Madduri, S. and Kodange, V.G. and Raavi, S.S.K. and Singh, S.G.
(2021)
Optimization of thermally evaporated small molecule ternary organic solar cells.
In: Conference Record of the IEEE Photovoltaic Specialists Conference, 20 June 2021 through 25 June 2021, Fort Lauderdale.
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Abstract
Organic solar cells in ternary architecture have gained recent importance owing to their superior photovoltaic performances. In this work, we report fabrication and characterization of thermally evaporated small molecule based ternary bulk hetero junction (BHJ) organic photovoltaic (OPV) cells. To this we have used DTDCTB as a donor material, ICBA and C70 are used as electron acceptors in the active layer. The fabricated ternary OPV devices were tested under AM 1.5 solar irradiation. The fabricated devices were optimized for better performance at different annealing temperatures. Ternary device DTDCTB:C70: ICBA (1:0.2:1) presented the best efficiency of 4.68% when annealed at 90°C for 30 minutes. The obtained ternary OPV results were compared with the binary host system and reported efficient ternary OPVs and they are batch to batch reproducible. © 2021 IEEE.
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