Structure Determination and Homogeneous Optical Properties of CdS/HgS Quantum Dots

A. Mews; U. Banin; A. V. Kadavanich

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Structure Determination and Homogeneous Optical Properties of CdS/HgS Quantum Dots

机译：CdS / HgS量子点的结构测定和均质光学性质

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The structural and optical properties of heterogeneous semiconductor nanoparticles consisting of CdS and HgS are investigated by High Resolution electron Microscopy (HRTEM) and selective spectroscopy like Hole Burning (HB) and Fluorescence Line Narrowing (FLN). The HRTEM study shows that epitaxy is possible in nanocrystals, provided the crystallites have well defined faceted shapes to begin with. From the HB- and FLN experiments homogeneous absorption and fluorescence spectra are calculated. It could be shown that the absorption is coupl- ed to HgS-like phonons (250 cm~-1) whereas the emission frequency is closer to the LO phonon frequency of CdS.

机译：通过高分辨率电子显微镜（HRTEM）和选择性光谱学（如空穴燃烧（HB）和荧光线变窄（FLN））研究了由CdS和HgS组成的异质半导体纳米颗粒的结构和光学性质。 HRTEM研究表明，只要微晶具有明确定义的刻面形状，纳米晶中就可以进行外延。从HB-和FLN实验计算出均匀吸收和荧光光谱。可以证明，吸收与类HgS声子（250 cm〜-1）耦合，而发射频率更接近CdS的LO声子频率。

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来源
《Berichte der Bunsengesellschaft fur Physikalische Chemie》 |1997年第11期|p.1621-1625|共5页
作者
A. Mews; U. Banin; A. V. Kadavanich;
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正文语种 eng
中图分类化学;
关键词
Complex Compounds; Electron Microscopy; Nanocrystal;

机译：复杂化合物;电子显微镜;纳米晶体;

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3. Optically detected magnetic resonance study of CdS/HgS/CdS quantum dot quantum wells [J] . Lifshitz E., Glozman A., Weller H., The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 1999,第33期

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Structure Determination and Homogeneous Optical Properties of CdS/HgS Quantum Dots

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