A comparative study of BSF layers for GaAs-based single-junction or multijunction concentrator solar cells

被引：37

作者：

Galiana, Beatriz ^{[1
]}

Rey-Stolle, Ignacio ^{[1
]}

Baudrit, Mathieu ^{[1
]}

Garcia, Ivan ^{[1
]}

Algora, Carlos ^{[1
]}

机构：

[1] Univ Politecn Madrid, Inst Energia Solar, ETSI Telecommunicat, E-28040 Madrid, Spain

来源：

SEMICONDUCTOR SCIENCE AND TECHNOLOGY | 2006年 / 21卷 / 10期

关键词：

D O I：

10.1088/0268-1242/21/10/003

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：

An effective back surface field is a key structural element for a high-efficiency GaAs concentrator solar cell, either in a multijunction or in a single-junction device. In this paper, several BSF materials are analysed, namely: (1) p(++)GaAs(Zn), (2) p(+)Ga(0.5)In(0.5)P(Zn) and (3) p(++)Al(0.2)Ga(0.8)As(C). The results of the comparison demonstrate that the best option is C-doped Al0.2Ga0.8As, which exhibits a low series resistance and behaves as an excellent minority carrier mirror; p(++)GaAs(Zn) shows reduced minority carrier mirror properties resulting from Zn diffusion and p(+)Ga(0.5)In(0.5)P(Zn) is shown to produce important series resistance problems because of an unfavourable heterojunction with GaAs.

引用

页码：1387 / 1392

页数：6

共 26 条

[1] A GaAs solar cell with an efficiency of 26.2% at 1000 suns and 25.0% at 2000 suns [J].

Algora, C ;

Ortiz, E ;

Rey-Stolle, I ;

Díaz, V ;

Peña, R ;

Andreev, VM ;

Khvostikov, VP ;

Rumyantsev, VD .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 2001, 48 (05) :840-844

[2]

ALGORA C, 2005, P 20 EUR PHOT C EXH

[3]

ALGORA C, 2006, UNPUB ASME J SOLAR E

[4]

[Anonymous], 2005, Proc. 20th Eur. Photovoltaic Solar Energy Conf

[5]

[Anonymous], P 17 IEEE PHOT SPEC

[6]

BAUDRIT M, 2005, P 5 NUM SIM OPT DEV

[7] PROJECTIONS OF GAAS SOLAR-CELL PERFORMANCE LIMITS BASED ON TWO-DIMENSIONAL NUMERICAL-SIMULATION [J].

DEMOULIN, PD ;

LUNDSTROM, MS .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 1989, 36 (05) :897-905

[8] BACK-SURFACE FIELD DESIGN FOR N+P GAAS CELLS [J].

DEMOULIN, PD ;

LUNDSTROM, MS ;

SCHWARTZ, RJ .

SOLAR CELLS, 1987, 20 (03) :229-236

[9]

FRIEDMAN DJ, 1991, IEEE PHOT SPEC CONF, P358, DOI 10.1109/PVSC.1991.169238

[10] A 3-D model for concentrator solar cells based on distributed circuit units [J].

Galiana, B ;

Algora, C ;

Rey-Stolle, I ;

Vara, IG .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 2005, 52 (12) :2552-2558

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