| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1643994 | Materials Letters | 2014 | 4 Pages |
•High quality CdS nanowires (NWs) were synthesized.•CdS NW humidity sensors were fabricated and studied.•The sensor has a large resistance variation of ~2 orders of magnitude in the RH range of 30–90%.•The sensor shows a high sensitivity of 47.5, a fast response time of 1.27 s, recovery time of 2.44 s and high stability to humidity variation.
High-quality CdS nanowires (NWs) were synthesized via the chemical vapor deposition (CVD) method in a Cd-enriched atmosphere. Humidity sensing characteristics of CdS NWs have been investigated. It was found that the resistance of the NWs decreases with increasing relative humidity (RH). At room temperature (RT), a large resistance variation of ~2 orders of magnitude in the RH range of 30–90% reveals CdS NW has high humidity sensitivity. CdS NWs humidity sensor shows a high sensitivity of 47.5, a fast response time of 1.27 s, recovery time of 2.44 s and high stability to humidity variation. These results indicate that the CdS NWs can serve as high-performance humidity sensors.
