Exciton escape in CdSe core-shell quantum dots: Implications for the development of nanocrystal solar cells

J. S. de Sousa; J. A. K. Freire; G. A. Farias

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Exciton escape in CdSe core-shell quantum dots: Implications for the development of nanocrystal solar cells

机译：CdSe核-壳量子点中的激子逸出：对纳米晶体太阳能电池发展的启示

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We investigate the tunneling escape of confined excitons in CdSe core-shell quantum dots by means of the time-dependent Schrodinger equation. Our results indicate that obtaining efficient charge extraction strongly depends on the interplay between parameters such as nanocrystal sizes, shell thicknesses, external electric fields, and confinement barrier heights.

机译：我们通过时间相关的薛定inger方程研究了CdSe核壳量子点中受限激子的隧穿逸出。我们的结果表明，获得有效的电荷提取在很大程度上取决于诸如纳米晶体尺寸，壳厚度，外部电场和限制势垒高度等参数之间的相互作用。

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来源
《Physical review》 |2007年第15期|155317.1-155317.7|共7页
作者
J. S. de Sousa; J. A. K. Freire; G. A. Farias;
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作者单位

Unive.rsidade Federal do Ceard, Departamento de Fisica, Caixa Postal 6030, 60455-760 Fortaleza, Ceard, Brazil;

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原文格式 PDF
正文语种 eng
中图分类固体物理学;
关键词
tunneling; excitons and related phenomena; semiconductor-device characterization; design; and modeling;

机译：隧道激子和相关现象;半导体器件表征;设计;和建模;

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1. Aqueous synthesis of colloidal CdSe_xTe_(1-x) - CdS core-shell nanocrystals and effect of shell formation parameters on the efficiency of corresponding quantum dot sensitized solar cells [J] . Marandi M., Abadi S. Hossein Solar Energy . 2020,第Octa期

机译：胶体CDSE_XTE_（1-X） - CDS核 - 壳纳米晶体的水性合成及壳体形成参数对相应量子点敏化太阳能电池效率的影响
2. Three-pulse photon echo induced by the optical transition of excitons in core-shell CdSe/ZnS nanocrystal quantum dots [J] . Shaohua Gong, Guotao Yang, Dongmei Ban, Optical Materials . 2011,第1期

机译：核壳CdSe / ZnS纳米晶体量子点中激子光学跃迁诱导的三脉冲光子回波
3. Ultrafast Charge Separation at the CdSe/CdS Core/Shell Quantum Dot/ Methylviologen Interface: Implications for Nanocrystal Solar Cells [J] . Lars Dworak, Victor V. Matylitsky, Vladimir V. Breus The journal of physical chemistry, C. Nanomaterials and interfaces . 2011,第10期

机译：CdSe / CdS核/壳量子点/甲基紫罗兰界面的超快速电荷分离：对纳米晶体太阳能电池的影响
4. Influence of core-shell interfaces on exciton and multi-exciton dynamics of CdSe-Cd_xZn_(1-x)S quantum dots [C] . Alessandro Minotto, Francesco Todescato, Raffaella Signorini, Conference on nanophotonic materials . 2014

机译：核-壳界面对CdSe-Cd_xZn_（1-x）S量子点的激子和多激子动力学的影响
5. Growth and Characterization of Type-II Submonolayer ZnCdTe/ZnCdSe Quantum Dot Superlattices for Efficient Intermediate Band Solar Cells. [D] . Dhomkar, Siddharth. 2015

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6. Wavefunction Engineering of Type-I/Type-II Excitons of CdSe/CdS Core-Shell Quantum Dots [O] . Yashaswi Nandan, Mohan Singh Mehata -1

机译：CdSe / CdS核壳量子点的I / II型激子的波函数工程
7. Enhanced electron lifetime of CdSe/CdS quantum dot (QD) sensitized solar cells using ZnSe core-shell structure with efficient regeneration of quantum dots [O] . Ahmed, Rasin K, Zhao, Long, Mozer, Attila J, 2015

机译：使用ZnSe核壳结构并有效再生量子点，提高了CdSe / CdS量子点（QD）敏化太阳能电池的电子寿命

Exciton escape in CdSe core-shell quantum dots: Implications for the development of nanocrystal solar cells

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