...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Optical Materials >Solution-Processed Perovskite Microdisk for Coherent Light Emission
【24h】

Solution-Processed Perovskite Microdisk for Coherent Light Emission

机译：溶液处理的钙钛矿微盘用于相干发光

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

High-quality semiconductor microdisks (MDs) are of crucial importance for realizing on-chip coherent light sources. However, the fabrication of all-inorganic semiconductor circular or circular-like microdisks (CMDs) with suitable size for optoelectronic applications is still complex and expensive. Herein, a facile ligand-free antisolvent-assisted growth method is used to synthesize high-quality Cs4PbBr6 MDs with tunable size and morphology, which is evolved from rhombohedral to octahedral, hexagonal-like, and circular-like MDs based on Cl-containing antisolvents. Significantly, this is the first time that large semiconductor CMDs are synthesized from solution self-assembled growth at room temperature. These Cs4PbBr6 MDs show high-efficient and stable green emission (522 nm), which should be attributed to the first-order excitonic emission from embedded CsPbBr3 nanocrystals (NCs). The distribution of CsPbBr3 NCs is verified by lattice fringe, crystal data refinement, and time-resolved photoluminescence analysis. These CsPbBr3-in-Cs4PbBr6 CMDs are demonstrated to hold outstanding two-photon pumped coherent light emission ability with a remarkably low threshold (400 mu J cm(-2)). These findings suggest CsPbBr3-in-Cs4PbBr6 MDs have excellent light emission capability and stability toward practical optoelectronic applications, and their tunable morphology and size indicate that solution method is feasible for the fabrication of semiconductor CMDs.
机译：高质量的半导体微盘（MD）对于实现芯片上相干光源至关重要。然而，具有适合于光电应用的尺寸的全无机半导体圆形或类圆形微盘（CMD）的制造仍然是复杂且昂贵的。本文中，使用一种简便的无配体抗溶剂辅助生长方法来合成具有可变大小和形态的高品质Cs4PbBr6 MD，其基于含Cl的反溶剂从菱形向八面体，六角形和圆形MD演化。 。重要的是，这是第一次通过室温下溶液自组装生长合成大型半导体CMD。这些Cs4PbBr6 MD显示出高效且稳定的绿色发射（522 nm），这应归因于嵌入的CsPbBr3纳米晶体（NC）的一阶激子发射。 CsPbBr3 NCs的分布通过晶格条纹，晶体数据细化和时间分辨光致发光分析进行了验证。这些CsPbBr3-in-Cs4PbBr6 CMD被证明具有出色的双光子泵浦相干发光能力，且阈值非常低（400μJ cm（-2））。这些发现表明CsPbBr3-in-Cs4PbBr6 MDs具有优异的发光能力和对实际光电应用的稳定性，并且它们的可调谐形态和尺寸表明溶液法对于半导体CMD的制造是可行的。

著录项

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