Preliminary investigations on the bolometric response of thermally reduced graphene oxide (TRGO)
In this study, the unique properties of graphene were tested for their possible use in detectors, specifically thermal detectors also known as bolometers. This study aims to investigate the temperature coefficient of resistance (TCR) at room temperature, dependence of voltage with temperature, optical responsivity and time constant of a thermally reduced graphene oxide (TRGO) bolometer. We show a large negative TCR of -4.26 % K-1 with a responsivity of 20 V/W and a moderately fast time constant of 20 ms, comparable with other graphene-based bolometers. These characteristics show that TRGO has a potential for an effective absorber for bolometers.
By submitting their manuscript to the Samahang Pisika ng Pilipinas (SPP) for consideration, the Authors warrant that their work is original, does not infringe on existing copyrights, and is not under active consideration for publication elsewhere.
Upon acceptance of their manuscript, the Authors further agree to grant SPP the non-exclusive, worldwide, and royalty-free rights to record, edit, copy, reproduce, publish, distribute, and use all or part of the manuscript for any purpose, in any media now existing or developed in the future, either individually or as part of a collection.
All other associated economic and moral rights as granted by the Intellectual Property Code of the Philippines are maintained by the Authors.