Large grained and high charge carrier lifetime CH3NH3PbI3 thin-films: implications for perovskite solar cells

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

doi:10.1016/j.cap.2017.07.005

Large grained and high charge carrier lifetime CH₃NH₃PbI₃ thin-films: implications for perovskite solar cells

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

Indian Institute of Science Bangalore

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

Spin coated perovskite thin films are known to have an issue of pinholes & poor morphology control which lead to poor device-to-device repeatability, that is an impediment to scale-up. In this work, Methylamine vapor annealing process is demonstrated which consistently leads to high-quality perovskite thin-films with an average grain-size of 10–15 μm. The improvement in film morphology enables improvement in effective carrier recombination lifetime, from 21 μs in as-deposited films to 54 μs in vapor-annealed films. The annealed films with large-grains are also more stable in ambient conditions. Devices made on annealed perovskite films are very consistent, with a standard deviation of only 0.7%. Methylamine vapor annealing process is a promising method of depositing large-grain CH₃NH₃PbI₃ films with high recombination lifetime and the devices with improved performance.

Original language	English
Pages (from-to)	1335-1340
Number of pages	6
Journal	Current Applied Physics
Volume	17
Issue number	10
DOIs	https://doi.org/10.1016/j.cap.2017.07.005
State	Published - Oct 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Funding

This work is supported in part under the U.S.-India Partnership to Advance Clean Energy-Research (PACE-R) for the Solar Energy Research Institute for India and the United States (SERIIUS), funded jointly by the U.S. Department of Energy (Office of Science, Office of Basic Energy Sciences, and Energy Efficiency and Renewable Energy, Solar Energy Technology Program, under Subcontract DE-AC36-08GO28308 to the National Renewable Energy Laboratory, Golden, Colorado) and the Government of India, through the Department of Science and Technology under Subcontract IUSSTF/JCERDC-SERIIUS/2012 dated 22nd Nov. 2012. The work is also supported by Department of Science and Technology (DST), Government of India, under project reference no: SB/S3/EECE/0163/2014. Authors are also grateful to Praveen Ramamurthy, Rajeev Ranjan and Manish Jain, Indian Institute of Science (IISc) for helpful discussions.

Funders	Funder number
Office of Basic Energy Sciences, and Energy Efficiency and Renewable Energy
Solar Energy Research Institute for India
U.S.-India Partnership to Advance Clean Energy-Research
U.S. Department of Energy
Solar Energy Technologies Program	DE-AC36-08GO28308
Office of Science
National Renewable Energy Laboratory
Indian Institute of Science
Department of Science and Technology, Ministry of Science and Technology, India	SB/S3/EECE/0163/2014

Keywords

Large grains
Methylamine vapor annealing
Microwave detected carrier lifetime
Morphology
Perovskite
Solar cell

Access to Document

10.1016/j.cap.2017.07.005

Cite this

@article{79afd8dfe55a4edb90c108f339727264,

title = "Large grained and high charge carrier lifetime CH3NH3PbI3 thin-films: implications for perovskite solar cells",

abstract = "Spin coated perovskite thin films are known to have an issue of pinholes \& poor morphology control which lead to poor device-to-device repeatability, that is an impediment to scale-up. In this work, Methylamine vapor annealing process is demonstrated which consistently leads to high-quality perovskite thin-films with an average grain-size of 10–15 μm. The improvement in film morphology enables improvement in effective carrier recombination lifetime, from 21 μs in as-deposited films to 54 μs in vapor-annealed films. The annealed films with large-grains are also more stable in ambient conditions. Devices made on annealed perovskite films are very consistent, with a standard deviation of only 0.7\%. Methylamine vapor annealing process is a promising method of depositing large-grain CH3NH3PbI3 films with high recombination lifetime and the devices with improved performance.",

keywords = "Large grains, Methylamine vapor annealing, Microwave detected carrier lifetime, Morphology, Perovskite, Solar cell",

author = "Chouhan, \{Arun Singh\} and Jasti, \{Naga Prathibha\} and Shreyash Hadke and Srinivasan Raghavan and Sushobhan Avasthi",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = oct,

doi = "10.1016/j.cap.2017.07.005",

language = "אנגלית",

volume = "17",

pages = "1335--1340",

journal = "Current Applied Physics",

issn = "1567-1739",

publisher = "Elsevier B.V.",

number = "10",

}

TY - JOUR

T1 - Large grained and high charge carrier lifetime CH3NH3PbI3 thin-films

T2 - implications for perovskite solar cells

AU - Chouhan, Arun Singh

AU - Jasti, Naga Prathibha

AU - Hadke, Shreyash

AU - Raghavan, Srinivasan

AU - Avasthi, Sushobhan

PY - 2017/10

Y1 - 2017/10

N2 - Spin coated perovskite thin films are known to have an issue of pinholes & poor morphology control which lead to poor device-to-device repeatability, that is an impediment to scale-up. In this work, Methylamine vapor annealing process is demonstrated which consistently leads to high-quality perovskite thin-films with an average grain-size of 10–15 μm. The improvement in film morphology enables improvement in effective carrier recombination lifetime, from 21 μs in as-deposited films to 54 μs in vapor-annealed films. The annealed films with large-grains are also more stable in ambient conditions. Devices made on annealed perovskite films are very consistent, with a standard deviation of only 0.7%. Methylamine vapor annealing process is a promising method of depositing large-grain CH3NH3PbI3 films with high recombination lifetime and the devices with improved performance.

AB - Spin coated perovskite thin films are known to have an issue of pinholes & poor morphology control which lead to poor device-to-device repeatability, that is an impediment to scale-up. In this work, Methylamine vapor annealing process is demonstrated which consistently leads to high-quality perovskite thin-films with an average grain-size of 10–15 μm. The improvement in film morphology enables improvement in effective carrier recombination lifetime, from 21 μs in as-deposited films to 54 μs in vapor-annealed films. The annealed films with large-grains are also more stable in ambient conditions. Devices made on annealed perovskite films are very consistent, with a standard deviation of only 0.7%. Methylamine vapor annealing process is a promising method of depositing large-grain CH3NH3PbI3 films with high recombination lifetime and the devices with improved performance.

KW - Large grains

KW - Methylamine vapor annealing

KW - Microwave detected carrier lifetime

KW - Morphology

KW - Perovskite

KW - Solar cell

UR - https://www.scopus.com/pages/publications/85023175950

U2 - 10.1016/j.cap.2017.07.005

DO - 10.1016/j.cap.2017.07.005

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:85023175950

SN - 1567-1739

VL - 17

SP - 1335

EP - 1340

JO - Current Applied Physics

JF - Current Applied Physics

IS - 10

ER -