。制造半透明 PSC 的一种简单方法包括在两个透明衬底上制备钙钛矿 (PVSK) 薄膜,然后将衬底层压在一起。然而,实现高性能层压半透明 PSC 具有挑战性,因为 PVSK 夹层处的不完美接触会导致 PVSK 形成空洞和部分降解。为了解决这个问题,提出了一种卤化物扩散辅助层压 (HDL) 方法。在该方法中,使用受控的卤化物浓度梯度来有效地层压 PVSK 的顶部和底部层。通过 HDL 方法制备的半透明 PSC(以下简称 HDL-PSC)的功率转换效率 (PCE) 为 18.93%。特别是,HDL-PSC 表现出更高的热稳定性,在 85 °C 下保持其初始 PCE 超过 1200 小时。
更新日期:2024-11-20
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