P3HT与CdTe纳米枝晶p-n异质结敏化ZnO纳米管阵列的光电化学研究
收稿日期: 2013-09-03
网络出版日期: 2013-11-14
基金资助
项目受国家自然科学基金（Nos. 21173065，20573031）；河北省自然科学基金（No. B2010000856）；河北科技大学博士启动基金（QD201050）和校立科研基金（XL201255）资助.
A Photoelectrochemical Study of p-n Heterojunction between P3HT and Nanodendrite CdTe Sensitized ZnO Nanotube Array
Received date: 2013-09-03
Online published: 2013-11-14
Supported by
Project supported by the National Natural Science Foundation of China (Nos. 21173065, 20573031), the Natural Science Foundation of Hebei Province of China (No. B2010000856), the Doctoral Starting up Foundation (QD201050) and School fund (XL201255) of Hebei University of Science and Technology, China.
裴娟 , 郝彦忠 , 范龙雪 , 孙宝 , 孙硕 , 裴娟 . P3HT与CdTe纳米枝晶p-n异质结敏化ZnO纳米管阵列的光电化学研究[J]. 化学学报, 2014 , 72(1) : 114 -120 . DOI: 10.6023/A13080901
In this paper, we fabricated a semiconductor-sensitized solar cell using the photoelectrode based on poly(3-hexylthiophene) (P3HT) modified nanodendrite CdTe coated ZnO nanotube array (P3HT@CdTe@ZnO) composite film. One-dimensional vertically ordered ZnO nanotube arrays were prepared on ITO conductive glass substrate by electrochemical etching of the electrodeposited ZnO nanorod arrays in alkaline solution. Nanodendrite CdTe was electrodeposited on ZnO nanotube array, and a CdTe nanodendrite coated ZnO nanotube array shell-core structure was obtained. Different CdTe nanodendrite length could be obtained by adjusting the total charge quantity applied during deposition. Then a thin P3HT layer was spin-coated onto the above nanostructure, and a P3HT@CdTe@ZnO composite film was obtained. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and energy dispersive-ray spectroscopy (EDS) were used to characterize the samples. The photoelectrochemical properties of the above samples were studied, and the results showed that CdTe and P3HT were excellent n-type and p-type materials. A suitable length of CdTe nanodendrite could improve the photovoltaic properties of the solar cell, which was attributed to the enhanced light absorption in the visible region and the decrease in the recombination of photogenerated electrons and holes due to the multiple channels provided by nanodendrites. It has been demonstrated that the favourable hole transportation material P3HT coated on the surface of the CdTe@ZnO shell-core nanotube array largely improved the photoelectrochemical performance. A heterojunction was formed in the interface between n-type CdTe and p-type P3HT, and played an important role in the efficient charge separation and fast charge transportation. A semiconductor-sensitized solar cell with the P3HT@CdTe@ZnO film as photoactive layer was fabricated. The photovoltaic properties of the semiconductor-sensitized solar cell was studied, and the mechanism of the solar cell was investigated. An energy conversion efficiency up to 1.38% with short circuit current density (Jsc) 8.980 mA/cm2, open circuit voltage (Voc) 0.599 V, fill factor (FF) 0.26 respectively was obtained with the designed semiconductor-sensitized solar cell.
Key words： ZnO nanotube; nanodendrite CdTe; P3HT; semiconductor-sensitized solar cell
[1] Zhang, Q.-B.; Feng, Z.-F.; Han, N.-N.; Lin, L.-L.; Zhou, J.-Z.; Lin, Z.-H. Acta Phys.-Chim. Sin. 2010, 26, 2927. (张桥保, 冯增芳, 韩楠楠, 林玲玲, 周剑章, 林仲华, 物理化学学报, 2010, 26, 2927.)
[2] Vanalakar, S. A.; Pawar, R. C.; Suryawanshi, M. P.; Mali, S. S.; Dalavi, D. S.; Moholkar, A. V.; Sim, K. U.; Kown, Y. B.; Kim, J. H.; Patil, P. S. Mater. Lett. 2011, 65, 548.
[3] Mali, S. S.; Devanb, R. S.; Ma, Y.-R.; Betty, C. A.; Bhosale, P. N.; Panmand, R. P.; Kale, B. B.; Jadkar, S. R.; Patil, P. S.; Kim, J.-H.; Hong, C. K. Electrochim. Acta 2013, 90, 666.
[4] Gao, J.-B.; Luther, J. M.; Semonin, O. E.; Ellingson, R. J.; Nozik, A. J.; Beard, M. C. Nano Lett. 2011, 11, 1002.
[5] Hao, Y.-Z.; Wang, W. Acta Chim. Sinica 2007, 65, 489. (郝彦忠, 王伟, 化学学报, 2007, 65, 489.)
[6] Leschkies, K. S.; Divakar, R.; Basu, J.; Enache-Pommer, E.; Boercker, J. E.; Carter, C. B.; Kortshagen, U. R.; Norris, D. J.; Aydil, E. S. Nano Lett. 2007, 7, 1793.
[7] Han, Z.-Z.; Wei, L.-Y.; Tang, L.-L.; Chen, C.-Q.; Pan, H.-B.; Chen, J.-Z. J. Power Sources 2013, 239, 546.
[8] Lan, G.-Y.; Yang, Z.; Lin, Y.-W.; Lin, Z.-H.; Liao, H.-Y.; Chang, H.-T. J. Mater. Chem. 2009, 19, 2349.
[9] Yu, P.-R.; Zhu, K.; Norman, A. G.; Ferrere, S.; Frank, A. J.; Nozik, A. J. Phys. Chem. B 2006, 110, 25451.
[10] Baker, D. R.; Kamat, P. V. Adv. Funct. Mater. 2009, 19, 805.
[11] Vanalakar, S. A.; Mali, S. S.; Pawar, R. C.; Tarwal, N. L.; Moholkar, A. V.; Kim, J. H.; Patil, P. S. J. Appl. Phys. 2012, 112, 044302.
[12] Wang, H.; Bai, Y.-S.; Zhang, H.; Zhang, Z.-H.; Li, J.-H.; Guo, L. J. Phys. Chem. C 2010, 114, 16451.
[13] Kamat, P. V. J. Phys. Chem. C 2008, 112, 18737.
[14] Plass, R.; Pelet, S.; Krueger, J.; Grätzel, M. J. Phys. Chem. B 2002, 106, 7578.
[15] Hao, Y.-Z.; Ma, J.-X.; Sun, B.; Li, Y.-P.; Ren, J.-J. Acta Chim. Sinica 2010, 68, 33. (郝彦忠, 马洁霞, 孙宝, 李英品, 任聚杰, 化学学报, 2010, 68, 33.)
[16] Sun, B.; Hao, Y.-Z.; Guo, F.; Cao, Y.-H.; Zhang, Y.-H.; Li, Y.-P.; Xu, D.-S. J. Phys. Chem. C 2012, 116, 1395.
[17] Hao, Y.-Z.; Cao, Y.-H.; Sun, B.; Li, Y.-P.; Zhang, Y.-H.; Xu, D.-S. Sol. Energy Mater. Sol. Cells 2012, 101, 107.
[18] Li, Y.-P.; Hao, Y.-Z.; Sun, S.; Sun, B.; Pei, J.; Zhang, Y.-H.; Xu, D.-S.; Liu, L. RSC Adv. 2013, 3, 1541.
[19] Wright, M.; Uddin, A. Sol. Energy Mater. Sol. Cells 2012, 107, 87.
[20] Xu, T.-T.; Venkatesan, S.; Galipeau, D.; Qiao, Q.-Q. Sol. Energy Mater. Sol. Cells 2013, 108, 246.
[21] Gur, I.; Fromer, N. A.; Chen, C.-P.; Kanaras, A. G.; Alivisatos, A. P. Nano Lett. 2007, 7, 409.
[22] Huynh, W. U.; Dittmer, J. J.; Alivisatos, A. P. Science 2002, 295, 2425.
[23] Hao, Y.-Z.; Luo, C.; Sun, B.; Sun, S.; Li, Y.-P.; Shen, S.-G.; Xu, D.-S. Sci. China Chem. 2013, 56, 755.
[24] Sun, B.; Hao, Y.-Z.; Guo, F.; Li, Y.-P.; Luo, C.; Pei, J.; Shen, S.-G. Acta Phys.-Chim. Sin. 2012, 28, 2861. (孙宝, 郝彦忠, 郭奋, 李英品, 罗冲, 裴娟, 申世刚, 物理化学学报, 2012, 28, 2861.)
[25] Hao, Y.-Z.; Cao, Y.-H.; Sun, B.; Zhang, Y.-H.; Li, Y.-P.; Xu, D.-S.; Li, X.-L. Acta Chim. Sinica 2012, 70, 1139. (郝彦忠, 曹寅虎, 孙宝, 张彦辉, 李英品, 徐东升, 李香玲, 化学学报, 2012, 70, 1139.)
[26] Xiang, H.-J.; Wei, S.-H.; Gong, X.-G. J. Phys. Chem. C 2009, 113, 18968.
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