Influence of solder pads to PERC solar cells for module integration

被引：11

作者：

Kiefer, Fabian ^{[1
]}

Brendemuehl, Till ^{[1
]}

Berger, Miriam ^{[1
]}

Lohse, Anja ^{[1
]}

Kirstein, Sabine ^{[1
]}

Braun, Nadja ^{[1
]}

Lehr, Martin ^{[1
]}

Heinemeyer, Frank ^{[1
]}

Jung, Verena ^{[1
]}

Morlier, Arnaud ^{[1
]}

Blankemeyer, Susanne ^{[1
]}

Kunze, Iris ^{[1
]}

Winter, Renate ^{[1
]}

Harder, Nils-Peter ^{[1
]}

Dullweber, Thorsten ^{[1
]}

Koentges, Marc ^{[1
]}

Brendel, Rolf ^{[1
]}

机构：

[1] Inst Inst Solar Energy Res Hamelin ISFH, D-31860 Emmerthal, Germany

来源：

PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON CRYSTALLINE SILICON PHOTOVOLTAICS (SILICONPV 2013) | 2013年 / 38卷

关键词：

Solar Cells; PERC; Solder Pads; Metallisation; PERC PV module;

D O I：

10.1016/j.egypro.2013.07.291

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：

The majority of screen printed solar cells has silver pads at the rear side to enable soldering for the module manufacturing. The pads increase the recombination at the silicon/metal interface due to the absence of a back surface field (BSF) at the solder pads. This reduces the efficiency of full-area Al-BSF solar cells. For passivated emitter and rear cells (PERC), a large area fraction of the rear side is covered with the passivation layer. When using specially designed Ag pastes for the rear side of PERC cells, the passivation of this layer is maintained, and the rear recombination is reduced. A comparison of solar cells with and without solder pads confirms that there is no loss in solar cell performance, both cell types achieve an efficiency of 19.6%. We investigate the influence of solder pads to PERC solar cells by calculating the effective rear surface recombination. The calculations confirm that there is a loss in open circuit voltage of less than 2 mV due to the solder pads. A 54-cell PERC PV module is manufactured. The cell-to-module loss reveals that the module process is still to be optimized. Comparable modules made from 9 solar cells lost less than 1% relative in all J-V parameters after a 1000 h damp-heat test. (c) 2013 The Authors. Published by Elsevier Ltd.

引用

页码：368 / 374

页数：7

共 10 条

[1] [Anonymous], 50461 DIN EN
[2] Campe H. V., 2012, 27th European Photovoltaic Solar Energy Conference and Exhibition. Proceedings, P1150
[3] Inductively coupled plasma chemical vapour deposited AlOx/SiNy layer stacks for applications in high-efficiency industrial-type silicon solar cells
Dullweber, T.
Kranz, C.
Beier, B.
Veith, B.
Schmidt, J.
Roos, B. F. P.
Hohn, O.
Dippell, T.
Brendel, R.
[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2013, 112 : 196 - 201
[4] Dullweber T., 2012, PHOTOVOLTAICS INT, V17, P72
[5] Engelhart P., 2011, Proceedings of the 26th European International Conference on Photovoltaic Solar Energy, P821
[6] Fischer B., 2003, THESIS U KONSTANZ GE
[7] Green M. A., 1982, SOLAR CELLS OPERATIN, P161
[8] IEC, IEC 61215, V2nd
[9] Analytical model for the diode saturation current of point-contacted solar cells
Plagwitz, H
Brendel, R
[J]. PROGRESS IN PHOTOVOLTAICS, 2006, 14 (01): : 1 - 12
[10] Ramspeck Klaus, 2012, 27th European Photovoltaic Solar Energy Conference and Exhibition. Proceedings, P861

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