Optically detected spin and spin-orbital resonance studies of CdSe/CdS core-shell nanocrystals

被引：4

作者：

Glozman, A ^{[1
]}

Lifshitz, E

机构：

[1] Technion Israel Inst Technol, Dept Chem, IL-32000 Haifa, Israel

[2] Technion Israel Inst Technol, Inst Solid State, IL-32000 Haifa, Israel

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2001年 / 15卷 / 1-2期

关键词：

spin; spin-orbital resonance; nanocrystal; CdSe/CdS;

D O I：

10.1016/S0928-4931(01)00226-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The luminescence spectrum of CdSe/CdS core-shell nanocrystals contains a dominant exciton band located at the CdSe core and an additional weak non-excitonic band, associated with trapped carriers. The present paper describes our efforts to identify the influence of CdSe/CdS interfaces on the localization of the photogenerated species, utilizing optically detected magnetic spin and spin-orbit resonance spectroscopy (ODMR). The spin resonance (SR) spectrum showed two resonance signals: the first associated with a trapped hole in a symmetric site within the core, and a second, corresponding to trapped electrons in an anisotropic interface defect site. The spin-orbital resonance (SOR) signals data is presented. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：17 / 19

页数：3

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