Confined Franz-Keldysh effect in ZnO quantum dots

被引：4

作者：

Xia, Congxin ^{[2
]}

Spector, Harold N. ^{[1
]}

机构：

[1] IIT, Dept Phys, Chicago, IL 60616 USA

[2] Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2010年 / 47卷 / 03期

关键词：

ZnO; Quantum dot; Franz-Keldysh effect; FIELD; ELECTROABSORPTION;

D O I：

10.1016/j.spmi.2009.12.012

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Within the framework of the effective mass approximation, the confined Franz-Keldysh effect is investigated theoretically in a cylindrical ZnO quantum dot (QD). Numerical results show that the application of an electric field can decrease the strength and the threshold energy of the optical absorption coefficient in ZnO QD. There are additional oscillations in the absorption above the effective band gap, which are due to the Franz-Keldysh effect which occurs in the presence of the electric field. Our results also show that the electric field has a more obviously influence on the optical absorption in cylindrical ZnO QD with larger dot height. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：490 / 495

页数：6

共 50 条

[21] A method for characterizing effective intensity of Franz-Keldysh effect in (HgCd)Te detectors
Li, ZD
Ye, YT
Wu, YF
Shu, HH
He, LL
Li, DZ
Wu, ZM
JOURNAL OF INFRARED AND MILLIMETER WAVES, 2001, 20 (05) : 353 - 355
[22] Study of electroreflectance spectrum and Franz-Keldysh effect at Metal-GaAs interfaces
Wang Bin
Xu Xiao-xuan
Qin Zhe
Song Ning
Zhang Cun-zhou
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28 (08) : 1701 - 1704
[23] Stark effect and Franz-Keldysh effect of a quantum wire realized by conjugated polymer chains of a diacetylene 3NPh2
Weiser, Gerhard
Legrand, Laurent
Barisien, Thierry
Al Choueiry, Antoine
Schott, Michel
Dutremez, Sylvain
PHYSICAL REVIEW B, 2010, 81 (12):
[24] Estimation of Impact Ionization Coefficient in GaN by Photomulitiplication Measurement Utilizing Franz-Keldysh Effect
Maeda, Takuya
Narita, Tetsuo
Ueda, Hiroyuki
Kanechika, Masakazu
Uesugi, Tsutomu
Kachi, Tetsu
Kimoto, Tsunenobu
Horita, Masahiro
Suda, Jun
2019 31ST INTERNATIONAL SYMPOSIUM ON POWER SEMICONDUCTOR DEVICES AND ICS (ISPSD), 2019, : 59 - 62
[25] Analysis of modified Franz-Keldysh effect under influence of electronic intraband relaxation phenomena
Kuwamura, Y
Yamada, M
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 1996, 35 (12A): : 6117 - 6125
[26] Pseudospins revealed through the giant dynamical Franz-Keldysh effect in massless Dirac materials
Kim, Youngjae
NPJ QUANTUM MATERIALS, 2024, 9 (01)
[27] Dynamical Franz-Keldysh effect in GaAs/AlGaAs multiple quantum wells induced by single-cycle terahertz pulses
Shinokita, K.
Hirori, H.
Nagai, M.
Satoh, N.
Kadoya, Y.
Tanaka, K.
APPLIED PHYSICS LETTERS, 2010, 97 (21)
[28] Time-resolved dynamical Franz-Keldysh effect produced by an elliptically polarized laser
Otobe, T.
PHYSICAL REVIEW B, 2016, 94 (16)
[29] Franz-Keldysh effect of Ge-on-Si pin diodes at common chip temperatures
Schmid, M.
Kaschel, M.
Gollhofer, M.
Oehme, M.
Werner, J.
Ulbricht, K.
Kasper, E.
Schulze, J.
INTEGRATED PHOTONICS: MATERIALS, DEVICES, AND APPLICATIONS II, 2013, 8767
[30] Electrorefraction beyond excitonic resonance in a GaAs/AlGaAs multiple quantum well structure in the Franz-Keldysh geometry
Wichtowski, M.
PHOTONICS LETTERS OF POLAND, 2020, 12 (04) : 109 - 111

← 1 2 3 4 5 →