Electrical Characterization of CdS Nanoparticles for Humidity Sensing Applications
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, cilt.51, sa.8, ss.3309-3313, 2012 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 51 Sayı: 8
- Basım Tarihi: 2012
- Doi Numarası: 10.1021/ie201509a
- Dergi Adı: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.3309-3313
- Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet
Özet
Resistive type relative humidity sensors based on CdS nanoparticles were synthesized using the chemical bath deposition (CBD) method. Using the drop-casting method, CdS nanoparticles were deposited between thermally evaporated gold electrodes separated by 17 mu m with the electrodes having channel widths of 1400 mu m and supported on a glass substrate with a thickness of 120 nm. The CdS nanoparticles were exposed to moisture to measure the change in electrical resistance. The resistance of the CdS sensor element changed by 3 orders of magnitude as the relative humidity of the test cell was varied between 17 and 85%. The experimental results demonstrate that CdS nanoparticles are very sensitive to changes in relative humidity and can be used as a sensing element for CdS-based humidity sensor applications.