Electrochemistry
Online ISSN : 2186-2451
Print ISSN : 1344-3542
Comprehensive Papers
Advances in Colloidal I-III-VI2-Based Semiconductor Quantum Dots toward Tailorable Photofunctional Materials
Tatsuya KAMEYAMA
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ジャーナル オープンアクセス

2018 年 86 巻 6 号 p. 291-297

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Group I-III-VI2 semiconductor-based quantum dots, such as AgInS2, CuInS2 and their solid solution with ZnS, have recently been reported to show intense photoluminescence, the wavelength of which is tunable in a wide range from visible to near-infrared (NIR) light regions by controlling their chemical composition and/or size. Due to their low toxicity and tunable optical properties, these multinary semiconductor quantum dots (QDs) have been intensively developed as alternative materials to conventional Cd- and Pb-based QDs for applications to photoluminescent devices, photocatalysts, quantum dot solar cells, and biological imaging materials. In this review, the recent progress in the photofunctionality of I-III-VI2-based semiconductor QDs prepared by the colloidal method is outlined with foucus on two advances: (1) extension of the photoluminescence wavelength to NIR light for in vivo biological imaging and (2) improvement of photoenergy conversion properties by nanostructure control of QDs.

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© 2018 The Electrochemical Society of Japan
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