Ultraviolet photoresponse of porous ZnO thin films prepared by unbalanced magnetron sputtering

Sharma, Parmanand; Mansingh, Abhai; Sreenivas, K.
January 2002
Applied Physics Letters;1/28/2002, Vol. 80 Issue 4, p553
Academic Journal
Fast ultraviolet photoresponse is observed in ZnO thin films prepared by unbalanced magnetron sputtering. Films with a porous microstructure and a mixed (100), (002) and (101) crystallographic orientation exhibit photoresponse with good linearity and minimal aging effects. A fast rise time of 792 ms and a fall time of 805 ms are observed under low intensity (9.5 mW/cm2, λ=365 nm) ultraviolet light. © 2002 American Institute of Physics.


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