High-performance photovoltaic perovskite layers fabricated through intramolecular exchange

Woon Seok Yang, Jun Hong Noh, Nam Joong Jeon, Young Chan Kim, Seungchan Ryu, Jangwon Seo, Sang Il Seok

Research output: Contribution to journalArticle

3658 Citations (Scopus)

Abstract

The band gap of formamidinium lead iodide (FAPbI3) perovskites allows broader absorption of the solar spectrum relative to conventional methylammonium lead iodide (MAPbI3). Because the optoelectronic properties of perovskite films are closely related to film quality, deposition of dense and uniform films is crucial for fabricating high-performance perovskite solar cells (PSCs). We report an approach for depositing high-quality FAPbI3 films, involving FAPbI3 crystallization by the direct intramolecular exchange of dimethylsulfoxide (DMSO) molecules intercalated in PbI2 with formamidinium iodide. This process produces FAPbI3 films with (111)-preferred crystallographic orientation, large-grained dense microstructures, and flat surfaces without residual PbI2. Using films prepared by this technique, we fabricated FAPbI3-based PSCs with maximum power conversion efficiency greater than 20%.

Original languageEnglish
Pages (from-to)1234-1237
Number of pages4
JournalScience
Volume348
Issue number6240
DOIs
Publication statusPublished - 2015 Jun 12
Externally publishedYes

Fingerprint

Iodides
Crystallization
Dimethyl Sulfoxide
perovskite
Lead
formamidine

ASJC Scopus subject areas

  • General

Cite this

Yang, W. S., Noh, J. H., Jeon, N. J., Kim, Y. C., Ryu, S., Seo, J., & Seok, S. I. (2015). High-performance photovoltaic perovskite layers fabricated through intramolecular exchange. Science, 348(6240), 1234-1237. https://doi.org/10.1126/science.aaa9272

High-performance photovoltaic perovskite layers fabricated through intramolecular exchange. / Yang, Woon Seok; Noh, Jun Hong; Jeon, Nam Joong; Kim, Young Chan; Ryu, Seungchan; Seo, Jangwon; Seok, Sang Il.

In: Science, Vol. 348, No. 6240, 12.06.2015, p. 1234-1237.

Research output: Contribution to journalArticle

Yang, WS, Noh, JH, Jeon, NJ, Kim, YC, Ryu, S, Seo, J & Seok, SI 2015, 'High-performance photovoltaic perovskite layers fabricated through intramolecular exchange', Science, vol. 348, no. 6240, pp. 1234-1237. https://doi.org/10.1126/science.aaa9272
Yang, Woon Seok ; Noh, Jun Hong ; Jeon, Nam Joong ; Kim, Young Chan ; Ryu, Seungchan ; Seo, Jangwon ; Seok, Sang Il. / High-performance photovoltaic perovskite layers fabricated through intramolecular exchange. In: Science. 2015 ; Vol. 348, No. 6240. pp. 1234-1237.
@article{5c3daa1a494746dd8f29e305564d6375,
title = "High-performance photovoltaic perovskite layers fabricated through intramolecular exchange",
abstract = "The band gap of formamidinium lead iodide (FAPbI3) perovskites allows broader absorption of the solar spectrum relative to conventional methylammonium lead iodide (MAPbI3). Because the optoelectronic properties of perovskite films are closely related to film quality, deposition of dense and uniform films is crucial for fabricating high-performance perovskite solar cells (PSCs). We report an approach for depositing high-quality FAPbI3 films, involving FAPbI3 crystallization by the direct intramolecular exchange of dimethylsulfoxide (DMSO) molecules intercalated in PbI2 with formamidinium iodide. This process produces FAPbI3 films with (111)-preferred crystallographic orientation, large-grained dense microstructures, and flat surfaces without residual PbI2. Using films prepared by this technique, we fabricated FAPbI3-based PSCs with maximum power conversion efficiency greater than 20{\%}.",
author = "Yang, {Woon Seok} and Noh, {Jun Hong} and Jeon, {Nam Joong} and Kim, {Young Chan} and Seungchan Ryu and Jangwon Seo and Seok, {Sang Il}",
year = "2015",
month = "6",
day = "12",
doi = "10.1126/science.aaa9272",
language = "English",
volume = "348",
pages = "1234--1237",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "6240",

}

TY - JOUR

T1 - High-performance photovoltaic perovskite layers fabricated through intramolecular exchange

AU - Yang, Woon Seok

AU - Noh, Jun Hong

AU - Jeon, Nam Joong

AU - Kim, Young Chan

AU - Ryu, Seungchan

AU - Seo, Jangwon

AU - Seok, Sang Il

PY - 2015/6/12

Y1 - 2015/6/12

N2 - The band gap of formamidinium lead iodide (FAPbI3) perovskites allows broader absorption of the solar spectrum relative to conventional methylammonium lead iodide (MAPbI3). Because the optoelectronic properties of perovskite films are closely related to film quality, deposition of dense and uniform films is crucial for fabricating high-performance perovskite solar cells (PSCs). We report an approach for depositing high-quality FAPbI3 films, involving FAPbI3 crystallization by the direct intramolecular exchange of dimethylsulfoxide (DMSO) molecules intercalated in PbI2 with formamidinium iodide. This process produces FAPbI3 films with (111)-preferred crystallographic orientation, large-grained dense microstructures, and flat surfaces without residual PbI2. Using films prepared by this technique, we fabricated FAPbI3-based PSCs with maximum power conversion efficiency greater than 20%.

AB - The band gap of formamidinium lead iodide (FAPbI3) perovskites allows broader absorption of the solar spectrum relative to conventional methylammonium lead iodide (MAPbI3). Because the optoelectronic properties of perovskite films are closely related to film quality, deposition of dense and uniform films is crucial for fabricating high-performance perovskite solar cells (PSCs). We report an approach for depositing high-quality FAPbI3 films, involving FAPbI3 crystallization by the direct intramolecular exchange of dimethylsulfoxide (DMSO) molecules intercalated in PbI2 with formamidinium iodide. This process produces FAPbI3 films with (111)-preferred crystallographic orientation, large-grained dense microstructures, and flat surfaces without residual PbI2. Using films prepared by this technique, we fabricated FAPbI3-based PSCs with maximum power conversion efficiency greater than 20%.

UR - http://www.scopus.com/inward/record.url?scp=84931272007&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84931272007&partnerID=8YFLogxK

U2 - 10.1126/science.aaa9272

DO - 10.1126/science.aaa9272

M3 - Article

AN - SCOPUS:84931272007

VL - 348

SP - 1234

EP - 1237

JO - Science

JF - Science

SN - 0036-8075

IS - 6240

ER -