Influence of Sn2+doping to improve the charge transport and light-emitting properties of CsPbCl3perovskites.

IF 2.3 4区 物理与天体物理 Q3 PHYSICS, CONDENSED MATTER
Deenbandhu Sharma, S K Sharma
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引用次数: 0

Abstract

Doping B-site with metal ions is an emerging strategy to reduce lead toxicity and enhance the optoelectronic performance of lead halide perovskites. Also, the concentration of metal dopants plays an important role in achieving the desired electrical and optical properties of these halide perovskites. This work presents a simple chemical approach to synthesize pure and Sn2+doped CsPbCl3perovskites at room temperature. The dopant concentration was varied from 1 to 9 mol%. The structural, morphological, optical, thermal, and electrical properties of prepared perovskites are studied in order to check the optimal doping concentration along with to know the improvement in the optoelectronic properties required for LEDs and photovoltaic cells. It was observed that CsPbCl3perovskites exhibit high photoluminescence intensity, blue/violet emission, and high charge carrier mobility (up to 56.3 cm2V s-1) with a reduction in bandgap (up to 2.865 eV) after Sn2+doping.

Sn2+掺杂对改善CsPbCl3钙钛矿电荷输运和发光性能的影响。
金属离子掺杂b位是降低铅毒性和提高卤化铅钙钛矿光电性能的新兴策略。此外,金属掺杂剂的浓度在实现这些卤化物钙钛矿所需的电学和光学性能方面起着重要作用。本文提出了一种在室温下合成纯CsPbCl3钙钛矿和Sn2+掺杂CsPbCl3钙钛矿的简单化学方法。掺杂剂的浓度在1 ~ 9 mol%之间变化。研究制备的钙钛矿的结构、形态、光学、热学和电学性能,以检查最佳掺杂浓度,并了解led和光伏电池所需的光电性能的改善。结果表明,CsPbCl3钙钛矿在Sn2+掺杂后具有较高的光致发光强度、蓝/紫发射强度和较高的载流子迁移率(高达56.3 cm2/V-s),带隙减小(高达2.865 eV)。
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
Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter 物理-物理:凝聚态物理
CiteScore
5.30
自引率
7.40%
发文量
1288
审稿时长
2.1 months
期刊介绍: Journal of Physics: Condensed Matter covers the whole of condensed matter physics including soft condensed matter and nanostructures. Papers may report experimental, theoretical and simulation studies. Note that papers must contain fundamental condensed matter science: papers reporting methods of materials preparation or properties of materials without novel condensed matter content will not be accepted.
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