Perovskite Grain Size modulation by annealing in Methyl-Amine Environment

Arun Singh Chouhan, Naga Prathibha Jasti, Shreyash Hadke, Srinivasan Raghavan, Sushobhan Avasthi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Here we present a novel vapor-annealing technique to improve morphology of pure-iodide perovskite (CH3NH3PbI3) thin-films and get pin-hole-free coverage with > 10μm grain size. X-Ray diffraction (XRD) measurement confirms that the annealed films are phase pure perovskite. The larger grain size leads to a significant increase in the effective recombination lifetime of charge carriers, with the best films showing lifetime of >50 μs. Solar cells fabricated with the large grain perovskite thin film shows significant improvement in short-circuit current density (Jsc) and open-circuit voltage (Voc).

Original languageEnglish
Title of host publication2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages986-988
Number of pages3
ISBN (Electronic)9781509056057
DOIs
StatePublished - 2018
Externally publishedYes
Event44th IEEE Photovoltaic Specialist Conference, PVSC 2017 - Washington, United States
Duration: 25 Jun 201730 Jun 2017

Publication series

Name2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017

Conference

Conference44th IEEE Photovoltaic Specialist Conference, PVSC 2017
Country/TerritoryUnited States
CityWashington
Period25/06/1730/06/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

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