期刊
IEEE JOURNAL OF PHOTOVOLTAICS
卷 9, 期 4, 页码 1020-1024出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOTOV.2019.2899432
关键词
Fabric dye sensitized solar cell (DSSC); flexible DSSCs; smart textiles; solution processed printed DSSCs
资金
- Sensor Platform for HEalthcaRE in a Residential Environment (SPHERE) Project (EPSRC) [EP/K031910/1]
- EPSRC fellowship Energy Harvesting Materials for Smart Fabrics and Interactive Textiles [EP/I005323/1]
- EPSRC [EP/I005323/1, EP/K031910/1] Funding Source: UKRI
This paper presents the novel use of screen printing and spray coating techniques to fabricate dye sensitized solar cells on textiles for wearable energy harvesting applications. Multiple functional layers of electrodes and active materials have been deposited on everyday use polyester cotton woven fabric and high-temperature resistant glass fiber fabric. The poly cotton fabric limits processing temperatures to 150 degrees C, while the glass fiber textile can withstand up to 1200 degrees C. The surface roughness of the textiles has been significantly reduced by screen printing a polyurethane interface layer on the polyester cotton fabric and a liquid polyimide on the glass fiber textile. A silver bottom electrode layer and a bespoke titanium dioxide electron transport layer formulated for each temperature range were then screen printed onto the planarized surfaces. The devices use lodine/lodide (I-3(-)/I-) as the liquid electrolyte and were sealed with a plastic PET/ITO, which also forms the counter electrodes. The printed cells have demonstrated photovoltaic (PV) power conversion efficiencies of 3.24% on polyester cotton and 4.04% on glass fiber textiles, in ambient conditions. The polyurethane and polyimide interface layers significantly enhance the performance and stability of the fabricated cells providing extended operational lifetimes. This approach is potentially suitable for the low-cost integration of PV devices into clothing and other textile applications.
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