Voltage- and Power-Conversion Performance of Bi-functional ZrO 2  : Er 3+ / Yb 3+ Assisted and Co-sensitized Dye Sensitized Solar Cells for Internet of Things Applications.

Autor: Meenakshamma A; Department of Physics, Yogi Vemana University, Kadapa, 516005, A.P., India., Mounika PM; Department of Physics, Yogi Vemana University, Kadapa, 516005, A.P., India., Gurulakshmi M; Department of Physics, Yogi Vemana University, Kadapa, 516005, A.P., India., Susmitha K; Department of Physics, Yogi Vemana University, Kadapa, 516005, A.P., India., Haranath D; Department of Physics, National Institute of Technology, Warangal, 506004, T.S., India., Goswami L; Sensor Devices & Metrology, National Physical Laboratory, New Delhi, 110012, India., Gupta G; Sensor Devices & Metrology, National Physical Laboratory, New Delhi, 110012, India., Someshwar P; Department of Chemistry, Osmania University, Hyderabad, 500007, T.S., India., Raghavender M; Department of Physics, Yogi Vemana University, Kadapa, 516005, A.P., India.
Jazyk: angličtina
Zdroj: Chemphyschem : a European journal of chemical physics and physical chemistry [Chemphyschem] 2023 Nov 16; Vol. 24 (22), pp. e202300572. Date of Electronic Publication: 2023 Sep 20.
DOI: 10.1002/cphc.202300572
Abstrakt: Giant power conversion efficiency is achieved by using bifunction ZrO 2  : Er 3+ /Yb 3+ assisted co-sensitised dye-sensitized solar cells. The evolution of the crystalline structure and its microstructure are examined by X-ray diffraction, scanning electron microscopy studies. The bi-functional behaviour of ZrO 2  : Er 3+ /Yb 3+ as upconversion, light scattering is confirmed by emission and diffused reflectance studies. The bi-function ZrO 2  : Er 3+ /Yb 3+ (pH=3) assisted photoanode is co-sensitized by use of N719 dye, squaraine SPSQ2 dye and is sandwiched with Platinum based counter electrode. The fabricated DSSC exhibited a giant power conversion efficiency of 12.35 % with V OC of 0.71 V, J SC of 27.06 mA/cm 2 , FF of 0.63. The results, which motivated the development of a small DSSC module, gave 6.21 % and is used to drive a tiny electronic motor in indoor and outdoor lighting conditions. Small-area DSSCs connected in series have found that a V OC of 4.52 V is sufficient to power up Internet of Things (IoT) devices.
(© 2023 Wiley-VCH GmbH.)
Databáze: MEDLINE
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