Electrical Characterization of CdS Nanoparticles for Humidity Sensing Applications
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Tarih
2012
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Chemical Soc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
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.
Açıklama
Anahtar Kelimeler
Solar-Cell Applications, Thin-Films, Gas-Sensor, Physical-Properties, Sonochemical Synthesis, Sensitivity, Oxygen, Temperature, Dependence, Stability
Kaynak
Industrial & Engineering Chemistry Research
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
51
Sayı
8
