氧化钒薄膜
氧化钒薄膜的相关文献在1998年到2022年内共计303篇,主要集中在无线电电子学、电信技术、物理学、一般工业技术
等领域,其中期刊论文60篇、会议论文18篇、专利文献401740篇;相关期刊36种,包括实验技术与管理、材料导报、功能材料等;
相关会议17种,包括第七届全国高等学校物理实验教学研讨会、2012年广东省真空学会学术年会、第十一届中国国际纳米科技研讨会等;氧化钒薄膜的相关文献由626位作者贡献,包括蒋亚东、胡明、吴志明等。
氧化钒薄膜—发文量
专利文献>
论文:401740篇
占比:99.98%
总计:401818篇
氧化钒薄膜
-研究学者
- 蒋亚东
- 胡明
- 吴志明
- 梁继然
- 金平实
- 易新建
- 王涛
- 陈四海
- 王宏臣
- 赵修建
- 高彦峰
- 罗宏杰
- 曹逊
- 孙光耀
- 许向东
- 魏雄邦
- 黄光
- 何少伟
- 张东平
- 李荣
- 田守勤
- 范平
- 顾德恩
- 刘志刚
- 李金华
- 杨琬琛
- 林媛
- 袁宁一
- 车文荃
- 陈效双
- 陶海征
- 吕宇强
- 康利涛
- 徐晓峰
- 李彬
- 杨书兵
- 王哲
- 罗景庭
- 路畅
- 陈涛
- 高敏
- 卜毅
- 后顺保
- 周少波
- 廖家轩
- 张之圣
- 朱志甫
- 杜靖
- 梅永丰
- 邓文娟
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白睿;
武英桐;
李晓敏;
宋鸿佳;
黄美东
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摘要:
通过磁控溅射法在玻璃基底上制备氧化钒薄膜样品.由于沉积温度较低,薄膜样品呈非晶态且不透明.为使薄膜样品晶化,并有效抑制其过度氧化,将样品在管式真空炉中进行退火处理.本文重点研究了退火温度对薄膜结构和在可见至近红外波段光学性能的影响,退火温度的调节范围为300~550°C,退火时间固定为120 min.研究发现,随退火温度升高,薄膜样品的结晶度越好,当温度达到500°C时,薄膜样品结晶最好,薄膜基本由纯VO2相构成,且透光性能最好.随着退火温度进一步提高,薄膜中出现杂相,光学性能反而下降.
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李海鸥;
丁志华;
潘岭峰;
王晓峰;
张紫辰
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摘要:
氧化钒薄膜制备后需要进行退火处理以降低非晶态氧化钒薄膜的方阻大小并改善薄膜结晶特性.传统退火方式时间较长且退火过程会导致器件性能降低.本文主要利用激光精确控制的特点处理氧化钒薄膜,通过平顶光路系统改变激光功率、高斯光斑形貌以及光斑的重叠率对氧化钒薄膜进行退火处理,主要研究了激光能量密度以及光斑重叠率对氧化钒薄膜的方阻,表面粗糙度以及结晶度的影响.实验结果表明激光功率为0.7 W,光斑重叠率为93.33%,光斑能量密度为62.2 mJ/cm2时,退火氧化钒薄膜的方阻值明显降低,薄膜表面光滑且氧化钒结晶度较好.%After the preparation of the vanadium oxide thin film,annealing treatment is required to reduce the square resistance of the amorphous vanadium oxide film and improve the film crystallization characteristics. The conventional annealing methods take a long time and the annealing process will lead to the degradation of the device perform-ance. The vanadium oxide thin films by laser precision control is treated by changing the laser power,the Gaussian spot morphology and the overlap rate. The effects of laser energy density and spot overlap rate on the sheet resistance, surface roughness and crystallinity of vanadium oxide thin films were studied. The experimental results show that when the laser power is 0. 7 W,the spot overlap rate is 93. 33% and the spot energy density is 62. 2 mJ/cm2 ,the sheet re-sistance of annealed vanadium oxide thin film is obviously reduced,the surface of the film is smooth,and the crystal-linity of vanadium oxide is better.
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王盼盼;
章俞之;
彭明栋;
张云龙;
吴岭南;
曹韫真;
宋力昕
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摘要:
The monoclinic phase (M phase) VO2 film is prepared on quartz glass substrate by a model MSP-3200 three-target co-sputter coater with RF magnetron reactive sputtering. The optical properties in incident energy ranges of 0.5–3.5 eV (350–2500 nm) and 0.083–0.87 eV (1400–15000 nm) of VO2 film are investigated by spectroscopic ellipsometry with variable temperature attachment. The good results are determined point by point with the three Lorentz harmonic oscillator dispersion models in the range of 0.5–3.5 eV and four Gaussion harmonic oscillator dispersion models in the range of 0.083–0.87 eV in the state of semiconductor below the transition temperature, while adding seven Lorentz harmonic oscillator dispersion models in the high temperature metallic state film results in the characteristic absorption peaks. The results show that the refractive index of the semiconductor state of VO2 film is maintained at maximum 3.27 and extinction coefficient k is close to zero in the near infrared-mid infrared, which is due to the fact that the absorption of semiconductor thin film in the VIS-NIR range is derived from the free carrier absorption and d// orbital of the semiconductor film has less electron density. The refractive index n of high temperature metallic state VO2 film has an obviously increasing trend in the near infrared-the mid infrared which is larger than the refractive index of the semiconductor state when the incident light energy is 0.45 eV. Extinction coefficient k increases rapidly in the near infrared, which is because the density of free carrier increases in the range of 0.5–1.62 eV and electron transition absorption augments within the V3d band. When the incident energy less than 0.5 eV, k value changes gently in the film because free carrier concentration and flow rates are stable.
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张元元;
李合琴;
胡仁杰;
李辉
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摘要:
The vanadium oxide thin films were prepared by direct current reactive magnetron sputtering and subsequent thermal reduction annealing .The effects of heat treatment temperature and time on the phase transitions and properties of the thin films were discussed .The surface morphology ,phase structure ,infrared light transmittance and variable resistance with temperature were detected and ana-lyzed by atomic force microscopy (AFM ) ,X-ray diffraction (XRD) ,infrared spectrometer and LCR precision bridge separately .T he results show that the compositions of the as-deposited vanadium ox-ides thin films are V2 O5 and the V2 O5 are reduced to monoclinic structure VO2 mostly after annealing at 500 °C for 120 min under a hydrogen atmosphere ,and the resistance mutations can reach to two or-ders of magnitude .%文章采用直流反应磁控溅射和热还原退火法制备VO2薄膜,研究了退火温度与时间对该薄膜相变和性能的影响。采用原子力显微镜(AFM )、X射线衍射仪(XRD)、红外光谱仪、LCR精密电桥对薄膜的形貌、结构组分、光学性能和变温电阻进行了测试与分析。实验结果表明,溅射法制备的VO2薄膜主要为 V2 O5相,经过500°C/120 min氢气热还原退火后,薄膜逐步转变为VO2相,电阻突变可达到2个数量级。
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乔亚;
路远
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摘要:
The technology of laser protection using the phase transition properties of vanadium oxide has become a re-search focus.Vanadium oxide thin film was fabricated on ordinary glass substrates by direct current (DC)magnetron sputtering from a vanadium metal target and subsequent annealing.The phase transition of the film was observed by measuring its resistance-temperature (R-T)characteristic curve.Continuous CO2 laser with a power of 8.9 W and a spot diameter of 4.4 mm was used to irradiate on both bare glass disc and glass disc covered with vanadium oxide film to do damage experiments.The data indicated that the film had a semiconductor-metal phase transition temperature of about 30 °C,the bidirectional reflectance of the film before and after the phase transition were 1 3.48% and 76.4%respectively,and the bare glass disc broke down after irradiated for 7.5 s while the glass disc with vanadium oxide film remained unbroken for 38 s.This results show that the fabricated sample has the ability of laser protection because of its high reflectance after the phase transition.%军事目标的抗强激光毁伤是亟待解决的热点难点问题,利用氧化钒的相变特性进行激光防护是当前这一领域的热点之一。本文采用直流磁控溅射加后续热处理的方法在普通玻璃基底上制备了氧化钒薄膜,通过测量其电阻温度特性曲线来观测其相变特性,并利用功率为8.9 W、光斑直径为4.4 mm的二氧化碳连续激光分别照射用作基底的普通玻璃和制备的相变氧化钒薄膜样品进行激光毁伤试验。试验数据显示该薄膜的相变温度约为30°C,薄膜的双向光谱反射率在相变前后分别为13.48%和76.4%,用作基底的玻璃在激光照射7.5 s后破碎,而制备的薄膜样品在照射38 s后才破碎。这表明本文制备的室温相变氧化钒薄膜在相变后具有高反射特性,从而具有一定的抗强激光毁伤能力。
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杨伟;
梁继然;
刘剑;
姬扬
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摘要:
在可见光—近红外波段的不同波长下,测量了半导体-金属相变过程中氧化钒薄膜样品的反射率和透射率。在薄膜相变过程中,不同波段的反射率曲线和透射率曲线表现出不同的变化趋势。利用非相干光在薄膜中的多级反射-透射模型,计算了相变过程中不同波长下氧化钒薄膜的折射率n和消光系数k随温度的变化。结果表明,在相变温度附近氧化钒薄膜光学性质的异常变动,其原因既有薄膜的折射率和消光系数随波长的变化趋势不同,也有在吸收性薄膜中存在探测光多次反射和透射的累加效应。%The optical properties of vanadium oxide thin film are measured at semiconductor-metal transition, including reflectance and transmittance results at different wavelengths which show different trends during the phase transition. With a multi-level reflection-transmission model of incoherent light, we calculate the values of refractive index n and extinction coefficient k at different wavelengths, and show that the abnormal optical properties result not only from the dependences of n and k on the wavelength, but also from multiple reflections in the absorbing film.
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WEI Xiongbang;
魏雄邦;
LIAO Jiaxuan;
廖家轩;
WU Zhiming;
吴志明;
JIANG Yadong;
蒋亚东
- 《综合电子系统技术教育部重点实验室暨四川省高密度集成器件工程技术研究中心2012学术年会》
| 2012年
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摘要:
本文采用直流反应磁控溅射法制备氧化钒薄膜,研究和分析了溅射电压和薄膜沉积速率随氧流量的变化.在反应溅射过程中,溅射电压随氧流量的增加逐渐升高,而薄膜的沉积速率在低氧流量下随氧流量的增加快速升高,在高氧流量下则又随氧流量的增加而逐渐降低.对于确定的氧流量,顺序增氧时的溅射电压要低于逆序减氧所对应的溅射电压,顺序增氧时的沉积速率则要高于逆序减氧时对应的沉积速率.分析表明,通过控制溅射电压可以生长特定钒氧比和热阻性能要求的氧化钒薄膜.采用该方法制备的氧化钒薄膜的热阻特性,分析表明:在较低溅射电压下沉积的薄膜,薄膜方阻温度系数(TCR)最大绝对值所对应的温度相对较低;在较高溅射电压下沉积的薄膜,其相变特征较为明显,具有典型的半导体-金属(M-S)相变特征.
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魏雄邦;
王涛;
吴志明;
蒋亚东
- 《2007高技术新材料产业发展研讨会》
| 2007年
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摘要:
在氧化钒薄膜的直流磁控溅射制备中,氩流量是影响沉膜工艺以及薄膜织构和性能的重要因素之一.从氧化钒薄膜制备角度出发,研究了纯氩环境以及氧流量恒定的氩氧混合环境中溅射电压和薄膜沉积速率随氩流量的变化.实验结果有助于对氧化钒薄膜制备工艺进行优化,为氩气流量的选择提供参考。
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陈学荣;
胡军志;
韩文政
- 《第二届全国装备再制造工程学术会议暨首届青年再制造工程学术论坛》
| 2006年
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摘要:
采用离子束溅射和退火工艺,在K9玻璃基体上制备了氧化钒薄膜,并对其微观形貌及组成进行了研究.SEM结果表明,所制备的氧化钒薄膜均匀致密,晶粒尺寸达纳米量级,平均约50nm.由XPS分析可知,薄膜中钒的价态为+4价和+5价,薄膜由VO2和V2O5组成.自行研制了一套实时测量、动态显示测量结果的电阻-温度关系测试系统.应用该测试系统测量了薄膜电阻随温度变化的关系曲线,发现所制备的氧化钒薄膜具有显著的电阻突变特性,其低温段的激活能为0.3106eV,25°C时的电阻温度系数为-0.0406K-1.
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