GU Hang, HE Xing-li, LUO Ji-kui. Research on high speed UV sensing characteristics based on ZnO /Glass SAW device[J]. 2014, 33(9): 35-37+41. DOI: 10.13873/J.1000-9787(2014)09-0035-03.
ZnO /Glass-based surface acoustic wave( SAW) device can be used to fabricate UV light detector with excellent performance. Finite element analysis( FEA) software COMSOL Multiphysics is used to simulate SAW device with this structure
and the S11 parameter is achieved. Based on simulation result
corresponding SAW devices is fabricated. ZnO thin film with( 0002) orientation is depositted by direct-current( DC) reactive magnetron sputtering. Response time of SAW UV detector based on this structure to UV light is only 3 s
and sensitivity of UV detection is as high as 36. 4 × 10- 6/mW /cm2.
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