需要金幣： 1000 個(gè)金幣 |
資料包括：完整論文 |  |
 |
| 轉(zhuǎn)換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字?jǐn)?shù)：14283 |  | |
| 折扣與優(yōu)惠：團(tuán)購(gòu)最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要：本文采用水熱法制備質(zhì)子鈦酸鹽，并在制備過程中分別加入Sn、Ni、Zn鹽，最后在高溫下燒結(jié)制得含不同金屬離子的二氧化鈦顆粒。通過X射線衍射(XRD)和透射電鏡(TEM)對(duì)樣品的晶體結(jié)構(gòu)和形貌進(jìn)行了表征。通過紫外-可見光光譜(UV-Vis)對(duì)樣品的光吸收特性進(jìn)行了分析。采用光電流-光電壓曲線(I-V曲線)測(cè)試電池的短路光電流、開路光電壓以及太陽能電池的光電轉(zhuǎn)化效率。采用交流阻抗(EIS)、強(qiáng)度調(diào)制光電流譜(IMPS)和強(qiáng)度調(diào)制光電壓譜(IMVS)研究電子傳輸動(dòng)力學(xué)性能。研究發(fā)現(xiàn)，100℃樣品中摻雜離子后的二氧化鈦納米顆粒電池的光電性能有了顯著的提高，尤其是摻鋅樣品的光電轉(zhuǎn)換效率最高，達(dá)到了2.97％，較納米顆粒的性能有1.68倍的提高。電子傳輸動(dòng)力學(xué)性能研究表明顆粒樣品的電子傳輸動(dòng)力學(xué)性能都比較差，但摻Sn樣品的傳輸動(dòng)力學(xué)性能要好于其他三個(gè)樣品。150℃樣品中二氧化鈦納米顆粒樣的光電性能比摻雜樣好，為1.82％。而四種樣品的電子傳輸動(dòng)力學(xué)性能同樣較差。 關(guān)鍵詞：染料敏化太陽能電池；二氧化鈦；離子摻雜；光電性能；電子傳輸動(dòng)力學(xué)
Abstract: In this work, protonated titante were prepared by hydrothermal method. Sn, Ni and Zn salt was added into the particles in preparation process. Subsequently titanium dioxide particles doped with these metal cation were obtained after calcination at 500 ℃. The crystal structure and morphology of samples were represented by X-ray diffraction(XRD) and transmission electron microscope(TEM). Light absorption characteristics were analyzed by ultraviolet visible (UV-Vis). Photoelectric properties were tested by photocurrent-voltage(I-V) Curve. Electrochemical impendence spectroscopy(EIS), intensity-modulated photocurrent spectroscopy(IMPS) and intensity-modulated voltage spectroscopy(IMVS) were used to investigate the kinetics process of these cells. It is indicated that photoelectric properties of titanium dioxide nanoparticles doped with metal ions were significantly improved in samples prepared at 100℃.The photoelectric properties of the sample doped with Zn was the best. The photoelectric conversion efficiency of the sample is 2.97％. It is increased by 1.68 times as compared to that of nanoparticles. The electron transfer kinetics property show that particle samples all have poor performance, but the sample doped with Sn is better than the others. In samples prepared at 150℃,the photoelectric conversion efficiency of nanoparticle sample is 1.82％.It is better than the simples doped with metal cation. And electron transport kinetics performance of these cells are all poor. Keywords: dye sensitized solar cell(DSSC);titanium dioxide;ion doping; photoelectric properties; electron transport dynamics
|
