Laser-reduced graphene oxide powers ITO-free solar cells and micro-supercapacitors on the same chip
Researchers at Hellenic Mediterranean University (HMU), the HMU Research Center’s Institute of Emerging Technologies (i-EMERGE), the Foundation for Research and Technology’s Institute of Electronic Structure and Laser (FORTH-IESL), and the University of Crete have used laser-reduced graphene oxide (LrGO) as a transparent conductive electrode for both perovskite solar cells and micro-supercapacitors fabricated on the same glass substrate.
The team deposited graphene oxide (GO) films by spray coating, then reduced and patterned them using an ultrashort-pulse infrared laser to form conductive LrGO electrodes, avoiding the more complex and costly chemical vapor deposition (CVD) and transfer processes typically used to put graphene into solar cells. The optimized LrGO films reached a sheet resistance of about 400 Ω per square at 38% optical transmittance.
Source: https://www.graphene-info.com/laser-reduced-graphene-oxide-powers-ito-free-solar-cells-and-micro
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