title: Controllable Laser Reduction of Graphene Oxide Films for Photoelectronic Applications.
abstract: This article presents a new simple method of creating light-absorbing carbon material for optical devices such as bolometers. A simple method of laser microstructuring of graphene oxide is used in order to create such material. The absorption values of more than 98% in the visible and more than 90% in the infrared range are achieved. Moreover thermal properties of the films, such as temperature dependence and the thermal response of the samples, are studied. The change in resistance with temperature is 13 Ohm K-1, temperature coefficient of resistance (TCR) is 0.3% K-1, and the sensitivity is 0.17 V W-1at 300 K. Thermal conductivity is rather high at ∼104 W m-1K-1at 300 K. The designed bolometer operates at room temperature using incandescent lamp as a light source. This technique suggests a new inexpensive way to create a selective absorption coating and/or active layer for optical devices. Developed GO and rGO films have a large surface area and high conductivity. These properties make carbon coatings a perfect candidate for creating a new type of optoelectronic devices (gas sensors, detectors of biological objects, etc.).
authors.affiliation: P. N. Lebedev Physical Institute, Russian Academy of Sciences , 53 Leninsky Prospect, 119991 Moscow, Russia.
authors.forename: Stanislav
authors.initials: S
authors.lastname: Evlashin
authors.forename: Pavel
authors.initials: P
authors.lastname: Dyakonov
authors.affiliation: P. N. Lebedev Physical Institute, Russian Academy of Sciences , 53 Leninsky Prospect, 119991 Moscow, Russia.
authors.forename: Roman
authors.initials: R
authors.lastname: Khmelnitsky
authors.forename: Sarkis
authors.initials: S
authors.lastname: Dagesyan
authors.affiliation: P. N. Lebedev Physical Institute, Russian Academy of Sciences , 53 Leninsky Prospect, 119991 Moscow, Russia.
authors.forename: Andrey
authors.initials: A
authors.lastname: Klokov
authors.affiliation: P. N. Lebedev Physical Institute, Russian Academy of Sciences , 53 Leninsky Prospect, 119991 Moscow, Russia.
authors.forename: Andrey
authors.initials: A
authors.lastname: Sharkov
authors.affiliation: Institute on Laser and Information Technologies RAS , 2 Pionerskaya,142092 Troitsk, Russia.
authors.forename: Peter
authors.initials: P
authors.lastname: Timashev
authors.affiliation: Institute on Laser and Information Technologies RAS , 2 Pionerskaya,142092 Troitsk, Russia.
authors.forename: Svetlana
authors.initials: S
authors.lastname: Minaeva
authors.forename: Konstantin
authors.initials: K
authors.lastname: Maslakov
authors.forename: Sergey
authors.initials: S
authors.lastname: Svyakhovskiy
authors.affiliation: Skolkovo Institute of Science and Technology , 3 Nobel, 143025 Skolkovo, Russia.
authors.forename: Nikolay
authors.initials: N
authors.lastname: Suetin
keywords: bolometers; graphene oxide; laser microstructuring; optical properties; thermal properties