Publication Type : Journal Article
Publisher : Nanoscale
Source : Nanoscale Volume 8 Issue 12 Pages 6352-6360, 2016
Url : https://pubs.rsc.org/en/content/articlelanding/2016/nr/c5nr06177f/unauth
Campus : Coimbatore
School : School of Physical Sciences
Center : Amrita Analytical Research Center
Year : 2016
Abstract : A high open circuit voltage (VOC) close to 1.4 V under AM 1.5, 100 mW cm−2 conditions is achieved when carbon nanotubes (CNTs) are used as a hole conductor in methyl ammonium lead bromide (MAPbBr3) perovskite solar cells. Time-resolved photoluminescence and impedance spectroscopy investigations suggest that the observed high VOC is a result of the better charge extraction and lower recombination of the CNT hole conductor. Tandem solar cells with all perovskite absorbers are demonstrated with a MAPbBr3/CNT top cell and a MAPbI3 bottom cell, achieving a VOC of 2.24 V in series connection. The semitransparent and high voltage MAPbBr3/CNT solar cells show great potential for applications in solar cell windows, tandem solar cells and solar driven water splitting.
Cite this Research Publication : Zhen Li, Pablo P Boix, Guichuan Xing, Kunwu Fu, Sneha A Kulkarni, Sudip K Batabyal, Wenjing Xu, Anyuan Cao, Tze Chien Sum, Nripan Mathews, Lydia Helena Wong, "Carbon nanotubes as an efficient hole collector for high voltage methylammonium lead bromide perovskite solar cells", Nanoscale Volume 8 Issue 12 Pages 6352-6360, 2016