63 research outputs found
Comparative indoor and outdoor stability measurements of polymer based solar cells
We report comparative indoor and outdoor stability testing of organic solar cells based on a blend between a donor-acceptor polyfluorene copolymer and a fullerene derivative. The outdoor testing was conducted for a period over 12,000 hours in Sheffield, England, with a Ts80 lifetime determined in excess of 10,000 hours (420 days). Indoor lifetime testing was performed on solar cells using a solar simulator under a constant irradiance of 1000 W/m(2) for more than 650 hours. We show that under the conditions explored here, device degradation under the two sets of conditions is approximately dependent on the absorbed optical energy dose
High-performance flexible Ag nanowire electrode with low-temperature atomic-layer-deposition fabrication of conductive-bridging ZnO film
Congenital aniridia: clinical profile of children seen at the University College Hospital, Ibadan, South-West Nigeria
Conformatory factor analytic study of PTSD’s latent structure in Indian trauma survivors: Role of gender
A lab-to-fab study toward roll-to-roll fabrication of reproducible Perovskite solar cells under ambient room conditions
Comment on “Possible prophylactic or preventive role of topical povidone iodine during accidental ocular exposure to 2019-nCoV”
PCDTBT based solar cells: one year of operation under real-world conditions.
We present measurements of the outdoor stability of PCDTBT:PC71BM based bulk heterojunction organic solar cells for over the course of a year. We find that the devices undergo a burn-in process lasting 450 hours followed by a TS80 lifetime of up to 6200 hours. We conclude that in the most stable devices, the observed TS80 lifetime is limited by thermally-induced stress between the device layers, as well as materials degradation as a result of edge-ingress of water or moisture through the encapsulation
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