NDLI: Quantum dots co-sensitized solar cells: a new assembly process of CdS/CdSe linked to mesoscopic TiO$_{2}$-nano-SiO$

Content Provider	Springer Nature Link
Author	Wang, Renbao Wan, Lei Niu, Haihong Ma, Qiong Miao, Shiding Xu, Jinzhang
Copyright Year	2013
Abstract	A green and simple method was found to prepare CdS/CdSe co-sensitized photoelectrodes for the quantum dots sensitized solar cells application. All the assembly processes of CdS and CdSe quantum dots (QDs) were carried out in aqueous solution. CdS and CdSe QDs were sequentially assembled onto TiO$_{2}$-nano-SiO$_{2}$ hybrid film by two steps. Firstly, CdS QDs were deposited in situ over TiO$_{2}$-nano-SiO$_{2}$ hybrid film by the successive ionic layer adsorption and reaction (SILAR) process in water. Secondly, using 3-mercaptopropionic acid (3-MPA) as a linker molecule, the pre-prepared colloidal CdSe QDs (~3.0 nm) dissolved in water was linked onto the TiO$_{2}$-nano-SiO$_{2}$ hybrid film by the self-assembled monolayer technique with the mode of dropwise. The mode is simple and advantageous to saving materials and time. The results show that the photovoltaic performance of the cells is enhanced with the increase of SILAR cycles for TiO$_{2}$-nano-SiO$_{2}$/CdS photoelectrode. The power conversion efficiency of 2.15 % was achieved using the co-sensitization photoelectrode prepared by using 6 SILAR cycles of CdS plus CdSe (TiO$_{2}$-nano-SiO$_{2}$/CdS(6)/CdSe) under the illumination of one sun (AM1.5, 100 mW/cm$^{2}$).
Starting Page	458
Ending Page	463
Page Count	6
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	67
Issue Number	3
e-ISSN	15734846
Language	English
Publisher	Springer US
Publisher Date	2013-07-10
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Quantum dots Successive ionic layer adsorption and reaction Self-assembled Solar cells Ceramics, Glass, Composites, Natural Methods Inorganic Chemistry Optical and Electronic Materials Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Materials Chemistry Biomaterials Condensed Matter Physics Electronic, Optical and Magnetic Materials

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