Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/86308
Title: Ultrafast Photogenerated Hole Extraction/Transport Behavior in a CH3NH3PbI3/Carbon Nanocomposite and Its Application in a Metal-Electrode-Free Solar Cell
Authors: Ye, Tao
Jiang, Xi
Wan, Dongyang
Wang, Xingzhi
Xing, Jun
Venkatesan, Thirumalai
Xiong, Qihua
Ramakrishna, Seeram
Keywords: Nanostructures
Perovskite phases
Issue Date: 2016
Source: Ye, T., Jiang, X., Wan, D., Wang, X., Xing, J., Venkatesan, T., et al. (2016). Ultrafast Photogenerated Hole Extraction/Transport Behavior in a CH3NH3PbI3/Carbon Nanocomposite and Its Application in a Metal-Electrode-Free Solar Cell. ChemPhysChem, 17(24), 4102-4109.
Series/Report no.: ChemPhysChem
Abstract: Aligned and flexible electrospun carbon nanomaterials are used to synthesize carbon/perovskite nanocomposites. The free-electron diffusion length in the CH3NH3PbI3 phase of the CH3NH3PbI3/carbon nanocomposite is almost twice that of bare CH3NH3PbI3, and nearly 95 % of the photogenerated free holes can be injected from the CH3NH3PbI3 phase into the carbon nanomaterial. The exciton binding energy of the composite is estimated to be 23 meV by utilizing temperature-dependent optical absorption spectroscopy. The calculated free carriers increase with increasing total photoexcitation density, and this broadens the potential of this material for a broad range of optoelectronics applications. A metal-electrode-free perovskite solar cell (power conversion efficiency: 13.0 %) is fabricated with this perovskite/carbon composite, which shows great potential for the fabrication of efficient, large-scale, low-cost, and metal-electrode-free perovskite solar cells.
URI: https://hdl.handle.net/10356/86308
http://hdl.handle.net/10220/43980
ISSN: 1439-4235
DOI: 10.1002/cphc.201600817
Rights: © 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

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