Open AccessOrganic‐free indium‐doped cesium lead iodide perovskite for solar cell application
Author(s) -
Murugadoss Govindhasamy,
Thangamuthu Rangasamy,
Rajesh Kumar Manavalan,
Ravishankar Ramamoorthy
Publication year - 2019
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2019.0321
Subject(s) - perovskite (structure) , materials science , iodide , indium , doping , fabrication , energy conversion efficiency , photovoltaic system , caesium , absorption (acoustics) , phase (matter) , optoelectronics , inorganic chemistry , chemical engineering , chemistry , organic chemistry , composite material , ecology , biology , medicine , alternative medicine , pathology , engineering
Herein, organic‐free all‐solid‐state based perovskite solar cells (PSCs) are successfully fabricated by one‐step method. The absorption position of the non‐perovskite cesium lead iodide (δ‐CsPbI 3 ) was significantly shifted towards longer wavelength side by substituting indium (In) ion with different stoichiometric ratio. The authors demonstrated a facile route to achieve high efficiency by the fabrication of room temperature stable mixed‐phase CsPbI 3 perovskite. Photovoltaic efficiency of doped perovskite is four times increased compared to pure yellow phase CsPbI 3 . To the best of the authors’ knowledge, this is the first demonstration of In‐doped‐CsPbI 3 based PSCs, which was fabricated under completely open‐air atmosphere.