...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chinese science bulletin >Preparation of PbS nanoparticles templated from perovskite Langmuir-Blodgett film
【24h】

Preparation of PbS nanoparticles templated from perovskite Langmuir-Blodgett film

机译：以钙钛矿Langmuir-Blodgett膜为模板的PbS纳米颗粒的制备

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

Recently there have been considerable interests in the production of semiconductor nanoparticles due to their unique properties and potential applications in the fields of catalysis, electron, biological labeling diagnostics, light emitting diodes, electro-luminescent devices, photovoltaic devices, lasers, and single-electron transistors. For their preparation, a variety of templates have been employed, including solutions, poly electrolytes, bilayer lipid membranes'-7'1, polymers'81, monolayers at air/water interface and Langmuir-Blodgett (LB) films'101. Among them, because of its well-defined structure and controllable thickness, LB film has been widely used to template construction of nanoparticles'11]. But for traditional LB films, multilayer structures are united mainly with van der Waals force and cannot be maintained well after gas-solid reaction due to low mechanical stability. To solve this problem, fabricating LB films from molecules which can be self-organized into organic-inorganic hybrids is a good choice because it provides an exciting opportunity to combine much useful attributes of organic and inorganic materials within a single molecular scale composition and a more stable film structure can be formed due to chemical bonding1141. In this report, PbCl-based perovskite type LB films are prepared and used as templates to produce lead sulfide nanoparticles, which is useful for a variety of applications, like IR detectors and Pb~(2+) ion-selective sensors1151. We demonstrate the formation of PbS nanoparticles after reacting such films with H_2S gas and get different morphologies by controlling the surface pressure for film deposition.
机译：近年来，由于其在催化，电子，生物标记诊断，发光二极管，电致发光器件，光伏器件，激光器和单电子领域的独特性质和潜在应用，在半导体纳米颗粒的生产中引起了极大的兴趣。晶体管。对于它们的制备，已经使用了多种模板，包括溶液，聚电解质，双层脂质膜'-7'1，聚合物'81，空气/水界面的单层膜和Langmuir-Blodgett（LB）膜'101。其中，由于LB膜结构明确，厚度可控，已被广泛用于纳米颗粒的模板构建[11]。但是对于传统的LB薄膜，多层结构主要是通过范德华力结合在一起的，由于机械稳定性低，在气固反应后不能很好地保持。为了解决这个问题，从可以自我组织为有机-无机杂化分子的分子制备LB膜是一个不错的选择，因为它提供了令人兴奋的机会，可以将有机和无机材料的许多有用属性整合到一个分子规模的组合物中，甚至更多。通过化学键合1141，可以形成稳定的膜结构。在此报告中，制备了基于PbCl的钙钛矿型LB膜，并将其用作生产硫化铅纳米颗粒的模板，可用于多种应用，例如IR检测器和Pb〜（2+）离子选择性传感器1151。我们证明了这种膜与H_2S气体反应后PbS纳米颗粒的形成，并通过控制膜沉积的表面压力获得了不同的形貌。

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