Laser-doped Silicon Solar Cells by Laser Chemical Processing (LCP) exceeding 20% Efficiency

被引:0
|
作者
Kray, D. [1 ]
Aleman, M. [1 ]
Fell, A. [1 ]
Hopman, S. [1 ]
Mayer, K. [1 ]
Mesec, M. [1 ]
Mueller, R. [1 ]
Willeke, G. P. [1 ]
Glunz, S. W. [1 ]
Bitnar, B. [2 ]
Neuhaus, D. -H. [2 ]
Luedemann, R. [2 ]
Schlenker, T. [3 ]
Manz, D. [3 ]
Bentzen, A. [4 ]
Sauar, E. [4 ]
Pauchard, A. [5 ]
Richerzhagen, B. [5 ]
机构
[1] Fraunhofer Inst Solar Energy Syst, Heidenhofstr 2, D-79110 Freiburg, Germany
[2] Deutsche Cell GmbH,, D-09599 Freiberg, Germany
[3] Manz Automat AG, D-72768 Reutlingen, Germany
[4] REC ASA, Sandvika, Norway
[5] Synova SA, Lausanne, Switzerland
关键词
D O I
暂无
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 introduction of selective emitters underneath the front contacts of solar cells can considerably increase the cell efficiency. Thus, cost-effective fabrication methods for this process step would help to reduce the cost per W-p of silicon solar cells. Laser Chemical Processing (LCP) is based on the waterjet-guided laser (LaserMicroJet (R)) developed and commercialized by Synova S.A., but uses a chemical jet. This technology is able to perform local diffusions at high speed and accuracy without the need of masking or any high-temperature step of the entire wafer. We present experimental investigations on simple device structures to choose optimal laser parameters for selective emitter formation. These parameters are used to fabricate high-efficiency oxide-passivated LFC solar cells that exceed 20% efficiency.
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页码:2025 / +
页数:2
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