In article number 2000453, Weili Yu, Chunlei Guo and co‐workers demonstrate that by combining the space‐limiting technique and the anti‐temperature crystallization method, millimeter sized MAPbI₃ perovskite monocrystals with thickness from tens of nanometers to micrometers can be fabricated. Solar cells based on the 300 nm thick perovskite monocrystal are prepared, which show 3% enhancement in power conversion efficiency (PCE) compared to their polycrystalline counterparts. This work provides a scalable way to synthesize high quality perovskite crystals with less grains and grain boundaries, is believed a key step to develop perovskite single crystal solar cells with high performance.

中文翻译：

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钙钛矿单晶：超薄钙钛矿单晶可提高太阳能电池的性能（Adv。Energy Mater。34/2020）

在文章2000453中，于伟利，郭春雷及其同事证明，通过结合空间限制技术和抗温结晶方法，可以制造厚度从几十纳米到微米的毫米级MAPbI ₃钙钛矿单晶。制备了基于300 nm钙钛矿单晶的太阳能电池，与多晶同行相比，其功率转换效率（PCE）提高了3％。这项工作为合成具有较少晶粒和晶界的高质量钙钛矿晶体提供了可扩展的方法，被认为是开发具有高性能的钙钛矿单晶太阳能电池的关键步骤。