作者： LUO;Lijuan;LU;Gang;LI;...

期刊： 武汉大学自然科学学报(英文版),2010年15(2):130-134 ISSN：1007-1202

通讯作者： Yiwen Tang

作者机构： [Yiwen; Lijuan; Gang; Bihui; Zhenghua] Institute of Nano-Science and Technology, Huazhong Normal University, Wuhan, China

通讯机构： [Yiwen Tang] I;Institute of Nano-Science and Technology, Huazhong Normal University, Wuhan, China

关键词： electrodeposition;ZnO;nanotubes;nanorods;array

摘要： In this study, ZnO nanotube and nanorod array films were respectively synthesized directly on F-doped SnO2 glass substrate (FTO) using a direct electrodeposition from a simple aqueous zinc salt solution. The effects of potential value, electrodeposition mode and solution stirring speed on the product morphology were investigated. Controlling the reaction under potentiostatic condition of -0.7 V at stirring speed of 300 r/min, large-scale nanotube arrays perpendicular to the substrate can be synthesized at a low temperature of 70 °C. By varying the reaction parameters, we can also obtain ZnO nanorod arrays. The results of X-ray diffraction, scanning electron microscopy, transmission electron microscopy and high-resolution transmission electron microscopy have been provided to characterize the structure and morphology of the nanotube and nanorod arrays. Experiment results show that the as-obtained ZnO has a single crystalline structure and c-axis oriented direction. The room-temperature photoluminescence spectrum of the ZnO nanotube array film displayed its high crystal property available as a photonic material. Electrodeposition is an effective method to prepare ZnO nanotube array films in quantity. © 2010 Wuhan University and Springer Berlin Heidelberg.

语种： 英文

作者： 吕刚;唐一文（唐一文）

期刊： 湖北成人教育学院学报,2010年16(2):18-20 ISSN：1673-3878

作者机构： [唐一文; 吕刚] 华中师范大学

关键词： 教学价值取向;教学的本真;教学有效知识量

摘要： 当前的教学不容乐观。本文从六个方面剖析了教学的现状,企盼引起同仁思考、深究,以利提高教学质量。

语种： 中文

作者： Zhang, Ke;Wang, Jianbo*;Lu, Xiaoli;Li, Luying;Tang, Yiwen（唐一文）;...

期刊： Journal of Physical Chemistry C,2009年113(1):142-147 ISSN：1932-7447

通讯作者： Wang, Jianbo

作者机构： [Zhang, Ke; Li, Luying; Wang, Jianbo; Lu, Xiaoli] Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China.;[Zhang, Ke; Li, Luying; Wang, Jianbo; Lu, Xiaoli] Wuhan Univ, Minist Educ, Key Lab Acoust & Photon Mat & Devices, Wuhan 430072, Peoples R China.;[Zhang, Ke; Li, Luying; Wang, Jianbo; Lu, Xiaoli] Wuhan Univ, Ctr Electron Microscopy, Wuhan 430072, Peoples R China.;[Tang, Yiwen; Jia, Zhiyong] Cent China Normal Univ, Inst Nanosci & Technol, Sch Phys & Technol, Wuhan 430079, Peoples R China.

通讯机构： [Wang, Jianbo] W;Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China.

摘要： Nickel hydroxyl sulfate (Ni(SO4)<inf>0.3</inf>(OH)<inf>1.4</inf>) nanobelts were obtained via a simple template-free hydrothermal reaction. The structural evolution of Ni(SO4)<inf>0.3</inf>(OH)<inf>1.4</inf> nanobelts during ex situ heat treatment and in situ electron irradiation are investigated using transmission electron microscopy (TEM) techniques mainly including bright-field imaging, selected-area electron diffraction combined with kinematic simulations, and high-resolution TEM. The transformation from Ni(SO4)<inf>0.3</inf>(OH) <inf>1.4</inf> to NiO can be observed in both ex situ and in situ experiments. Based on the TEM results, the structural evolution is clarified and the preliminary structural framework of Ni(SO4)0.3(OH)1.4 is proposed. This structural evolution also provides an excellent approach for large-scale production and/or modification of NiO nanoparticles. &copy;2009 American Chemical Society.

语种： 英文

作者： Feng, Shuanglong;Tang, Yiwen*（唐一文）;Xiao, Ting

期刊： Journal of Physical Chemistry C,2009年113(12):4809-4813 ISSN：1932-7447

通讯作者： Tang, Yiwen（唐一文）

作者机构： [Tang, Yiwen; Xiao, Ting; Feng, Shuanglong] Cent China Normal Univ, Inst Nanosci & Technol, Coll Phys & Technol, Wuhan 430079, Peoples R China.

通讯机构： [Tang, Yiwen] C;Cent China Normal Univ, Inst Nanosci & Technol, Coll Phys & Technol, Wuhan 430079, Peoples R China.

摘要： In the present work, we report for the first time an investigation on anodic oxidation of tin in an electrolyte of dimethyl sulfoxide (DMSO)/water mixtures containing citric acid in the trans-passive region. The anodization leads to the formation of flowerlike patterns composed of tin citrate complex nanostrips on tin substrates. The products were characterized using XRD, SEM, TEM, FTIR, and XPS measurements. The formation mechanism of the tin citrate complex microstructures is discussed and the influences of the voltage, citric acid concentration, and electrolyte composition on the morphology of the microstructures were investigated. The nanostrips with a smooth surface can be transformed to polycrystalline SnO2 nanostrips with a porous structure by a thermal annealing process. This work developed a simple, clean, and effective route for fabrication of large area SnO2 nanostructured films.

语种： 英文

作者： Xiao, Ting*;Tang, Yiwen（唐一文）;Jia, Zhiyong;Li, Dawei;Hu, Xiaoyan;...

期刊： Nanotechnology,2009年20(47):475603- ISSN：0957-4484

通讯作者： Xiao, Ting（唐一文）

作者机构： [Tang, Yiwen; Xiao, Ting; Jia, Zhiyong; Li, Dawei; Li, Bihui; Luo, Lijuan; Hu, Xiaoyan] Cent China Normal Univ, Coll Phys & Technol, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.

通讯机构： [Xiao, Ting] C;Cent China Normal Univ, Coll Phys & Technol, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.

摘要： This paper describes a facile solvothermal method to synthesize self-assembled three-dimensional (3D) Ni²⁺-Fe³⁺ layered double hydroxides (LDHs). Flower-like Ni²⁺-Fe³⁺ LDHs constructed of thin nanopetals were obtained using ethylene glycol (EG) as a chelating reagent and urea as a hydrolysis agent. The reaction mechanism and self-assembly process are discussed. After calcinating the as-prepared LDHs at 450 &deg;C in nitrogen gas, porous NiO/NiFe<inf>2</inf>O<inf>4</inf> nanosheets were obtained. This work resulted in the development of a simple, cheap, and effective route for the fabrication of large area Ni²⁺-Fe ³⁺ LDHs as well as porous NiO/NiFe<inf>2</inf>O<inf>4</inf> nanosheets. &copy;2009 IOP Publishing Ltd.

语种： 英文

作者： Lijuan Luo;Yiwen Tang（唐一文）;Bihui Li;Xiaoyan Hu

作者机构： [Yiwen Tang; Lijuan Luo; Bihui Li; Xiaoyan Hu] Institute of Nano-science and technology,Central China Normal University,Wuhan,430079,China

会议名称： The 60th Annual Meeting of The International Society of Electrochemistry(第60届国际电化学会议)

会议时间： 2009-8-16

会议地点： 北京

会议主办单位： 北京大学

会议论文集名称： The 60th Annual Meeting of The International Society of Electrochemistry(第60届国际电化学会议)论文集

语种： 英文

作者： Tang, Yiwen*（唐一文）;Hu, Xiaoyan;Chen, Meijuan;Luo, Lijuan;Li, Bihui;...

期刊： Electrochimica Acta,2009年54(10):2742-2747 ISSN：0013-4686

通讯作者： Tang, Yiwen（唐一文）

作者机构： [Tang, Yiwen; Li, Bihui; Luo, Lijuan; Chen, Meijuan; Hu, Xiaoyan] Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.;[Zhang, Lizhi] Cent China Normal Univ, Coll Chem, Key Lab Pesticide & Chem Biol, Minist Educ, Wuhan 430079, Peoples R China.

通讯机构： [Tang, Yiwen] C;Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.

关键词： CdSe;ZnO;Core-shell nanorod array;Photovoltaic;Solar cell

摘要： ZnO/CdSe core-shell nanorod array films were synthesized via a two-step method. ZnO nanorod array films were first grown on a TCO substrate, and then CdSe nanocrystals were deposited on the nanorods to form core-shell structured films. The resulting films were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and UV-vis absorption spectroscopy. Especially, dark-field images and transmission electron diffraction of the TEM were used to study the morphology and the chemical nanostructure of the ZnO/CdSe core-shell nanorods in detail. We investigated the photovoltaic performance of the resulting ZnO/CdSe core-shell nanorod array films as solar cell photoanodes. Parameters, such as the length of the ZnO nanorods, the shell phase structure and the deposition time of the CdSe nanocrystals were found to affect the photovoltaic performance of the solar cell. This study provides a facile method to prepare nanocomposite photoanodes of solar cells, and gives some insight about the fundamental mechanisms that improve the performance. © 2008 Elsevier Ltd. All rights reserved.

语种： 英文

作者： Xiao, Ting;Tang, Yiwen*（唐一文）;Jia, Zhiyong;Feng, Shuanglong

期刊： Electrochimica Acta,2009年54(8):2396-2401 ISSN：0013-4686

通讯作者： Tang, Yiwen（唐一文）

作者机构： [Tang, Yiwen; Xiao, Ting; Jia, Zhiyong; Feng, Shuanglong] Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.

通讯机构： [Tang, Yiwen] C;Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.

关键词： SnO2/Mg2SnO4;Nanoparticles;Li-ion batteries;Anode materials;Pyrolysis

摘要： Uniform crystalline MgSn(OH)6 nanocubes were synthesized by a hydrothermal method. The influences of reaction conditions were investigated and the results showed that the solvent constituents significantly affected the shape and size of MgSn(OH)6·SnO2/Mg2SnO4 has been obtained by thermal treatment at 850 °C for 8 h under a nitrogen atmosphere using MgSn(OH)6 as the precursor. The electrochemical tests of SnO2/Mg2SnO4 revealed that SnO2/Mg2SnO4 has a higher capacity and better cyclability compared to pure SnO2 or Mg2SnO4. The electrochemical performance of SnO2/Mg2SnO4 was sensitive to the size of the nanoparticles. The lithium-driven structural and morphological changes of the electrode after cycling were also studied by the ex-situ XRD pattern and TEM tests. This work indicates that SnO2/Mg2SnO4 is a promising anode material candidate for application in Li-ion batteries. © 2008 Elsevier Ltd. All rights reserved.

语种： 英文

作者： Ting Xiao;Yiwen Tang（唐一文）

作者机构： [Yiwen Tang; Ting Xiao] Center for Nanoscience and Nanotechnology,Department of Physics,Central China of Normal University,Wuhan 430079,Hubei P.R.China

会议名称： The 60th Annual Meeting of The International Society of Electrochemistry(第60届国际电化学会议)

会议时间： 2009-8-16

会议地点： 北京

会议主办单位： 北京大学

会议论文集名称： The 60th Annual Meeting of The International Society of Electrochemistry(第60届国际电化学会议)论文集

语种： 英文

作者： Jia, Zhiyong;Tang, Yiwen*（唐一文）;Luo, Lijuan;Li, Bihui;Chen, Zhenghua;...

期刊： Journal of Colloid and Interface Science,2009年334(2):202-207 ISSN：0021-9797

通讯作者： Tang, Yiwen（唐一文）

作者机构： [Tang, Yiwen; Jia, Zhiyong; Li, Bihui; Luo, Lijuan; Chen, Zhenghua] Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.;[Zheng, He; Wang, Jianbo] Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China.;[Zheng, He; Wang, Jianbo] Wuhan Univ, Ctr Electron Microscopy, Wuhan 430072, Peoples R China.

通讯机构： [Tang, Yiwen] C;Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.

关键词： Nanotubes;Precipitation;Room temperature;Single crystal;Sonochemical

摘要： CaSn(OH)<inf>6</inf> nanotubes were fabricated by sonochemical precipitation method at room temperature. A direct rolling process from nanosheets to nanotubes was expected for the synthesis of CaSn(OH)<inf>6</inf> nanotubes. The transient CaSn(OH)<inf>6</inf> nanosheets are formed as intermediates produced by the spontaneous self-assembly and transformation of amorphous colloid clusters. During the crystallization process of intermediate nanosheets, the relaxation of surface strain in the nanosheet interfaces can induce the nanosheets to roll up to form nanotubes under ultrasonic conditions. In this synthesis, the addition of Na<inf>2</inf>CO<inf>3</inf> seems to play an important role in the formation, size, and shape control of the nanotubes. Investigations into the stability performance of the nanotubes indicate that the morphologies are very sensitive to pH and temperature. The method suggests a general strategy for the design and fabrication of functional single-crystalline nanotubes through an intermediate nanosheet rolling process. The in vitro fabrication of such single crystal nanotubes could shed light on fundamental mechanisms for closed hollow nanostructures. Furthermore, nanotubes produced in high yield and at low cost are envisioned to have applications in areas ranging from medicine to pharmaceuticals through to materials science. &copy;2009 Elsevier Inc. All rights reserved.

语种： 英文

作者： Chen, Meijuan;Tang, Yiwen*（唐一文）;Li, Bihui;Luo, Lijuan

期刊： JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2009年9(2):1505-1508 ISSN：1533-4880

通讯作者： Tang, Yiwen（唐一文）

作者机构： [Tang, Yiwen; Li, Bihui; Luo, Lijuan; Chen, Meijuan] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.

通讯机构： [Tang, Yiwen] C;Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.

会议名称： 6th International Conference on Nanoscience and Technology

会议时间： JUN 04-06, 2007

会议地点： Beijing, PEOPLES R CHINA

会议主办单位： [Chen, Meijuan;Tang, Yiwen;Li, Bihui;Luo, Lijuan] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.

关键词： CdS/ZnO;Film;Photoelectrochemical

摘要： In this paper we reported the preparation and characterization of the nanostrutured CdS/ZnO nanoarray thin film, based on the free-standing ZnO nanorod-array. The method was simple and low-cost. The ZnO nanorod-arrays were synthesized on F-doped tin oxide glass (TCO) substrate by hydrothermal method, then coated with CdS nanoparticles closely via chemical bath deposition method. The resulting thin films showed better photoelectrochemical performances than those of CdS/ZnO nanoparticles thin films. Under the illumination of AM 1.5 simulated sunlight (30 mW/cm2), the photocurrent of the samples achieved to 0.72 mA/cm2.

语种： 英文

作者： 龚书生;唐一文（唐一文）;徐亮;李必慧;陈正华

期刊： 华中师范大学学报(自然科学版),2008年42(1):77-80 ISSN：1000-1190

作者机构： [唐一文; 龚书生; 徐亮; 李必慧; 陈正华] 华中师范大学物理科学与技术学院;华中师范大学物理科学与技术学院 武汉430079

关键词： 碳纳米管;聚丙烯酸;表征;化学修饰法

摘要： 采用化学气相沉积法（CVD）制备多壁碳纳米管（MWNTs），并用酸纯化多壁碳纳米管（MWNTs）．为了改进碳纳米管在聚合物中的性能，采用化学修饰法制备了多壁碳纳米管／聚丙烯酸（MWNTs／PAA）复合材料，并用扫描电镜（SEM）、透射电镜（TEM）和红外光谱（FT-IR）对其进行了表征．实验结果表明，聚丙烯酸能均匀地包覆在碳纳米管表面，而且多壁碳纳米管／聚丙烯酸复合材料能很好地分散在水和苯丙乳液中．

语种： 中文

作者： 徐亮;唐一文（唐一文）;龚书生;陈正华;冯双龙

期刊： 腐蚀与防护,2008年29(6):309-312 ISSN：1005-748X

通讯作者： Xu, L.

作者机构： 华中师范大学物理科学与技术学院,武汉,430079;[唐一文; 龚书生; 陈正华; 徐亮; 冯双龙] 华中师范大学

通讯机构： Central China Normal University, China

关键词： 无机-有机富锌涂层;碳纳米管;硅丙乳液;防腐蚀;耐空蚀

摘要： 在常见的水性无机硅酸盐富锌涂料中添加适量的硅丙乳液及碳纳米管,制成了无机-有机复合水性富锌涂料。对几种不同配比涂层的主要力学性能、电化学性能、耐盐雾性能及耐空蚀性能进行了测试分析,结果表明当硅丙乳液和碳纳米管分别占基料的20%和1%,颜基比为2:1时,涂料的基料稳定,喷涂粘度适中;同时涂层在保持了无机富锌涂料优异耐腐蚀性能的基础上,其耐空蚀性能也得到了很大提高。

语种： 中文

作者： 唐一文（唐一文）;徐亮;陈正华;冯双龙;龚书生

期刊： 武汉大学学报(理学版),2008年54(1):51-54 ISSN：1671-8836

作者机构： [唐一文; 徐亮; 陈正华; 冯双龙; 龚书生] 华中师范大学物理科学与技术学院;华中师范大学物理科学与技术学院 湖北武汉430079

关键词： 富锌涂料;空蚀机理;阴极保护;极化曲线;交流阻抗谱

摘要： 在质量分数为3％的NaCl溶液中，利用磁致伸缩空蚀试验机研究了碳纳米管改性的无机-有机复合水性富锌涂料的空蚀行为．测量了静态和空蚀条件下涂层的极化曲线，比较了常态和阴极保护下空蚀时的腐蚀电流变化，通过分析涂层在静态、空蚀以及阴极保护下空蚀的交流阻抗谱（EIS），进一步探讨了空蚀机理．结果表明：涂层的空蚀行为是力学因素和电化学腐蚀因素协同作用的结果，在阴极保护条件下，电化学腐蚀减弱，空蚀过程以力学作用为主．

语种： 中文

作者： 卢小莉;张珂;李露颖;王建波;唐一文（唐一文）;...

期刊： 电子显微学报,2008年27(4):275-281 ISSN：1000-6281

作者机构： [张珂; 李露颖; 卢小莉; 王建波] 武汉大学,物理科学与技术学院,声光材料与器件教育部重点实验室,湖北,武汉,430072;[张珂; 李露颖; 卢小莉; 王建波] 武汉大学,电子显微镜中心,湖北,武汉,430072;[唐一文; 贾志勇] 华中师范大学物理科学与技术学院纳米研究院,湖北,武汉,430079

关键词： 纳米带;羟基硫酸镍;热处理;电子辐照;选区电子衍射

摘要： 利用透射电子显微术,主要包括亮场像形貌观察、选区电子衍射结合运动学模拟计算和高分辨电子显微像,对水热法制备的结晶良好的Ni（SO_4）_(0.3)（OH）_(1.4)纳米带结构和生长形态进行了表征,并结合利用在不同温度的离线热处理及原位电子辐照,对从结晶良好的Ni（SO_4）_(0.3)（OH）_(1.4)纳米带到疏松多孔的NiO纳米带,最后到NiO纳米颗粒的结构演变进行了系统研究,得到了Ni（SO_4）_(0.3)（OH）_(1.4)和NiO的取向关系,揭示了这一系列过程的结构演变并给出了Ni（SO_4）_(0.3)（OH）_(1.4)的初步结构模型。

语种： 中文

作者： Hu, Yan;Zheng, Zhi;Jia, Huimin;Tang, Yiwen（唐一文）;Zhang, Lizhi*

期刊： Journal of Physical Chemistry C,2008年112(33):13037-13042 ISSN：1932-7447

通讯作者： Zhang, Lizhi

作者机构： [Zhang, Lizhi; Hu, Yan] Cent China Normal Univ, Minist Educ, Key Lab Pesticide & Chem Biol, Coll Chem, Wuhan 430079, Peoples R China.;[Zheng, Zhi; Jia, Huimin] Xuchang Univ, Inst Surface Micro & Nano Mat, Xuchang 461000, Peoples R China.;[Tang, Yiwen] Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.

通讯机构： [Zhang, Lizhi] C;Cent China Normal Univ, Minist Educ, Key Lab Pesticide & Chem Biol, Coll Chem, Wuhan 430079, Peoples R China.

摘要： FeS and FeS₂ nanosheet films were selectively synthesized on iron substrates through one-step hydrothermal treatment of iron foil and sulfur powder in the presence or absence of hydrazine. The resulting FeS_x (x = 1, 2) nanosheet films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) and used as novel photocathodes in tandem solar cells with dyesensitized TiO₂ nanorod films as the corresponding photoanode. The photovoltaic properties of the tandem dye-sensitized solar cells were carefully studied. We found that the performance of the FeS nanosheet film photocathode was better than that of the FeS₂ one in the tandem dye-sensitized solar cells. In the case of the FeS nanosheet film photocathode, a short circuit photocurrent (I_sc) of 2.53 mA/cm², an open circuit photovoltage (V_oc) of 0.60 V, a fill factor (FF) of 0.31, and conversion efficiency (&eta;) of 1.32% were obtained under an illumination of 100 mW/cm². This study suggests that these iron sulfide nanosheet films are attractive photocathodes for tandem dye-sensitized solar cells. &copy;2008 American Chemical Society.

语种： 英文

作者： Jia, Zhiyong;Tang, Yiwen*（唐一文）;Luo, Lijuan;Li, Bihui

期刊： Crystal Growth & Design,2008年8(7):2116-2120 ISSN：1528-7483

通讯作者： Tang, Yiwen（唐一文）

作者机构： [Tang, Yiwen; Jia, Zhiyong; Li, Bihui; Luo, Lijuan] Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.

通讯机构： [Tang, Yiwen] C;Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.

摘要： Low-dimensional single-crystalline CdCO3 nanostructures such as nanowires, nanobelts, nanorolls, and one-dimensional (1D) hierarchical structures have been synthesized through a convenient, low-temperature hydrothermal method, and the products have been characterized by X-ray diffraction, transmission electron microscopy, field emission scanning electron microscopy, and selected area electronic diffraction. The influences of ammonia concentration, reaction time, and temperature on the morphologies of CdCO 3 have been investigated. In addition, these low-dimensional nanostructures can be transformed into oriented CdO nanoporous structures through heat treatment processing, and the corresponding shapes can be preserved completely. © 2008 American Chemical Society.

语种： 英文

作者： 杨修文;祝生祥;唐一文（唐一文）

期刊： 光学技术,2007年33(6):896-898 ISSN：1002-1582

通讯作者： Yang, X.-W.(yangxw66@sohu.com)

作者机构： [杨修文] Department of Physics, Yunyang Teachers College, Danjiangkou 442700, China;[祝生祥] Pohl Institute of Solid Physics, Tongji University, Shanghai 200092, China;[唐一文] Institute of Nano-Science and Technology, Central China Normal University, Wuhan 430079, China

通讯机构： [Yang, X.-W.] D;Department of Physics, Yunyang Teachers College, China

关键词： 光纤探针;传输效率;化学腐蚀

摘要： 用实验方法测量了光纤探针的传输效率随光纤圆锥角的变化关系，给出了传输效率曲线。通过测定探针传输效率的实验可以看到，只要光纤探针的锥角在30°～55°范围内，就具有高透过率、高分辨率纳米微探针。测量了传输效率与光波波长的关系。

语种： 中文

作者： Chen, Zhigang;Tang, Yiwen（唐一文）;Yang, Hong;Xia, Yongyao;Li, Fuyou*;...

期刊： Journal of Power Sources,2007年171(2):990-998 ISSN：0378-7753

通讯作者： Li, Fuyou

作者机构： Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China.;Fudan Univ, Adv Mat Lab, Shanghai 200433, Peoples R China.;Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Peoples R China.;[Li, Fuyou] Fudan Univ, Dept Chem, Handan Rd 220, Shanghai 200433, Peoples R China.

通讯机构： [Li, Fuyou] F;Fudan Univ, Dept Chem, Handan Rd 220, Shanghai 200433, Peoples R China.

关键词： Dye-sensitized solar cells;Quasi-solid/solid-state electrolytes;Textural channel;TiO2 film

摘要： Novel nanocrystalline TiO<inf>2</inf> films with the textural channels are obtained for dye-sensitized solar cells (DSSCs). The textural channels consisting of the cracks on the surface and the nanopores with average diameter of about 41 nm are produced by packaging ZnO nanowires with diameter of 30-50 nm into TiO<inf>2</inf> films and subsequently etching ZnO nanowires by hydrochloric acid. The performances of DSSCs based on novel TiO<inf>2</inf> films (with the textural channels) and traditional TiO<inf>2</inf> films (without the textural channels) are investigated, respectively. When two kinds of typical quasi-solid-state electrolytes and one kind of solid-state electrolyte are used, the energy conversion efficiencies of DSSCs from novel TiO<inf>2</inf> films are improved by 20-30% compared to that from traditional TiO<inf>2</inf> films. The reasons for the great improvement are investigated chiefly by UV-vis absorption spectra, field emission-scanning electron microscope (FE-SEM) and electrochemical impedance spectroscopy (EIS) technique. The results show that the introduction of the textural channels facilitates better penetration of quasi-solid/solid-state electrolytes into the nanopores of novel TiO<inf>2</inf> films and thus results in better interfacial/electrical contact and faster interfacial reaction. &copy;2007 Elsevier B.V. All rights reserved.

语种： 英文

作者： Suliman, Ali Elkhdir*;Tang, Yiwen（唐一文）;Xu, Liang

期刊： Solar Energy Materials and Solar Cells,2007年91(18):1658-1662 ISSN：0927-0248

通讯作者： Suliman, Ali Elkhdir

作者机构： [Tang, Yiwen; Suliman, Ali Elkhdir; Xu, Liang] Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Hubei, Peoples R China.

通讯机构： [Suliman, Ali Elkhdir] C;Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Hubei, Peoples R China.

关键词： ZnO nanoparticle;nanosheet;thin film;solar cell;fill factor

摘要： ZnO nanoparticles which have diameter of 15 nm were prepared by hydrothermal method. ZnO nanosheets were obtained by re-hydrothermal treatment of ZnO nanoparticles. The phase and morphology were investigated by using transmission electron microscope, scanning electron microscope and X-ray diffraction. Also, absorbance spectra were measured by using a UV-vis spectrophotometer. A fill factor of 0.55, short-circuit current of 2.059 mA/cm², open-circuit voltage of 0.593 V and an overall light to electricity conversion efficiency of 1.55% for the solar cell based on ZnO nanosheets were obtained. &copy;2007 Elsevier B.V. All rights reserved.

语种： 英文