24 April 2018 Preparation of low-toxic Zn-Ag-In-Te quantum dots with tunable near-IR emission toward optical applications
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Proceedings Volume 10712, Optical Manipulation Conference; 107121M (2018) https://doi.org/10.1117/12.2317057
Event: SPIE Structured Light, 2018, Yokohama, Japan
Abstract
Semiconductor quantum dots (QDs) composed of ZnTe-AgInTe2 solid solution ((AgIn)xZn2(1-x)Te2, ZAITe) were synthesized by a thermal reaction of corresponding metal acetates and a Te precursor in 1-dodecanethiol. TEM observations revealed that rod-shaped QDs with width of ca. 4 nm and length of ca. 16 nm were formed regardless of chemical composition of particles, x value. The absorption onset and the band-edge PL peak energy were enlarged from 1.13 to 1.53 eV and from 1.23 eV to 1.53 eV, respectively, with a decrease in x from 1.0 to 0.25. The observed optical properties of ZAITe QDs were largely tunable in the near-IR region , being suitable for optical applications.
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Tatsuya Kameyama, Tatsuya Kameyama, Kouta Sugiura, Kouta Sugiura, Yujiro Ishigami, Yujiro Ishigami, Takahisa Yamamoto, Takahisa Yamamoto, Susumu Kuwabata, Susumu Kuwabata, Tomoki Okuhata, Tomoki Okuhata, Naoto Tamai, Naoto Tamai, Tsukasa Torimoto, Tsukasa Torimoto, } "Preparation of low-toxic Zn-Ag-In-Te quantum dots with tunable near-IR emission toward optical applications ", Proc. SPIE 10712, Optical Manipulation Conference, 107121M (24 April 2018); doi: 10.1117/12.2317057; https://doi.org/10.1117/12.2317057
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