Effects of Experimental Conditions on The Morphology and Photocurrent Density of TiO2 Nanorods

SUN Xian-miao; SUN Qiong; XIE Cui-cui; DONG Li-feng

doi:10.3788/fgxb20133403.0257

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Effects of Experimental Conditions on The Morphology and Photocurrent Density of TiO₂ Nanorods

更新时间：2020-08-12

- Effects of Experimental Conditions on The Morphology and Photocurrent Density of TiO₂ Nanorods
- Chinese Journal of Luminescence Vol. 34, Issue 3, Pages: 257-261(2013)
- 作者机构：
  
  1. 青岛科技大学材料科学与工程学院,山东青岛,266042
  2. 美国密苏里州立大学物理、天文与材料科学系, 密苏里州斯普林菲尔德,65897
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20133403.0257
  CLC： O484.4
- Received：12 October 2012，
  
  Revised：19 December 2012，
  
  Published：10 March 2013
- 稿件说明：
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孙先淼, 孙琼, 谢翠翠, 董立峰. 实验条件对二氧化钛纳米棒形貌和光电流密度的影响[J]. 发光学报, 2013,34(3): 257-261

SUN Xian-miao, SUN Qiong, XIE Cui-cui, DONG Li-feng. Effects of Experimental Conditions on The Morphology and Photocurrent Density of TiO2 Nanorods[J]. Chinese Journal of Luminescence, 2013,34(3): 257-261
孙先淼, 孙琼, 谢翠翠, 董立峰. 实验条件对二氧化钛纳米棒形貌和光电流密度的影响[J]. 发光学报, 2013,34(3): 257-261 DOI： 10.3788/fgxb20133403.0257.

SUN Xian-miao, SUN Qiong, XIE Cui-cui, DONG Li-feng. Effects of Experimental Conditions on The Morphology and Photocurrent Density of TiO2 Nanorods[J]. Chinese Journal of Luminescence, 2013,34(3): 257-261 DOI： 10.3788/fgxb20133403.0257.

摘要

采用简单的水热合成法

以四异丙醇钛为钛源

制备出整齐有序的二氧化钛纳米棒阵列。探索了钛源浓度、反应液酸度、反应时间、温度等实验条件对纳米棒的形貌和光电流密度的影响。实验结果表明:钛源浓度和反应液酸度对纳米棒的生长有非常大的影响

最佳反应液的组分为10 mL去离子水、10 mL盐酸和0.4 mL钛源。另外

随着反应时间的增加

纳米棒的长度会明显的增加

但纳米棒的直径和光电流密度却变化不大。同时

纳米棒的长度也随着反应温度的增高而增加

其光电流密度随之呈现先增大后减小的趋势

但其直径没有明显改变。

Abstract

Oriented TiO

nanorod arrays were directly synthesized on fluorine-doped tin oxide glass substrates through a hydrothermal method. Experimental results demonstrate that a number of reaction parameters including acidity

reactant concentration

growth time and reaction temperature can affect the morphology and photocurrent density of TiO

nanorods. For example

the length of the nanorods significantly increases with the growth time or reaction temperature

while the diameter is only influenced by reaction temperature but not growth time. Photocurrent density firstly improves but then decreases with the reaction temperature

and there are no clear correlations between photocurrent density and growth time. These results will provide helpful information on the optimization of reaction parameters for the synthesis of oriented rutile TiO

nanorods with high photoelectrical conversion efficiency for solar cell applications.

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references

O'regan B, Grtzel M. A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films [J]. Nature, 1991, 353(6436):737-740.[2] Liu Z C, Zheng J T, Zhao D F, et al. Effects of forbidden bandwidth and optical absorption coeffcient on photocatalytic ability of TiO2 [J]. Chin. J. Lumin.(发光学报), 2012, 33(12):1329-1334 (in Chinese).[3] Yang X, Qu Y, Fan Y, et al. Y-branched TiO2 nanotubes prepared by electrochemical anodization [J]. Chin. J. Lumin.(发光学报), 2012, 33(3):269-274 (in Chinese).[4] Xin X, Scheiner M, Ye M, et al. Surface-treated TiO2 nanoparticles for dye-sensitized solar cells with remarkably enhanced performance [J]. Langmuir, 2011, 27(23):14594-14598.[5] Guo W, Chen W, Wang X X, et al. Rectangular bunched rutile TiO2 nanorod arrays grown on carbon fiber for dye-sensitized solar cells [J]. J. Am. Chem. Soc., 2012, 134(9):4437-4441. [6] Zhu K, Neale N R, Miedaner A, et al. Enhanced charge-collection efficiencies and light scattering in dye-sensitized solar cells using oriented TiO2 nanotubes arrays [J]. Nano Lett., 2007, 7(1):69-74.[7] Dloczik L, Ileperuma O, Lauermann I, et al. Dynamic response of dye-sensitized nanocrystalline solar cells:Characterization by intensity-modulated photocurrent spectroscopy [J]. J. Phys. Chem. B, 1997, 101(49):10281-10289.[8] Liu B, Aydil E S. Growth of oriented single-crystalline rutile TiO2 nanorods on transparent conducting substrates for dye-sensitized solar cells [J]. J. Am. Chem. Soc., 2009, 131(11):3985-3990.[9] Zhou Z, Fan J, Wang X, et al. Effect of highly ordered single-crystalline TiO2 nanowire length on the photovoltaic performance of dye-sensitized solar cells [J]. ACS Appl. Mater. Interfaces, 2011, 3(11):4349-4353.

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