Formation of PbSe/CdSe Core/Shell Nanocrystals for Stable Near-Infrared High Photoluminescence Emission

被引：0
|
作者：
Yu Zhang
Quanqin Dai
Xinbi Li
Qingzhou Cui
Zhiyong Gu
Bo Zou
Yiding Wang
William W Yu
机构：
[1] Jilin University,State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering
[2] Worcester Polytechnic Institute,Department of Chemistry and Biochemistry
[3] University of Massachusetts Lowell,Department of Chemistry Engineering
[4] Jilin University,State Key Laboratory of Superhard Materials
来源：
Nanoscale Research Letters | / 5卷
关键词：
PbSe; CdSe; Core–shell; Near infrared; Emission; Nanocrystals;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
PbSe/CdSe core/shell nanocrystals with quantum yield of 70% were obtained by the “successive ion layer adsorption and reaction” technology in solution. The thickness of the CdSe shell was exactly controlled. A series of spectral red shifts with the CdSe shell growth were observed, which was attributed to the combined effect of the surface polarization and the expansion of carriers’ wavefunctions. The stability of PbSe nanocrystals was tremendously improved with CdSe shells.
引用
收藏
相关论文
共 50 条
  • [31] Near-infrared photoluminescence enhancement in Ge/CdS and Ge/ZnS core/shell nanocrystals: Utilizing IV/II-VI semiconductor epitaxy
    Vela-Becerra, Javier
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2015, 249
  • [32] Tunable and Efficient Red to Near-Infrared Photoluminescence by Synergistic Exploitation of Core and Surface Silver Doping of CdSe Nanoplatelets
    Khan, Ali Hossain
    Pinchetti, Valerio
    Tanghe, Ivo
    Dang, Zhiya
    Martin-Garcia, Beatriz
    Hens, Zeger
    Van Thourhout, Dries
    Geiregat, Pieter
    Brovelli, Sergio
    Moreels, Iwan
    CHEMISTRY OF MATERIALS, 2019, 31 (04) : 1450 - 1459
  • [33] Extending the Limit of Low-Energy Photocatalysis: Dye Reduction with PbSe/CdSe/CdS Core/Shell/Shell Nanocrystals of Varying Morphologies under Infrared Irradiation
    Pak, Chaewon
    Woo, Ju Young
    Lee, Kangha
    Kim, Whi Dong
    Yoo, Youngjae
    Lee, Doh C.
    JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (48): : 25407 - 25414
  • [34] Two-Fold Emission From the S-Shell of PbSe/CdSe Core/Shell Quantum Dots
    Grodzinska, Dominika
    Evers, Wiel H.
    Dorland, Renee
    van Rijssel, Jos
    van Huis, Marijn A.
    Meijerink, Andries
    Donega, Celso de Mello
    Vanmaekelbergh, Daniel
    SMALL, 2011, 7 (24) : 3493 - 3501
  • [35] High resolution photoemission study of CdSe and CdSe/ZnS core-shell nanocrystals
    Borchert, H
    Talapin, DV
    McGinley, C
    Adam, S
    Lobo, A
    de Castro, ARB
    Möller, T
    Weller, H
    JOURNAL OF CHEMICAL PHYSICS, 2003, 119 (03): : 1800 - 1807
  • [36] Environmental effects on photoluminescence of highly luminescent CdSe and CdSe/ZnS core/shell nanocrystals in polymer thin films
    Nazzal, AY
    Wang, XY
    Qu, LH
    Yu, W
    Wang, YJ
    Peng, XG
    Xiao, M
    JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (18): : 5507 - 5515
  • [37] Near-Infrared Photoluminescence and Thermal Stability of PbS Nanocrystals at Elevated Temperatures
    Keitel, Robert C.
    Weidman, Mark C.
    Tisdale, William A.
    JOURNAL OF PHYSICAL CHEMISTRY C, 2016, 120 (36): : 20341 - 20349
  • [38] Cation exchange synthesis of uniform PbSe/PbS core/shell tetra-pods and their use as near-infrared photodetectors
    Mishra, N.
    Mukherjee, B.
    Xing, G.
    Chakrabortty, S.
    Guchhait, A.
    Lim, J. Y.
    NANOSCALE, 2016, 8 (29) : 14203 - 14212
  • [39] High-Temperature Photoluminescence of CdSe/CdS Core/Shell Nanoheterostructures
    Diroll, Benjamin T.
    Murray, Christopher B.
    ACS NANO, 2014, 8 (06) : 6466 - 6474
  • [40] Infrared light-emitting diodes based on colloidal PbSe/PbS core/shell nanocrystals
    Hyun, Byung-Ryool
    Marus, Mikita
    Zhong, Huaying
    Li, Depeng
    Liu, Haochen
    Xie, Yue
    Koh, Weon-kyu
    Xu, Bing
    Liu, Yanjun
    Sun, Xiao Wei
    CHINESE PHYSICS B, 2020, 29 (01)
12345