澳门美高梅线路登录_官网(欢迎您!!)

官方微信
友情链接

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



关于我们
下载视频观看
联系方式
通信地址

北京市海淀区清华东路甲35号 北京912信箱 (100083)

电话

010-82304210/010-82305052(传真)

E-mail

semi@semi.ac.cn

交通地图
版权所有 ? mgm美高梅线路

备案号:京ICP备05085259号 京公网安备110402500052 中国科学院半导体所声明