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在铜衬底通过低压化学气相淀积(LPCVD)和溶胶-凝胶法直接制备氧化锌/石墨烯纳米薄膜。分析退火温度对其结构、形态、化学状态和成分、光学性能的影响。XRD分析表明,氧化锌/石墨烯纳米结构表现出六方纤锌矿结构,晶体质量随退火温度从500℃到700℃的增加而提高。当退火温度达到700℃时,SEM显示,氧化锌薄膜呈现出颗粒均匀密集、表面光滑。其薄膜的平均颗粒尺寸约为35.7 nm。PL测量显示,退火温度为700℃时,氧化锌/石墨纳米薄膜具有较好的光学性能,这是因为样品的结晶质量较高且缺陷密度较低。
ZnO / graphene nanofilms were prepared directly on copper substrate by low pressure chemical vapor deposition (LPCVD) and sol-gel method. The effect of annealing temperature on its structure, morphology, chemical state, composition and optical properties was analyzed. XRD analysis shows that the ZnO / graphene nanostructures exhibit hexagonal wurtzite structure, and the crystal quality increases with annealing temperature from 500 ℃ to 700 ℃. When the annealing temperature reaches 700 ℃, the SEM shows that the zinc oxide film has a uniform and dense particle surface and a smooth surface. The average particle size of the film is about 35.7 nm. PL measurements show that the ZnO / graphite nanofilms have better optical properties at annealing temperature of 700 ℃ because of the high crystalline quality and lower defect density of the samples.