Journal
SOLAR ENERGY
Volume 135, Issue -, Pages 674-681Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2016.06.043
Keywords
Glass frit; Sealing; Laser; Dye-sensitized solar cells
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Funding
- European Commission through Seventh Framework Programme
- Specific Programme Ideas of the European Research Council for research and technological development as part of Advanced Grant [321315]
- European project REELCOOP - Research Cooperation in Renewable Energy Technologies for Electricity Generation [608466]
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For the first time laser assisted sealing using lead-free glass frit was successfully applied for producing a DSC panel with a total sealed area of 1638 cm(2) and active area of 990 cm(2). The panel comprises 90 DSCs individual glass sealed cells (140 mm x 13 mm) arranged in 10 sub-modules (150 mm x 150 mm). Indoor aging of individual sub-modules in dark and at ambient temperature for 100 days showed rather small decrease of the photocurrent conversion efficiency: -1.23.10(-4) day(-1). The DSC panel was tested under outdoor working conditions during 47 days in summer time (Porto, Portugal), where the average day illumination level was about 6 kW h m(-2). After 47 days of continuous power production the assembled panel kept 86% of the initial efficiency. No leakage of electrolyte or visual defects in the sealed glass frit were detected. Glass sealed DSCs performed superior stability under 1000 h of ageing in a climatic chamber when compared to polymer sealed cells. The results show that the laser assisted sealing can be applied to large area DSC modules. (C) 2016 Elsevier Ltd. All rights reserved.
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