Computational Study of InAs/GaAs Quantum Dot Arrays

被引:0
作者
Gomez-Campos, F. M. [1 ]
Rodriguez-Bolivar, S. [1 ]
Luque-Rodriguez, A. [1 ]
Lopez-Villanueva, J. A. [1 ]
Carceller, J. E. [1 ]
机构
[1] Univ Granada, Dept Elect & Tecnol Comp, E-18071 Granada, Spain
来源
2010 14TH INTERNATIONAL WORKSHOP ON COMPUTATIONAL ELECTRONICS (IWCE 2010) | 2010年
关键词
component; Quantum dot; ordered nanostructures; photon absorption coefficient; miniband structure;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this work we have theoretically investigated photon absorption coefficient in ordered InAs/GaAs cubic quantum dot systems. We solved the Schrodinger equation associated with these structures, using a set of 13x13x13 plane waves at 12,167 equally spaced points of the Q space. We investigated the transitions between minibands arising from the conduction band, taking into account the different effective masses in each material in our calculations. The effects of the strain were included by taking a conduction band offset of 0.5 eV, corresponding to strained InAs in GaAs.
引用
收藏
页码:223 / 226
页数:4
相关论文
共 9 条
[1]  
BIR GL, 1960, FIZ TVERD TELA, V2, P2287
[2]  
GOMEZCAMPOS FM, 2010, J APPL PHYS UNPUB, P25318
[3]   INFRARED-ABSORPTION IN SUPERLATTICES - A PROBE OF THE MINIBAND DISPERSION AND THE STRUCTURE OF THE IMPURITY BAND [J].
HELM, M ;
HILBER, W ;
FROMHERZ, T ;
PEETERS, FM ;
ALAVI, K ;
PATHAK, RN .
PHYSICAL REVIEW B, 1993, 48 (03) :1601-1606
[4]   Silicon quantum dot superlattices: Modeling of energy bands, densities of states, and mobilities for silicon tandem solar cell applications [J].
Jiang, CW ;
Green, MA .
JOURNAL OF APPLIED PHYSICS, 2006, 99 (11)
[5]   NONRESONANT CARRIER TRANSPORT THROUGH HIGH-FIELD DOMAINS IN SEMICONDUCTOR SUPERLATTICES [J].
KWOK, SH ;
GRAHN, HT ;
RAMSTEINER, M ;
PLOOG, K ;
PRENGEL, F ;
WACKER, A ;
SCHOLL, E ;
MURUGKAR, S ;
MERLIN, R .
PHYSICAL REVIEW B, 1995, 51 (15) :9943-9951
[6]   Miniband formation in a quantum dot crystal [J].
Lazarenkova, OL ;
Balandin, AA .
JOURNAL OF APPLIED PHYSICS, 2001, 89 (10) :5509-5515
[7]   Production of photocurrent due to intermediate-to-conduction-band transitions:: A demonstration of a key operating principle of the intermediate-band solar cell [J].
Marti, A. ;
Antolin, E. ;
Stanley, C. R. ;
Farmer, C. D. ;
Lopez, N. ;
Diaz, P. ;
Canovas, E. ;
Linares, P. G. ;
Luque, A. .
PHYSICAL REVIEW LETTERS, 2006, 97 (24)
[8]   Quantum-dot infrared photodetectors: Status and outlook [J].
Martyniuk, P. ;
Rogalski, A. .
PROGRESS IN QUANTUM ELECTRONICS, 2008, 32 (3-4) :89-120
[9]   Miniband properties of superlattice quantum dot arrays fabricated by the edge-defined nanowires [J].
Yi, Jong Chang .
MICROELECTRONICS JOURNAL, 2008, 39 (3-4) :369-374