Final rept. Feb 2013-Oct 2014
MASSACHUSETTS UNIV DARTMOUTH
Pagination or Media Count:
This report describes a project to improve photovoltaic fabrics. It had four objectives 1 Efficiency - make PV wires on a continuous basis that exhibit 7 efficiency 2 Automated Welding - demonstrate an automated means of interconnecting the electrodes of one wire to the electrodes of a neighboring wire 3 Weaving - fabric to determine the optimum wire density, relative to the co-woven inert yarn, for power production, flexibility, and wearability 4 Battery Charging - produce fabrics that are able to charge 4AA batteries within 4 hours of exposure to direct sunlight AM1.5. Over the duration of the project we demonstrated PV efficiency ranging from 5.04 wire on a black background to 8 efficiency on a white cloth background. A bare primary electrode on a nano-silver coating exhibited an efficiency of 6.45. This high level of performance was accomplished by means of high performance active layer polymers, stainless steel electrodes with lower resistivity, optimized coating formulations for all layers, a new cladding formulation, and process optimization. We supplied several thousand feet of high performance PV wire for weaving trials and fabric delivery.
- Electrooptical and Optoelectronic Devices
- Electrochemical Energy Storage
- Fabrication Metallurgy
- Manufacturing and Industrial Engineering and Control of Production Systems