2D hybrid perovskites demonstrate better performances than 3D counterparts in certain optoelectronic devices, whereas their natural attributes cannot be extracted from microcrystalline films, such as the natural dichroism for polarized light detection. Herein, for the first time, unusual minute‐scale rapid crystallization is developed to grow bulk crystals of 2D hybrid perovskite, (FPEA)₂PbI₄ (1, FPEA is p‐fluorophenethylammonium), which enables superior carrier transport property (≈64.1 ns) and low trap density (≈10¹⁰ cm⁻³). The rapid growth rate of 27.3 mm³ h⁻¹ is almost two orders of magnitude higher than for other 2D counterparts. Strikingly, its natural quantum‐confined motif results in extraordinary dichroism with optical absorption ratio α_c/α_a ≈ 2.05, revealing great promises for polarized light detection. Consequently, crystal‐based photodetectors exhibit large photocurrent dichroic ratio I_max/I_min ≈ 2.1, fast response time (400 µs), and high detectivity (10¹¹ Jones) to the polarized light. This is the record‐fast crystallization of highly dichroic 2D hybrid perovskites, which opens a new prospect for their future optoelectronic device applications.

中文翻译：

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高二色性二维杂化钙钛矿晶体向高效偏振敏感光电探测器的微小尺度快速结晶。

2D混合钙钛矿在某些光电设备中表现出比3D同行更好的性能，而其自然属性无法从微晶膜中提取出来，例如用于偏振光检测的自然二色性。这里，对于第一次，异常分钟大规模快速结晶发达成长二维混合钙钛矿的块状晶体，（FPEA）₂碘化铅₄（1，FPEA是p -fluorophenethylammonium），使优异的载流子传输性（≈64.1纳秒）和低陷阱密度（≈10 ¹⁰厘米^-3）。27.3 mm ³ h ^-1的快速生长速率几乎比其他2D同行高两个数量级。引人注目的是，它的天然量子限制基序导致非凡二色性与光学吸收比α _Ç /α_一≈2.05，揭示用于偏振光检测大的承诺。因此，基于晶体的光检测器显示出大的光电流二色性比我_最大/余_分钟≈2.1，快速响应时间（400微秒），以及高探测灵敏度（10 ¹¹琼斯）到偏振光。这是高分色2D混合钙钛矿的创纪录结晶，这为其未来的光电器件应用打开了新的前景。