Electronic Structure of Nonionic Surfactant-Modified PEDOT:PSS and Its Application in Perovskite Solar Cells with Reduced Interface Recombination

Dongguen Shin, Donghee Kang, Jae Bok Lee, Jong Hyun Ahn, Il Wook Cho, Mee Yi Ryu, Sang Wan Cho, Na Eun Jung, Hyunbok Lee, Yeonjin Yi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The interfacial properties of organolead halide perovskite solar cells (PSCs) affect the exciton and charge-transport dynamics significantly. Thus, proper modification of the interfaces between perovskite and charge-transport layers is an efficient method to increase the power conversion efficiency (PCE) of PSCs. In this work, we explore the effect of a nonionic surfactant, that is, Triton X-100 (TX) additive, in the poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) hole-transport layer. The electronic structure of TX-modified PEDOT:PSS is investigated with ultraviolet/X-ray photoelectron spectroscopy and X-ray absorption spectroscopy with various TX concentrations. The surface of the TX-modified PEDOT:PSS layer showed high TX content, and thus the semimetallic properties of PEDOT:PSS were suppressed conspicuously by its insulating nature. With the TX-modified PEDOT:PSS, the PCE of methylammonium lead iodide (MAPbI 3 ) PSCs increased significantly. To elucidate the origin of the improved device performance, the electrical properties and photoluminescence were investigated comprehensively. Consequently, it was found that the TX additive inhibits interface recombination between PEDOT:PSS and MAPbI 3 , which is caused by the suppression of semimetallic properties of the PEDOT:PSS surface. Hence, we fabricated flexible PSCs successfully using a graphene electrode and TX-modified PEDOT:PSS.

Original languageEnglish
Pages (from-to)17028-17034
Number of pages7
JournalACS Applied Materials and Interfaces
Volume11
Issue number18
DOIs
Publication statusPublished - 2019 May 8

Fingerprint

Nonionic surfactants
Octoxynol
Electronic structure
Conversion efficiency
Charge transfer
Ultraviolet photoelectron spectroscopy
X ray absorption spectroscopy
Excitons
Perovskite
Graphene
Photoluminescence
Electric properties
X ray photoelectron spectroscopy
Lead
Electrodes
Graphite
Perovskite solar cells
poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)
Iodides

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Shin, Dongguen ; Kang, Donghee ; Lee, Jae Bok ; Ahn, Jong Hyun ; Cho, Il Wook ; Ryu, Mee Yi ; Cho, Sang Wan ; Jung, Na Eun ; Lee, Hyunbok ; Yi, Yeonjin. / Electronic Structure of Nonionic Surfactant-Modified PEDOT:PSS and Its Application in Perovskite Solar Cells with Reduced Interface Recombination. In: ACS Applied Materials and Interfaces. 2019 ; Vol. 11, No. 18. pp. 17028-17034.
@article{e09f7dc3de07404081a8dc245296c495,
title = "Electronic Structure of Nonionic Surfactant-Modified PEDOT:PSS and Its Application in Perovskite Solar Cells with Reduced Interface Recombination",
abstract = "The interfacial properties of organolead halide perovskite solar cells (PSCs) affect the exciton and charge-transport dynamics significantly. Thus, proper modification of the interfaces between perovskite and charge-transport layers is an efficient method to increase the power conversion efficiency (PCE) of PSCs. In this work, we explore the effect of a nonionic surfactant, that is, Triton X-100 (TX) additive, in the poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) hole-transport layer. The electronic structure of TX-modified PEDOT:PSS is investigated with ultraviolet/X-ray photoelectron spectroscopy and X-ray absorption spectroscopy with various TX concentrations. The surface of the TX-modified PEDOT:PSS layer showed high TX content, and thus the semimetallic properties of PEDOT:PSS were suppressed conspicuously by its insulating nature. With the TX-modified PEDOT:PSS, the PCE of methylammonium lead iodide (MAPbI 3 ) PSCs increased significantly. To elucidate the origin of the improved device performance, the electrical properties and photoluminescence were investigated comprehensively. Consequently, it was found that the TX additive inhibits interface recombination between PEDOT:PSS and MAPbI 3 , which is caused by the suppression of semimetallic properties of the PEDOT:PSS surface. Hence, we fabricated flexible PSCs successfully using a graphene electrode and TX-modified PEDOT:PSS.",
author = "Dongguen Shin and Donghee Kang and Lee, {Jae Bok} and Ahn, {Jong Hyun} and Cho, {Il Wook} and Ryu, {Mee Yi} and Cho, {Sang Wan} and Jung, {Na Eun} and Hyunbok Lee and Yeonjin Yi",
year = "2019",
month = "5",
day = "8",
doi = "10.1021/acsami.9b01545",
language = "English",
volume = "11",
pages = "17028--17034",
journal = "ACS applied materials & interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "18",

}

Electronic Structure of Nonionic Surfactant-Modified PEDOT:PSS and Its Application in Perovskite Solar Cells with Reduced Interface Recombination. / Shin, Dongguen; Kang, Donghee; Lee, Jae Bok; Ahn, Jong Hyun; Cho, Il Wook; Ryu, Mee Yi; Cho, Sang Wan; Jung, Na Eun; Lee, Hyunbok; Yi, Yeonjin.

In: ACS Applied Materials and Interfaces, Vol. 11, No. 18, 08.05.2019, p. 17028-17034.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Electronic Structure of Nonionic Surfactant-Modified PEDOT:PSS and Its Application in Perovskite Solar Cells with Reduced Interface Recombination

AU - Shin, Dongguen

AU - Kang, Donghee

AU - Lee, Jae Bok

AU - Ahn, Jong Hyun

AU - Cho, Il Wook

AU - Ryu, Mee Yi

AU - Cho, Sang Wan

AU - Jung, Na Eun

AU - Lee, Hyunbok

AU - Yi, Yeonjin

PY - 2019/5/8

Y1 - 2019/5/8

N2 - The interfacial properties of organolead halide perovskite solar cells (PSCs) affect the exciton and charge-transport dynamics significantly. Thus, proper modification of the interfaces between perovskite and charge-transport layers is an efficient method to increase the power conversion efficiency (PCE) of PSCs. In this work, we explore the effect of a nonionic surfactant, that is, Triton X-100 (TX) additive, in the poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) hole-transport layer. The electronic structure of TX-modified PEDOT:PSS is investigated with ultraviolet/X-ray photoelectron spectroscopy and X-ray absorption spectroscopy with various TX concentrations. The surface of the TX-modified PEDOT:PSS layer showed high TX content, and thus the semimetallic properties of PEDOT:PSS were suppressed conspicuously by its insulating nature. With the TX-modified PEDOT:PSS, the PCE of methylammonium lead iodide (MAPbI 3 ) PSCs increased significantly. To elucidate the origin of the improved device performance, the electrical properties and photoluminescence were investigated comprehensively. Consequently, it was found that the TX additive inhibits interface recombination between PEDOT:PSS and MAPbI 3 , which is caused by the suppression of semimetallic properties of the PEDOT:PSS surface. Hence, we fabricated flexible PSCs successfully using a graphene electrode and TX-modified PEDOT:PSS.

AB - The interfacial properties of organolead halide perovskite solar cells (PSCs) affect the exciton and charge-transport dynamics significantly. Thus, proper modification of the interfaces between perovskite and charge-transport layers is an efficient method to increase the power conversion efficiency (PCE) of PSCs. In this work, we explore the effect of a nonionic surfactant, that is, Triton X-100 (TX) additive, in the poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) hole-transport layer. The electronic structure of TX-modified PEDOT:PSS is investigated with ultraviolet/X-ray photoelectron spectroscopy and X-ray absorption spectroscopy with various TX concentrations. The surface of the TX-modified PEDOT:PSS layer showed high TX content, and thus the semimetallic properties of PEDOT:PSS were suppressed conspicuously by its insulating nature. With the TX-modified PEDOT:PSS, the PCE of methylammonium lead iodide (MAPbI 3 ) PSCs increased significantly. To elucidate the origin of the improved device performance, the electrical properties and photoluminescence were investigated comprehensively. Consequently, it was found that the TX additive inhibits interface recombination between PEDOT:PSS and MAPbI 3 , which is caused by the suppression of semimetallic properties of the PEDOT:PSS surface. Hence, we fabricated flexible PSCs successfully using a graphene electrode and TX-modified PEDOT:PSS.

UR - http://www.scopus.com/inward/record.url?scp=85065491874&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85065491874&partnerID=8YFLogxK

U2 - 10.1021/acsami.9b01545

DO - 10.1021/acsami.9b01545

M3 - Article

C2 - 30990013

AN - SCOPUS:85065491874

VL - 11

SP - 17028

EP - 17034

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

SN - 1944-8244

IS - 18

ER -