...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of materials science >Optoelectronic properties of facile synthesized orthorhombic cesium lead bromide (CsPbBr_3)
【24h】

Optoelectronic properties of facile synthesized orthorhombic cesium lead bromide (CsPbBr_3)

机译：化合成正交铯铅溴化溴化铯的光电性质（CSPBBR_3）

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

CsPbBr_3 has been synthesized via a wet chemical technique instead of colloidal hot injection route. Crystalline structure and chemical composition of the material have been assured by Rietveld refinement and energy dispersive X-ray spectroscopy. Photoresponse capability of CsPbBr_3 nanocrystal in cubic phase has been already explored. Here, intrinsic optoelectronic properties of orthorhombic CsPbBr_3 have been investigated in detail. A prototype photode-tector has been fabricated on a transparent conducting oxide-coated glass by using silver as the other electrode material. The photo-responsibility of CsPbBr_3 arises due to the combined effect of electron-hole pair generation and trapping within material and recombination. The non-linearity of Ⅰ-Ⅴ characteristics clearly reveals the formation of well-established Schottky contact at perovskite-ITO junction. Responsivity of the detector increases from 1.4 to 1.73 mA W~(-1) after enhancing the irradiance from 25 to 100 mW cm~(-2) at 8 V bias voltages. Linear dynamic range has been accounted to study the linear photosensitivity of the device. In order to investigate the stability and reversibility, photocurrent has been measured under ON/OFF condition of frequency 20 s. The quantitative contribution of polycrystalline grain and grain boundary to charge mobilization has been evaluated by fitting the Cole-Cole plot under different solar intensities.
机译：CSPBBR_3已通过湿化学技术而不是胶体热注入路线合成。通过RIETVELD改进和能量分散X射线光谱确保了材料的结晶结构和化学成分。已经探索了CSPBBR_3纳米晶体在立方阶段的光响应能力。这里，已经详细研究了邻苯基球蛋白CSPBBR_3的内在光电性质。通过使用银作为另一个电极材料，在透明导电氧化物涂覆的玻璃上制造了原型光电局。 CSPBBR_3的光责任由于电子 - 空穴对在材料和重组内捕获的综合效应而产生。 Ⅰ-Ⅳ特性的非线性清楚地揭示了在Perovskite-ITO交界处的良好建立的肖特基接触的形成。在8 V偏置电压下将25至100 MW CM〜（2）的辐照度增强，检测器的响应性从1.4到1.73 mA W〜（-1）增加。已经考虑了线性动态范围来研究装置的线性光敏性。为了研究稳定性和可逆性，在频率20s的开/关条件下测量了光电流。通过在不同的太阳强度下拟合COLE-COO-CLOT来评估多晶颗粒和晶界对电荷摩擦的定量贡献。

著录项

  • 来源
    《Journal of materials science》 |2020年第19期|17100-17109|共10页
  • 作者

    Prasenjit Maji; Priyabrata Sadhukhan; Sachindranath Das;

  • 作者单位

    Department of Instrumentation Science Jadavpur University Jadavpur Kolkata 700032 India;

    Department of Instrumentation Science Jadavpur University Jadavpur Kolkata 700032 India;

    Department of Instrumentation Science Jadavpur University Jadavpur Kolkata 700032 India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号