Studies on the electronic and vibrational states of colloidal CdSe/ZnS quantum dots under high pressures

C.T. Yuan; Y.C. Lin; Y.N. Chen; Q.L. Chiu; W.C. Chou; D.S. Chuu; W.H. Chang; H.S. Lin; R.C. Ruaan; C.M. Lin

doi:10.1088/0957-4484/18/18/185402

Studies on the electronic and vibrational states of colloidal CdSe/ZnS quantum dots under high pressures

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Studies on the electronic and vibrational states of colloidal CdSe/ZnS quantum dots under high pressures

C.T. Yuan, Y.C. Lin, Y.N. Chen, Q.L. Chiu, W.C. Chou, D.S. Chuu, W.H. Chang, H.S. Lin, R.C. Ruaan 和 C.M. Lin

Nanotechnology, 卷.18(18), 185402

05/2007

DOI: https://doi.org/10.1088/0957-4484/18/18/185402

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Bioengineering

Chemistry (all)

Materials Science (all)

Mechanics of Materials

Mechanical Engineering

Electrical and Electronic Engineering

The electronic and vibrational states of colloidal core/shell CdSe/ZnS quantum dots are studied at room temperature by using high pressure optical measurements. Pressure-induced quadratic variations of lattice constants can be observed clearly from both photoluminescence (PL) and Raman spectra up to ∼7 GPa. This quadratic relationship is consistent with the theoretical prediction. The pressure coefficients of linear and quadratic terms are 32 meV GPa ^-1 , -1 meV GPa ^-2 for PL and 4.2 cm ^-1 GPa ^-1 , -0.1 cm ^-1 GPa ^-2 for Raman measurements, respectively. © 2007 IOP Publishing Ltd.

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題名: Studies on the electronic and vibrational states of colloidal CdSe/ZnS quantum dots under high pressures
翻譯題名: Studies on the electronic and vibrational states of colloidal CdSe/ZnS quantum dots under high pressures
創作者：: C.T. Yuan (作者) - National Yang Ming Chiao Tung University
Y.C. Lin (作者) - National Yang Ming Chiao Tung University
Y.N. Chen (作者) - National Center for Theoretical Sciences
Q.L. Chiu (作者) - National Yang Ming Chiao Tung University
W.C. Chou (作者) - National Yang Ming Chiao Tung University
D.S. Chuu (作者) - National Yang Ming Chiao Tung University
W.H. Chang (作者) - Chung Yuan Christian University
H.S. Lin (作者) - Department of Chemical and Materials Engineering , National Central University
R.C. Ruaan (作者) - Department of Chemical and Materials Engineering , National Central University
C.M. Lin (作者) - National Tsing Hua University
學術資源類型: 期刊文章
出版日期: 05/2007
出版資訊: Nanotechnology, 卷.18(18), 185402
語言: 英語

Studies on the electronic and vibrational states of colloidal CdSe/ZnS quantum dots under high pressures

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