A Low-Temperature Synthesis for Organically Soluble HgTe Nanocrystals Exhibiting Near-Infrared Photoluminescence and Quantum Confinement

Marc-Oliver M.Piepenbrock; Tom Stirner; Stephen M.Kelly; Mary ONeill

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A Low-Temperature Synthesis for Organically Soluble HgTe Nanocrystals Exhibiting Near-Infrared Photoluminescence and Quantum Confinement

机译：低温合成有机可溶的HgTe纳米晶体的近红外光致发光和量子约束。

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A new low-temperature,one-pot method is introduced for the preparation of organically passivated HgTe nanocrystals,without the use of highly toxic precursors.The nanocrystals show bright photo-luminescence in the infrared telecommunication windows about 1300 and 1550 nm with quantum efficiencies between 55 and 60%.They have a zinc blende structure with a mean particle diameter of 3.4 nm,thus exhibiting quantum confinement effects.Particle growth is self-limited by temperature quenching,so a narrow size distribution is obtained.The measured size of the particles agrees with calculations using the pseudopotential method.

机译：在不使用剧毒前体的情况下，引入了一种新型的低温一锅法制备有机钝化的HgTe纳米晶体。该纳米晶体在约1300和1550 nm的红外通信窗口中显示出明亮的光致发光，且量子效率为分别为55％和60％。它们具有平均粒径为3.4 nm的锌共混物结构，因此表现出量子约束效应。颗粒的生长受温度淬火的自限制，因此获得了窄的尺寸分布。同意使用伪电位法进行的计算。

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《Journal of the American Chemical Society》 |2006年第21期|p.7087-7090|共4页
作者
Marc-Oliver M.Piepenbrock; Tom Stirner; Stephen M.Kelly; Mary ONeill;
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作者单位

Contribution from the Departments of Chemistry and Physics,University of Hull,Hull HU6 7RX,United Kingdom;

Contribution from the Departments of Chemistry and Physics,University of Hull,Hull HU6 7RX,United Kingdom;

Contribution from the Departments of Chemistry and Physics,University of Hull,Hull HU6 7RX,United Kingdom;

Contribution from the Departments of Chemistry and Physics,University of Hull,Hull HU6 7RX,United Kingdom;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类化学;
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4. Strong photoluminescence in the near-infrared from colloidally-prepared HgTe nanocrystals [C] . M.T. Harrison, S.V. Kershaw, M.G. Burt, Symposium on microcrystalline and nanocrystalline semiconductors . 1999

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A Low-Temperature Synthesis for Organically Soluble HgTe Nanocrystals Exhibiting Near-Infrared Photoluminescence and Quantum Confinement

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