Cubic halide perovskites in the Cs(Pb1−xSnx)(Br3−yCly) solid solutions for crack-free Bridgman grown single crystals

IF 1.8 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

MRS Communications Pub Date : 2024-03-11 DOI:10.1557/s43579-024-00535-6

Aleksandra D. Valueva, Sergei A. Novikov, Joshua Bledsoe, Yile Cai, Alevtina A. Maksimova, Jason Locklin, Yiping Zhao, Vladislav V. Klepov

引用次数: 0

Abstract

Bridgman grown CsPbBr₃ single crystals have demonstrated γ-ray spectra with a high resolution, making them a highly promising competitor for the current benchmark room-temperature radiation detector Cd_1−xZn_xTe. However, CsPbBr₃ crystal growth is a very slow process that oftentimes results in cracked ingots due to phase transitions from cubic to orthorhombic crystal systems. In this report, we demonstrate the stabilization of a room-temperature cubic phase in Cs(Pb_1−xSn_x)(Br_3−yCl_y) solid solutions to overcome this issue. Cs(Pb_0.75Sn_0.25)(Br_1.00Cl_2.00) was identified as the most promising composition and grown as a crack-free ingot using Bridgman growth in around one week.

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无裂纹布里奇曼生长单晶的 Cs(Pb1-xSnx)(Br3-yCly)固溶体中的立方卤化物包晶

布里奇曼生长的 CsPbBr3 单晶体已显示出高分辨率的 γ 射线光谱，使其极有希望成为当前基准室温辐射探测器 Cd1-xZnxTe 的竞争对手。然而，CsPbBr3 晶体生长是一个非常缓慢的过程，由于从立方晶系到正方晶系的相变，经常会导致晶锭开裂。在本报告中，我们展示了如何在 Cs(Pb1-xSnx)(Br3-yCly)固溶体中稳定室温立方相，以克服这一问题。Cs(Pb0.75Sn0.25)(Br1.00Cl2.00)被确定为最有前途的成分，并利用布里奇曼生长法在一周左右的时间内生长为无裂纹铸锭。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

MRS Communications MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

2.60

自引率

10.50%

发文量

166

审稿时长

>12 weeks

期刊介绍： MRS Communications is a full-color, high-impact journal focused on rapid publication of completed research with broad appeal to the materials community. MRS Communications offers a rapid but rigorous peer-review process and time to publication. Leveraging its access to the far-reaching technical expertise of MRS members and leading materials researchers from around the world, the journal boasts an experienced and highly respected board of principal editors and reviewers.