NDLI: Effect of $TiO_{2}$-rGO heterojunction on electron collection efficiency and mechanical properties of fiber-shaped dye-sensitized solar cells

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Effect of $TiO_{2}$-rGO heterojunction on electron collection efficiency and mechanical properties of fiber-shaped dye-sensitized solar cells

Content Provider	Scilit
Author	Gu, Xiu Yun Chen, En Zi Ma, Ming Yu Yang, Zhen Yu Bai, Jing Long Chen, Lu Lu Sun, Geng Zhi Zhang, Zhen Xing Pan, Xiao Jun Zhou, Jin Yuan Xie, Er Qing
Copyright Year	2018
Description	Journal: Journal of Physics D: Applied Physics It is demonstrated that the incorporation of graphene materials into oxide-based photoanodes can greatly increase the photoelectrochemical devices' performances. In this work, reduced graphene oxide (rGO) has been incorporated into P25-TiO2 nanoparticle (NP) based photoanodes for fiber-shaped dye-sensitized solar cells (FDSSCs). Results showed that the rGO nanosheets have been uniformly dispersed within P25 nanoparticle layers. And as expected, the incorporation of rGO increased the FDSSCs' short current density from 8.344 to 12.935 mA cm-2, open circuit voltage from 0.775 to 0.798 V, resulting into their power conversion efficiency (PCE) from 3.940% to 5.364%. This large increasement in PCE could be due to two aspects, i.e., the improved electron transport properties via rGO and the enhanced separation of photogenerated hole-electron pairs via rGO-TiO2 heterojunction. Furthermore, the incorporation of rGO can also make the FDSSCs have good mechanical properties, which is very crucial for their future applications in smart wearable electronics. In addition, based on our analysis, a possible rGO/multi-NP coupling enhancement mechanism was proposed.
Related Links	http://iopscience.iop.org/article/10.1088/1361-6463/aaf865/pdf
ISSN	00223727
e-ISSN	13616463
DOI	10.1088/1361-6463/aaf865
Journal	Journal of Physics D: Applied Physics
Issue Number	9
Volume Number	52
Language	English
Publisher	IOP Publishing
Publisher Date	2018-12-13
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics D: Applied Physics Reduced Graphene Oxide Mechanical Properties
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Acoustics and Ultrasonics Condensed Matter Physics Electronic, Optical and Magnetic Materials

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