Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2018 Aug 29;8(9):671. doi: 10.3390/nano8090671

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Room-temperature electrical resistances of (a) In₂O₃, (b) In₂O₃ Ru-TT, (c) SnO₂, and (d) SnO₂ Ru-TT samples under periodic illumination, depending on NO₂ content in the gas phase. (1): blue light (λ_max = 470 nm), (2): green light (λ_max = 535 nm), (3): red light (λ_max = 630 nm). The digits on Figure 9a show the sequence of changes in NO₂ concentration (ppm). (e) Room-temperature electrical resistance of the In₂O₃ Ru-TT sample in the presence of the 0.5-ppm NO₂ concentration under periodic blue light (λ_max = 470 nm) illumination. The shaded areas correspond to the “light on” period.