# Tuning Graphene Oxide Band Gaps with Electricity

Page: https://stenobird.com/podcast/scientific-insight-7034414/tuning-graphene-oxide-band-gaps-with-electricity
Text version: https://stenobird.com/podcast/scientific-insight-7034414/tuning-graphene-oxide-band-gaps-with-electricity.md
Podcast: [Scientific Insight](https://stenobird.com/podcast/scientific-insight-7034414)
Published: 2026-03-05T07:19:04+00:00
Episode link: https://rss.com/podcasts/scientific-insight/2602348
Audio file: https://content.rss.com/episodes/292201/2602348/scientific-insight/2026_03_05_07_18_53_8c6c4545-a71a-43a5-a858-5065d3491bf6.mp3
Processing state: not_requested
JSON: https://stenobird.com/v1/public/podcasts/scientific-insight-7034414/episodes/tuning-graphene-oxide-band-gaps-with-electricity
Duration seconds: 1128

## Resource

Spatio-temporal Analysis of Electric Field Induced Solid State Reduction Dynamics of Graphene Oxide Thin Films for Controlled Bandgap Modulation N. Prasad, S. Tanwar, S. Mukhopadhyay and T. Kundu J. Phys. Chem. C 124, 21874-21885 (2020) An electric field-induced reduction mechanism studied for tuning the band gap of graphene oxide thin films in a two-electrode configuration on a SiO2/Si substrate is presented. During the reduction, temporal changes in the sheet resistance and optical band gap of the film were monitored and the correlation between these parameters in this solid state chemical reaction was established. As the reduction progresses, three different kinds of temporal dependence of electrical characteristics were observed. Further, from spatio-temporal analysis of the reduction of graphene oxide in such a disordered system, an analytical model was developed to describe the time dynamics of the reduction process. This model provides the flexibility for in situ monitoring the band gap of the material in terms of sheet resistance during the reduction, hence allowing device optimization for different applications. It is envisaged that this reduced graphene oxide-based tunable platform may find enormous potential for various electronic and optoelectronic applications.

## Actions

- request_transcript: `POST https://stenobird.com/v1/public/podcasts/scientific-insight-7034414/episodes/tuning-graphene-oxide-band-gaps-with-electricity/transcription-requests` — Idempotently request low-priority transcript generation for this episode.
- read_markdown: `GET https://stenobird.com/podcast/scientific-insight-7034414/tuning-graphene-oxide-band-gaps-with-electricity.md` — Read the agent-friendly Markdown representation of this episode resource.

A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed.

## Transcript

Full transcripts are not published on public pages unless there is a clear rights basis.