Simulation Study of Multilayer Si/SiC Quantum Dot Superlattice for Solar Cell Applications

Yi Chia Tsai; Ming Yi Lee; Yiming Li; Mohammad Maksudur Rahman; Seiji Samukawa

doi:10.1109/LED.2016.2561205

Simulation Study of Multilayer Si/SiC Quantum Dot Superlattice for Solar Cell Applications

Yi Chia Tsai, Ming Yi Lee, Yiming Li, Mohammad Maksudur Rahman, Seiji Samukawa

Innovative Energy Research Center

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

This letter presents a computational study on the band profile of Si/SiC quantum dot (QD) superlattice for solar cell devices and the theoretical conversion efficiency. We find that both the miniband energy of QD superlattice and the conversion efficiency of QD solar cell highly correlate to the space among layers and the number of layers. When the distance between layers is >2 nm, the impact of the number of layers on the tunable ground-state energy bandwidth is weakened. The conversion efficiency increases as the layer distance decreases; however, when the number of layers is greater than 4, the increasing rate of conversion efficiency declines.

Original language	English
Article number	7463544
Pages (from-to)	758-761
Number of pages	4
Journal	IEEE Electron Device Letters
Volume	37
Issue number	6
DOIs	https://doi.org/10.1109/LED.2016.2561205
Publication status	Published - 2016 Jun

Keywords

Conversion efficiency.
Layer distance
Miniband
Multilayer
Si/SiC Quantum dot
Solar cell
Superlattice

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/LED.2016.2561205

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title = "Simulation Study of Multilayer Si/SiC Quantum Dot Superlattice for Solar Cell Applications",

abstract = "This letter presents a computational study on the band profile of Si/SiC quantum dot (QD) superlattice for solar cell devices and the theoretical conversion efficiency. We find that both the miniband energy of QD superlattice and the conversion efficiency of QD solar cell highly correlate to the space among layers and the number of layers. When the distance between layers is >2 nm, the impact of the number of layers on the tunable ground-state energy bandwidth is weakened. The conversion efficiency increases as the layer distance decreases; however, when the number of layers is greater than 4, the increasing rate of conversion efficiency declines.",

keywords = "Conversion efficiency., Layer distance, Miniband, Multilayer, Si/SiC Quantum dot, Solar cell, Superlattice",

author = "Tsai, {Yi Chia} and Lee, {Ming Yi} and Yiming Li and Rahman, {Mohammad Maksudur} and Seiji Samukawa",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.",

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AU - Tsai, Yi Chia

AU - Lee, Ming Yi

AU - Li, Yiming

AU - Rahman, Mohammad Maksudur

AU - Samukawa, Seiji

PY - 2016/6

Y1 - 2016/6

N2 - This letter presents a computational study on the band profile of Si/SiC quantum dot (QD) superlattice for solar cell devices and the theoretical conversion efficiency. We find that both the miniband energy of QD superlattice and the conversion efficiency of QD solar cell highly correlate to the space among layers and the number of layers. When the distance between layers is >2 nm, the impact of the number of layers on the tunable ground-state energy bandwidth is weakened. The conversion efficiency increases as the layer distance decreases; however, when the number of layers is greater than 4, the increasing rate of conversion efficiency declines.

AB - This letter presents a computational study on the band profile of Si/SiC quantum dot (QD) superlattice for solar cell devices and the theoretical conversion efficiency. We find that both the miniband energy of QD superlattice and the conversion efficiency of QD solar cell highly correlate to the space among layers and the number of layers. When the distance between layers is >2 nm, the impact of the number of layers on the tunable ground-state energy bandwidth is weakened. The conversion efficiency increases as the layer distance decreases; however, when the number of layers is greater than 4, the increasing rate of conversion efficiency declines.

KW - Conversion efficiency.

KW - Layer distance

KW - Miniband

KW - Multilayer

KW - Si/SiC Quantum dot

KW - Solar cell

KW - Superlattice

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Simulation Study of Multilayer Si/SiC Quantum Dot Superlattice for Solar Cell Applications

Abstract

Keywords

ASJC Scopus subject areas

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