Paper Title:
Self-Assembly of PPV/CdTe Nanocrystal Complex for Photovoltaic Device
  Abstract

This work focuses on studying a novel polymer/nanocrystal multilayer for the fabrication of donor and accepter typed photovoltaic device. Highly luminescent anionic CdTe nanocrystals were prepared by aqueous synthesis method using 3-mercaptopropionic acid as stabilizer. The resultant CdTe served as electron acceptor and poly(p-phenylene vinylene) (PPV) was used as electron donor. Through the electrostatic interactions between cationic PPV precursor poly(p-xylene tetrahydrothiophenium chloride) and anionic poly(sodium4-styrenesulfonate) (PSS), PPV/PSS complex was fabricated on the surface of pretreated quartz substrate by layer-by-layer electrostatic self-assembly method. UV-Vis spectrum shows that PSS in the PPV/PSS complex make PPV precursors thermally convert into PPV at a lower temperature and less time. PPV/ PSS/PPV/CdTe multilayer were fabricated on the surface of quartz substrate by electrostatic self-assembly method. The surface of the polymer/CdTe complex is flat, which was characterized by atomic force microscopy (AFM). UV-Vis spectrum of the polymer/CdTe complex shows that the absorbance increases with the increase of the number of deposition cycles. In the same way, PPV/PSS/PPV/CdTe multilayer were fabricated on the surface of ITO substrate disposed by the poly(3,4- ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS). The resultant polymer/ CdTe complex is measured under AM1.5G simulated solar illumination with 100mW•cm-2 in air. The open circuit current density (VOC) and short circuit current density (JSC) of the polymer/CdTe complex are 0.60 V and 0.305 mA•cm-2 which are better than PPV or CdTe nanocrystal individual. This could be ascribed to interfacial hole-electron converter between the conjugated polymer layer and CdTe nanocrystal layer. Besides, the photovoltaic properties of PPV/CdTe complex can be improved by controlling the layers of PPV/ CdTe nanocrystals complex on the ITO substrate.

  Info
Periodical
Advanced Materials Research (Volumes 79-82)
Edited by
Yansheng Yin and Xin Wang
Pages
485-488
DOI
10.4028/www.scientific.net/AMR.79-82.485
Citation
Y. C. Tian, L. H. Gan, M. X. Liu, Z. J. Xu, Z. X. Hao, D. Z. Zhu, L. W. Chen, "Self-Assembly of PPV/CdTe Nanocrystal Complex for Photovoltaic Device", Advanced Materials Research, Vols. 79-82, pp. 485-488, 2009
Online since
August 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hee Joo Kim, Kyung Lee, Jong Cheol Lee, Sang Jin Moon
Abstract:In order to more improve the performance of the existing P3HT:C60 polymer photovoltaic cells, we adopted soluble C70 insteade of C60. The...
935
Authors: Li Guan, Juan Wang, Ming La, Yi Ping Zhong, Ping Liu, Wen Ji Deng
Abstract:For the purpose of developing novel photovoltaic materials and organic photovoltaic devices with good performance characteristics,...
832
Authors: Fu Fang Zhou, Qing Lan Ma, Yuan Ming Huang, Zhuo Ran She, Chun Xu Pan
Abstract:By applying phosphoric acid in dispersion of fullerene in the fabrication of polypyrrolefullerene photovoltaic cells we present laminated...
861
Authors: Xiao Zhou Zhang, Xi Gao Jian, Li Wu Zu
Chapter 3: Materials Engineering
Abstract:Bulk heterojunction photovolataic devices based on blends of conjugated polymer poly (2- methoxyl-5- dodecoxyl p-phenyl vinylene) (PMODOPV)...
231
Authors: Li Guo, Yong Guo Zhang, Jian Qiang Hu
Chapter 4: Material Engineering and its Application Technology
Abstract:The covalent incorporation of C60 into one block of a poly(1,4-(2,5-dioctyloxy)phenylene vinylene)-based diblock copolymer resulted in a...
376