+Advanced Search
Home > Archive>Volume 41, Issue 2, 2022 >377-383. DOI:10.11972/j.issn.1001-9014.2022.02.001
PDF HTML XML Export Cite reminder
The band gap regulation of HgxCd1-xTe quantum dots by ion exchange and their near-infrared self-absorption characteristics
CSTR:
[cstr]
Author:
Affiliation:

1.School of Materials Science and Engineering， Shanghai Institute of Technology， Shanghai 201418， China;2.Key Laboratory of Infrared Imaging Materials and Devices，Shanghai Institute of Technical Physics，Chinese Academy of Sciences，Shanghai 200083，China

Clc Number:

O43

Fund Project:

the Open Foundation of Key Laboratory of Infrared Imaging Materials and Detectors (IIMDKFJJ-19-01), the Shanghai Natural Science Foundation (20ZR1455400)

  • Article
    • | |
  • Metrics
    • |
  • Reference
    • |
  • Related
    • |
  • Cited by
    • | |
  • Comments
    Abstract:

    In this paper， monodispersed CdTe quantum dots are synthesized by soft chemical method. Meanwhile， mercury cadmium telluride （HgxCd1-xTe） quantum dots with the quasi continuous visible to near-infrared spectrum are prepared by ion exchange adjusting the concentration of Hg2+. The variable temperature photoluminescence and self-absorption characteristics of near-infrared Hg0.33Cd0.67Te quantum dots are deeply analyzed. The results indicate that the fluorescence intensity of HgxCd1-xTe quantum dots decreases linearly with the increase of temperature （0～100 ℃）. The spectral line broad and the peak position has a red-shift （12 nm）. The partial overlap of absorption and emission spectra of quantum dots leads to self-absorption. The increase of self-absorption results in decrease of photoluminescence intensity while the concentration of quantum dots increases.

    Reference
    Related
    Cited by
Get Citation

FANG Shi-Yu, LIU Zhen-Yu, JIN Jia-Jie, SHI Ji-Chao, FANG Yong-Zheng, SUN Chang-Hong, YE Zhen-Hua, LIU Yu-Feng. The band gap regulation of HgxCd1-xTe quantum dots by ion exchange and their near-infrared self-absorption characteristics[J]. Journal of Infrared and Millimeter Waves,2022,41(2):377~383

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:August 05,2021
  • Revised:March 31,2022
  • Adopted:September 07,2021
  • Online: March 31,2022
Article QR Code
You are the first Visitors
Governing Body：中国科学院
Organizer：中国科学院上海技术物理研究所，中国光学学会
Address：上海市玉田路500号 Phone：021-25051553
51La
Journal of Infrared and Millimeter Waves ® 2025 All Rights Reserved