氧压变化对脉冲激光沉积法制备BeMgZnO四元合金薄膜性能的影响
The Influence of Oxygen Pressure on Properties of Pulsed Laser Deposited BeMgZnO Quaternary Alloy Thin Films
DOI: 10.12677/MS.2018.85065, PDF,    国家自然科学基金支持
作者: 杨蓉慧子, 黎明锴, 常 钢, 卢寅梅*, 何云斌:湖北大学材料科学与工程学院,湖北 武汉
关键词: BeMgZnO四元合金薄膜共取代脉冲激光沉积BeMgZnO Quaternary Alloy Thin Film Co-Substitution PLD
摘要: 本工作采用脉冲激光沉积法,以BeMgZnO陶瓷为靶材、c面蓝宝石为衬底,在固定衬底温度700˚C、改变沉积氧压条件下制备BeMgZnO四元合金薄膜。采用X射线衍射、X射线光电子能谱、紫外-可见光谱法系统表征研究了这些薄膜。结果表明,通过Be-Mg共取代ZnO,有效提高了Mg在合金薄膜中的含量。当Mg的含量达到44.4%时,BeMgZnO薄膜中仍无相分离发生,并且此时BeMgZnO薄膜的带隙达到4.19 eV,在可见光波段的透过率也高达85%。
Abstract: BeMgZnO quaternary alloy thin films were grown on the c-plane sapphire substrates by pulsed la-ser deposition (PLD) method using BeMgZnO ceramics target. The films were grown at a fixed substrate temperature of 700˚C and various O2 pressures. X-ray diffraction, X-ray photoelectron spectroscopy and UV-Vis spectrophotometry were used to characterize the films. By Be-Mg co-substitution in ZnO, the solid solubility of Mg in the BeMgZnO quaternary alloy films was in-creased largely. Even when the Mg content reached 44.4%, no phase segregation was found in the BeMgZnO quaternary alloy thin film. Meanwhile, the band gap of the BeMgZnO film was enlarged to 4.19 eV, and its visible-light transmittance exceeded 85%.
文章引用:杨蓉慧子, 黎明锴, 常钢, 卢寅梅, 何云斌. 氧压变化对脉冲激光沉积法制备BeMgZnO四元合金薄膜性能的影响[J]. 材料科学, 2018, 8(5): 559-566. https://doi.org/10.12677/MS.2018.85065

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