Internal polarization electric field effects on the efficiency of InN/InxGa1-xN multiple quantum dot solar cells

被引：20

作者：

El Aouami, A. ^{[1
]}

Bikerouin, M. ^{[1
,2
]}

El-Yadri, M. ^{[1
]}

Feddi, E. ^{[1
]}

Dujardin, F. ^{[3
]}

Courel, M. ^{[4
]}

Chouchen, B. ^{[5
]}

Gazzah, M. H. ^{[5
]}

Belmabrouk, H. ^{[6
,7
]}

机构：

[1] Mohammed V Univ Rabat, Lab Matiere Condensee & Sci Interdisciplinaires L, ENSET, Grp Optoelect Semicond & Nanomat, Rabat, Morocco

[2] Int Univ Rabat, Renewable Energy & Adv Mat Lab, Rabat, Morocco

[3] Univ Lorraine, LCP A2MC, F-57000 Metz, France

[4] Univ Guadalajara, Ctr Univ Valles, Carretera Guadalajara Ameca Km 45-5, Ameca 46600, Jalisco, Mexico

[5] Univ Monastir, Fac Sci Monastir, Quantum & Stat Phys Lab, Monastir 5019, Tunisia

[6] Majmaah Univ, Coll Sci, Dept Phys, Al Zulfi 11932, Saudi Arabia

[7] Univ Monastir, Fac Sci Monastir, Elect & Microelect Lab, Monastir 5019, Tunisia

来源：

SOLAR ENERGY | 2020年 / 201卷

关键词：

Solar cell; Photovoltaic conversion efficiency; Internal electric field; Temperature effect; Intermediate level; INTERMEDIATE-BAND;

D O I：

10.1016/j.solener.2020.03.011

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In this work, we investigate the influence of the internal electric field induced by the polarization inside the active region of the p-i-n photodiode on the characteristics of InN/InxGa1-xN quantum dots intermediate band solar cell. Considering the conduction and valence band offsets, the electron and hole energy levels have been determined by solving analytically the corresponding Schrodinger equations. The hole level, usually neglected in similar studies, is taken into account to determine all the intermediate transitions. All parameters of multiple quantum dot solar cells such as open-circuit voltage, short-circuit current density and photovoltaic conversion efficiency are determined as functions of the indium content, the internal electric field, inter-dot distances and dot sizes. Our calculations show that determining the photovoltaic conversion efficiency (eta) without taking into account the internal electric field leads to an overestimation of eta.

引用

页码：339 / 347

页数：9

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