Recent progress in the fields of tuning the band gap of quantum dots

Band gap, which can be tuned by changing the size of quantum dots （QDs） based on the quantum confinement effect, plays a fundamental role in electrical and optical properties of QDs. However, the tuning of the band gap by changing the size results in a series of intrinsic problems, such as the insta...

Full description

Saved in:
Bibliographic Details
Published inScience China. Technological sciences Vol. 55; no. 4; pp. 903 - 912
Main Authors Lei, Da, Shen, YongTao, Feng, YiYu, Feng, Wei
Format Journal Article
LanguageEnglish
Published Heidelberg SP Science China Press 01.04.2012
Subjects
Biomolecules
China
Engineering
Extreme values
Instability
Optical properties
Quantum confinement
Quantum dots
Tuning
不稳定
光学性质
分子结
发展趋势
带隙
调整
量子点
量子限制效应
doping
quantum dots
photoluminescence
alloying
band gap
core-shell
Online AccessGet full text

Cover

More Information
Summary:Band gap, which can be tuned by changing the size of quantum dots （QDs） based on the quantum confinement effect, plays a fundamental role in electrical and optical properties of QDs. However, the tuning of the band gap by changing the size results in a series of intrinsic problems, such as the instability of the extremely small QDs, negative combination with biomolecules because of the large size of QDs, etc. Recently, several new methods have been developed to further study and improve the tuning of the band gap. In this paper, we summarized the recent progress in the fields of tuning the band gap of QDs, including alloyed QDs, core-shell QDs and doped QDs. The review has also prospected the development trend of tuning the band gap as well as their applications.
Bibliography:Band gap, which can be tuned by changing the size of quantum dots （QDs） based on the quantum confinement effect, plays a fundamental role in electrical and optical properties of QDs. However, the tuning of the band gap by changing the size results in a series of intrinsic problems, such as the instability of the extremely small QDs, negative combination with biomolecules because of the large size of QDs, etc. Recently, several new methods have been developed to further study and improve the tuning of the band gap. In this paper, we summarized the recent progress in the fields of tuning the band gap of QDs, including alloyed QDs, core-shell QDs and doped QDs. The review has also prospected the development trend of tuning the band gap as well as their applications.
quantum dots, band gap, photoluminescence, alloying, core-shell, doping
11-5845/TH
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-7321
1869-1900
DOI:10.1007/s11431-011-4717-1