• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nanoscale >Selective self-assembly and light emission tuning of layered hybrid perovskites on patterned graphene
【24h】

Selective self-assembly and light emission tuning of layered hybrid perovskites on patterned graphene

机译：选择性自组装和发光调优有图案的分层混合钙钛矿石墨烯

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

The emission of light in two-dimensional (2-D) layered hybrid organic lead halide perovskites, namely (R-NH3)(2)PbX4, can be effectively tuned using specific building blocks for the perovskite formation. Herein this behaviour is combined with a non-covalent graphene functionalization allowing excellent selectivity and spatial resolution of the perovskite film growth, promoting the formation of hybrid 2-D perovskite : graphene heterostructures with uniform coverage of up to centimeter scale graphene sheets and arbitrary shapes down to 5 mu m. Using cryo-Raman microspectroscopy, highly resolved spectra of the perovskite phases were obtained and the Raman mapping served as a convenient spatially resolved technique for monitoring the distribution of the perovskite and graphene constituents on the substrate. In addition, the stability of the perovskite phase with respect to the thermal variation was inspected in situ by X-ray diffraction. Finally, time-resolved photoluminescence characterization demonstrated that the optical properties of the perovskite films grown on graphene are not hampered. Our study thus opens the door to smart fabrication routes for (opto)-electronic devices based on 2-D perovskites in contact with graphene with complex architectures.
机译：光发射的二维(2 d)分层混合有机卤素铅钙钛矿,即(R-NH3) (2) PbX4,可以有效地调整钙钛矿使用特定的构建块形成。一个非共价石墨烯功能化让优秀的选择性和空间解决钙钛矿电影增长,促进混合二维钙钛矿的形成:石墨烯异质结构均匀覆盖厘米的石墨烯表和规模任意形状使用cryo-Raman 5μm。显微镜、高光谱的解决钙钛矿阶段获得拉曼映射作为一个方便的空间解决技术监测的分布钙钛矿和石墨烯组成衬底。钙钛矿相的热变化被x光检查现场衍射。光致发光特性演示钙钛矿的光学特性电影上生长石墨烯并不阻碍。研究从而打开门智能制造路线(光电子)基于二维系统的电子设备钙钛矿与石墨烯与复杂架构。

著录项

相似文献

  • 外文文献
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