Issue 15, 2021

Substance and shadow of formamidinium lead triiodide based solar cells

Abstract

The current decade has witnessed a surge of progress in the investigation of methyl ammonium lead iodide (MAPbI3) perovskites for solar cell fabrication due to their intriguing electro-optical properties, despite the intrinsic degradation of the material that has restricted its commercialisation. As a promising alternative, solar cells based on its formamidinium analogue, FAPbI3, are currently being actively pursued for having demonstrated a certified efficiency of 24.4%, while the room-temperature conversion to a non-perovskite δ-phase impedes its further commercialisation, and strategies have been adopted to overcome this phase instability. An in-depth and real-time understanding of microstructural relationships with optoelectronic properties and their underlying mechanisms using operando in situ spectroscopic techniques is paramount. Thus, the design and development of a new process, data driven methodology, characterization and evaluation protocols for perovskite absorber layers and the fabricated devices is a judicious research direction. Here, in this perspective, we shed light on the compositional, surface engineering and crystallization kinetics manipulations for FAPbI3, followed by a proposition for unified testing protocols, for scalling of devices from the lab to the market.

Graphical abstract: Substance and shadow of formamidinium lead triiodide based solar cells

Article information

Article type
Perspective
Submitted
05 فرؤری 2021
Accepted
16 مارٕچ 2021
First published
16 مارٕچ 2021

Phys. Chem. Chem. Phys., 2021,23, 9049-9060

Substance and shadow of formamidinium lead triiodide based solar cells

M. P. U. Haris, S. Kazim, M. Pegu, M. Deepa and S. Ahmad, Phys. Chem. Chem. Phys., 2021, 23, 9049 DOI: 10.1039/D1CP00552A

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