ISSN:0142-5919    

DOI:10.1080/01425918808914236

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

This paper will present an overview of the surrent status of photovoltaic concentrator system technology from the perspective of the U.S Department of Energy's (DOE) photovoltaic Program. The present and future economic outlook of concentrators is discussed along with a comparative assessment of other photovoltaic options. The research and performance status of the important concentrator system components is reviewed and the present and future research avenues are examined.

ISSN:0142-5919    

DOI:10.1080/01425918808914237

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

The present state-of-the-art of silicon high concentration solar cells is reviewed. Two cell structures, the silicon point contact cell and the microgrooved cell structure, have demonstrated efficiencies of 28% at 150× and 24.7% at 100×, respectively. The problems associated with operation at high concentration are discussed. It is noted that Auger recombination is the limiting factor in the operation of high efficiency solar cells, affecting not only the open circuit voltage, but having a great impact on the short circuit current as well. With additional design improvements, efficiencies over 30% at concentration appear to be within reach.

ISSN:0142-5919    

DOI:10.1080/01425918808914238

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

Very high efficiencies have been demonstrated under concentration with silicon solar cells having interdigitated contacts on the backside. However, only laboratory cells of small dimension have reached very high efficiencies. The need for developing a multilevel metallization technology for back contact concentrator solar cells of large area is demonstrated. The particular features required for such a multilevel interconnection are studied and a process using anodic oxidation of aluminum is presented. Back contact silicon solar cells of 0.64 cm2have been processed in this technology resulting in 26.2% efficiencies at 10W/cm2(100 suns AM1.5, 25.5°C). the highest efficiency reported to date for a solar cell of this area. The one-sun efficiency of this cell is 21.7% (AMI.5, 25.2°C). We propose also a new design for the metallization of back contact cells which allows an increase in the size of the cell without increasing the series resistance.

ISSN:0142-5919    

DOI:10.1080/01425918808914239

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

Static (or stationary) concentration opens up a promising path towards a reduction of the cost of photovoltaic electricity. This paper presents a review of the state-of-the art of static concentrators, including the theoretical basis of design and analysis, as well as some experimental prototypes. The limits of concentration and the conditions under which they may be reached are described. The limit is about 8 for a concentrator collecting 100% of direct radiation and about 45% of diffuse radiation. The two available design methods of 2-D static concentrators are briefly outlined.

ISSN:0142-5919    

DOI:10.1080/01425918808914240

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor