2026-04-19T10:45:32Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/103032025-03-12T01:05:31Zcom_10259_5822com_10259_5086com_10259_2604col_10259_5823

00925njm 22002777a 4500 dc Palenzuela, Jesús author Viñuales, Ana author Odriozola, Ibon author Cabañero, Germán author Grande, Hans J. author Ruiz Fernández, Virginia author 2014-08 Reduced graphene oxide (RGO) films have been electrodeposited on indium tin oxide-coated polyethylene terephthalate (ITO-PET) substrates from graphene oxide (GO) solutions, and the resulting flexible transparent electrodes have been used in electrochromic devices of ethyl viologen (EtV2+). The electrochromic performance of devices with bare ITO-PET electrodes and ITO-PET coated with RGO has been compared. Under continuous cycling tests up to large voltages, the RGO film was oxidized and dispersed in the electrochromic mixture. The resulting devices, which contained GO and RGO in the electrochromic mixture, showed lower switching voltages between the colored and bleached states. This electrocatalytic activity of the solution-phase GO/RGO pair toward the electrochemical reaction of the electrochromic redox couple (the dication EtV2+ and the radical cation EtV+•) allowed devices with an optical contrast higher than the contrast of those free of GO at the same applied voltage. 1944-8244 http://hdl.handle.net/10259/10303 10.1021/am503869b 1944-8252 Electrochromism Flexible electrodes Graphene oxide Viologen Flexible Viologen Electrochromic Devices with Low Operational Voltages Using Reduced Graphene Oxide Electrodes