On the size and temperature dependence of the energy gap in cadmium-selenide quantum dots embedded in fluorophosphate glasses

Zh. O. Lipatova; E. V. Kolobkova; A. N. Babkina; N. V. Nikonorov

doi:10.1134/S1063782617030150

On the size and temperature dependence of the energy gap in cadmium-selenide quantum dots embedded in fluorophosphate glasses

作者: Lipatova Z.O.¹, Kolobkova E.V.¹, Babkina A.N.¹, Nikonorov N.V.¹
隶属关系:
1. ITMO University
期: 卷 51, 编号 3 (2017)
页面: 326-328
栏目: Semiconductor Structures, Low-Dimensional Systems, and Quantum Phenomena
URL: https://bakhtiniada.ru/1063-7826/article/view/199579
DOI: https://doi.org/10.1134/S1063782617030150
ID: 199579

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The temperature and size dependences of the energy gap in CdSe quantum dots with diameters of 2.4, 4.0, and 5.2 nm embedded in fluorophosphate glasses are investigated. It is shown that the temperature coefficient of the band gap dE_g/dT in the quantum dots differs from the bulk value and depends strictly on the dot size. It is found that, furthermore, the energy of each transition in these quantum dots is characterized by an individual temperature coefficient dE/dT.