TY - JOUR

T1 - Novel thin film cadmium ion selective sensor based on pulse laser deposition

AU - Hu, Wei Jun

AU - Li, Yi

AU - Zou, Shao Fang

AU - Wang, Ping

AU - Legin, Andrey

PY - 2008/2/1

Y1 - 2008/2/1

N2 - A novel thin film micro sensor sensitive to cadmium (II) ion was made by depositing the cadmium ion selective chalcogenide glasses (Cd-Ag-As-I-S) materials on the surface of a light-addressable poten-tiometric sensor (LAPS) using pulse laser deposition (PLD) technique. The substrate of the sensor is a single crystal silicon of N type and the metal contact layers are Cr/Au. The detection limit of the thin film sensor was tested to be 1.15 × 10-7 mol/L, the response time less than 2 min, and the application scope of pH from 4 to 7. The sensor has good inhibition ability to interfering ions. The thin film sensor has the characteristics such as rapid detection, few sample solutions and low detection limit. Contrasted with a ion-selective electrode (ISE), the sensor improves the sensitivity for its response signal is alternating-current excited by an alternating light. The results show that PLD technique is a new and effective method for preparing thin film micro integrating sensors.

AB - A novel thin film micro sensor sensitive to cadmium (II) ion was made by depositing the cadmium ion selective chalcogenide glasses (Cd-Ag-As-I-S) materials on the surface of a light-addressable poten-tiometric sensor (LAPS) using pulse laser deposition (PLD) technique. The substrate of the sensor is a single crystal silicon of N type and the metal contact layers are Cr/Au. The detection limit of the thin film sensor was tested to be 1.15 × 10-7 mol/L, the response time less than 2 min, and the application scope of pH from 4 to 7. The sensor has good inhibition ability to interfering ions. The thin film sensor has the characteristics such as rapid detection, few sample solutions and low detection limit. Contrasted with a ion-selective electrode (ISE), the sensor improves the sensitivity for its response signal is alternating-current excited by an alternating light. The results show that PLD technique is a new and effective method for preparing thin film micro integrating sensors.

KW - Cadmium ion sensitive thin film sensor

KW - Chalcogenide glasses

KW - Light-addressable potentiometric sensor (LAPS)

KW - Pulse laser deposition (PLD)

UR - http://www.scopus.com/inward/record.url?scp=41649097846&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:41649097846

VL - 42

JO - Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science)

JF - Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science)

SN - 1008-973X

IS - 2

ER -