Organic‐free indium‐doped cesium lead iodide perovskite for solar cell application | Zendy

Murugadoss Govindhasamy | Zendy; Thangamuthu Rangasamy | Zendy; Rajesh Kumar Manavalan | Zendy; Ravishankar Ramamoorthy | Zendy

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Organic‐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.

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