Surface Morphology and Photoluminescence Properties of ZnO Films Deposited with PLD

YAMAMOTO A S,MIYAJIMA K S.GOTO T.Biexciton luminescence in high-quality ZnO epitaxial thin films[J]. J.Appl.Phys.,2001,90(10):4 973-4 976.[2] ZU P,TANG Z K,WONG G K L.Ultraviolet spontaneous and stimulated emissions from ZnO microcrystallite thin films at room temperature[J]. Solid State Commun,1997,103 (8):459-463.[3] SUN X W,KWOK H S.Optical properties of epitaxially grown zinc oxide films on sapphire by pulsed laser deposition[J]. J.Appl.Phys.,1999,86(1):408-411.[4] KO H J,CHEN Y F,ZHU Z.Photoluminescence properties of ZnO epilayers grown on CaF2 (111) by plasma assisted molecular beam epitaxy[J]. Appl.Phys.Lett.,2000,76(26):1 905-1 907.[5] NATSUME Y,SAKATA H.Zinc oxide fills prepared by sol-gel spin-coating[J]. Thin Solid Films,2000,372 (1-2):30-36.[6] KIM K K,SONG J H,JUNG H J,et al.The grain size effects on the photoluminescence of ZnO/(α-Al2O3 grown by radiofrequency magnetron sputtering[J]. J.Appl.Phys.,2000,87(8):3 573-3 575.[7] ZHANG G B,SHI C S,HAN Z F.Photoluminescent Properties of ZnO Films Deposited on Si Substrates[J]. Chin.Phys.Lett.,2001,18(3):441-442.[8] CHEN X J,LIU Y C,MA J G.High-quality ZnO thin films prepared by two-step thermal oxidation of the metallic Zn[J]. Journal of Crystal Growth,2002,240(3-4):467-472.[9] JIN B J,IM S,LEE S Y.Violet and UV luminescence emitted from ZnO thin films grown on sapphire by pulsed laser deposition[J]. Thin Solid Films,2000,366(1-2):107-110.[10] OHSHIMA T,THAREJA R K,IKEGAMI T,et al.Preparation of ZnO thin fills on various substrates by pulsed laser deposition[J]. Surface and Coatings Technology,2003,169 -170:517-520.[11] BAE S H,LEE S Y,KIM H Y.Comparison of the optical properties of ZnO thin fills grown on various substrates by pulsed laser deposition[J]. Applied Surface Science,2000,168 (1-4):332-334.[12] LIN B X,FU Z X,JIA Y B.Green luminescent center in undoped zinc oxide films deposited on silicon substrates[J]. Appl.Phys.Lett.,2001,79(27):943-945.[13] CZERWINSKI F,SZPUNAR J A.Structural and magnetic characterization of nano-crystalline Ni-20% Fe permalloy fills[J]. Journal of Materials Science,2000,11(1-2):243-251.