Applications of Fiber Optics Sensors in Seismology
Simulation Analysis of Fiber Optic Magnetic Sensor
Enhancement of excited-state emission of InAs/GaAs quantum dots with larg...
Self-Powered SnS1-xSex Alloy/Silicon Heterojunction Photodetectors with H...
Mode and lasing characteristics for scissor-FP hybrid-cavity semiconducto...
14 mu m quantum cascade lasers based on diagonal transition and nonresona...
Exploring the Designs of p-Type Piezoelectric FinFETs Based on NEGF Trans...
Insulator-metal transition and ultrafast crystallization of Ga40Sb60/Sn15...
半導體學報2019年第11期目錄
Cesium Lead Inorganic Solar Cell with Efficiency beyond 18% via Reduced C...
官方微信
友情鏈接

Large Band Edge Tunability in Colloidal Nanoplatelets

2019-11-01

Authors: Zhou, QF; Cho, YS; Yang, SY; Weiss, EA; Berkelbach, TC; Darancet, P

NANO LETTERS

Volume: 19 Issue: 10 Pages: 7124-7129 Published: OCT 2019 Language: English Document type: Article

DOI: 10.1021/acs.nanolett.9b02645

Abstract:

We study the impact of organic surface ligands on the electronic structure and electronic band edge energies of quasi-two-dimensional (2D) colloidal cadmium selenide nanoplatelets (NPLs) using density functional theory. We show how control of the ligand and ligand-NPL interface dipoles results in large band edge energy shifts, over a range of 5 eV for common organic ligands with a minor effect on the NPL band gaps.Using a model self-energy to account for the dielectric contrast and an effective mass model of the excitons, we show that the band edge tunability of NPLs together with the strong dependence of the optical band gap on NPL thickness can lead to favorable photochemical and optoelectronic properties.

Full Text: https://pubs.acs.org/doi/10.1021/acs.nanolett.9b02645



關于我們
下載視頻觀看
聯系方式
通信地址

北京市海淀區清華東路甲35號 北京912信箱 (100083)

電話

010-82304210/010-82305052(傳真)

E-mail

[email protected]

交通地圖
版權所有 ? 中國科學院半導體研究所

備案號:京ICP備05085259號 京公網安備110402500052 中國科學院半導體所聲明

快乐十分历史开奖 2008奥运会足球比分 炒股手机推荐 新疆35选7 11选5 好运彩3 内蒙古十一选五 股票指数是什么 东华软件股票 期货配资ˉ杨方配资平台 2007上证指数最高 广西快乐双彩 快乐双彩 广东26选5 山西快乐10分 广西快乐十分 北单比分3串1有中50万的吗