欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用ZnO纳米棒阵列为模板在氧化铟锡（ITO）导电玻璃衬底上制备了CdS/TiO2纳米管复合薄膜.利用扫描电子显微镜（SEM）、X射线衍射仪（XRD）、紫外-可见吸收分光光度计（UV-Vis）及表面光电压谱（SPS）研究了不同CdS沉积时间对复合薄膜的形貌、晶体结构、光电性质的影响.研究结果表明,TiO2纳米管阵列表面沉积5minCdS纳米颗粒后,其表面光电压信号得到增强,并且其吸收光谱可拓展到可见光区;与吸收光谱相对应,在可见光区出现新的光电压谱响应区,这一现象说明与CdS复合可显著提高TiO2纳米管阵列的光电特性;随着CdS纳米颗粒沉积时间的增加,复合纳米管阵列薄膜在可见光区域的光电压强度逐渐减弱,我们用不同的电荷转移机制对此现象进行了详细的讨论和解释.除此之外,我们对TiO2纳米管阵列结构的比表面积对复合结构的光电特性影响也做了深入的讨论.
英文摘要：
Well-aligned CdS/TiO2 nanotube array composite film was fabricated on the indium-doped tin oxide（ITO） substrate by templating ZnO nanorod array film.The effects of CdS deposition time on the morphology,crystal structure,photo-electric properties of TiO2/CdS composite film were investigated via scanning electron microscopy（SEM）,X-ray diffraction（XRD）,ultraviolet-visible absorption spectrum（UV-Vis） and surface photovoltage spectrum（SPS）.The results showed that the absorbance of composite film extended to the visible region compared with the pristine TiO2 nanotube arrays.The SPS also showed a new response region relative to the absorption spectrum.This result indicated a remarkable photo-electric conversion efficiency improvement in the visible region.We also found that the SPS response intensity of composite film decreased gradually in the visible region with the increase of CdS deposition time.We interpreted and discussed this phenomenon using distinct photo-induced charge generation and transfer mechanisms detailedly.Despite this,we also discussed the influence of surface-to-volume ratio on the final photo-electric properties for the CdS/TiO2 nanotube array composite film.
同期刊论文项目
同项目期刊论文
The photoelectrochemical properties of N3 sensitized CaTiO3 modified TiO2 nanocrystalline electrodes
The enhanced photoelectric conversion efficiency of N3 sensitized MgTiO3 modified nanoporous TiO2 el
Tunability of the band energetics of nanostructured SrTiO3 electrodes for dye sensitized solar cells
Modulating the surface states of electric field assembled CuO nanowires by electrochemical depositio
Biomimetic syntheses of pure or doped metal hydroxide nitrate thin films by a dual-template approach
Growth of PbS Crystals under a BSA Monolayer in the Presence of Kinetically Controlled Ammonia Diffu
Exploration of transmission efficiency and quantitative measurement of the Axis Ultra electron spect
Antireflection and Photovoltaic Properties of Microstructures Design on the Single Crystalline Silic
Preparation of CuIn(S(x)Se(1-x))(2) thin films with tunable band gap by controlling sulfurization te
Preparation of Highly Crystalline TiO(2) Nanostructures by Acid-assisted Hydrothermal Treatment of H
Path-related unexpected injection charges in BaTiO(3) ferroelectric thin films studied by Kelvin for
Nanopatterning on silicon surface using atomic force microscopy with diamond-like carbon (DLC)-coate
Impact of pH Value on Composition, Structure and Photo-Electric Properties of Electrodeposited CuInS
ZnO nanowire Schottky barrier ultraviolet photodetector with high sensitivity and fast recovery spee
The current image of single SnO(2) nanobelt nanodevice studied by conductive atomic force microscopy
The unsaturated photocurrent controlled by two-dimensional barrier geometry of a single ZnO nanowire
Preparation of sodium titanate nanotubes modified by CdSe quantum dots and their photovoltaic charac
Temperature-control led growth and optical properties of ZnO nanorods with quadrangular and hexagona
Effect of the interaction between bovine serum albumin Langmuir monolayer and calcite on the crystal
期刊信息
位置：