Fabrication of DSSC solar cells on multilayer ZnO/Ag/ZnO (ZAZ) TCO layer
Bidyut Barman a, Dhavalkumar N Joshi a, Viresh Dutta a
a CES, IIT Delhi, Centre for Energy Studies, Block 5, New Delhi, 110016
Proceedings of SUNRISE IV - Transition to Net Zero (SUNRISEIV)
Online, Spain, 2022 February 10th - 11th
Organizers: Georgia Bevan, Ashish Garg, Raju Gupta, Ian Mabbett, Hari Upadhyaya, Adrian Walters and Sara Walters
Poster, Bidyut Barman, 007
Publication date: 7th February 2022
ePoster: 

Fabrication of DSSC solar cells using ZAZ as a TCO layer has been reported. Device with ZAZ shows low  shunt resistance and higher series resistance and the PCE% is equivalent to that of FTO. The  ZAZ 2 structure has shown maximum optical transparency of about 86.5% at around 508 nm with very low sheet resistance (5.3 Ω/□) and electrical resistivity (3.67×10-5 Ω.cm) and  higher figure of merit (25.4 ×10-3 Ω-1 ). The prepared ZAZ  samples shows work function tunability, which can be beneficial for solar cell applications as different types of solar cells demands different work function. Mobility enhancement for 10 nm Ag layer is due to the reduction of interface scattering as the Ag layer becomes continuous with increase in the thickness. The decrease in the sheet resistance of the structure is due to the increase in free carrier availability and higher mobility of the charge carriers with increased Ag layer thickness.

This research work was performed under the project “Strategic University Network to Revolutionise Indian Solar Energy (SUNRISE)”.

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