Interface modification using a post-treatment-free heteropolyacid for effective charge selective bilayer formation in perovskite solar cells

Gopalan Saianand; Anantha Iyengar Gopalan; Vellaisamy A.L. Roy; Gregory J. Wilson; Jaroon Jakmunee; Prashant Sonar; Liangyou Lin; Sae Wan Kim; Shin Won Kang

doi:10.1016/j.matlet.2020.128393

Interface modification using a post-treatment-free heteropolyacid for effective charge selective bilayer formation in perovskite solar cells

Gopalan Saianand
, Anantha Iyengar Gopalan
, Vellaisamy A.L. Roy
, Gregory J. Wilson
, Jaroon Jakmunee
, Prashant Sonar
, Liangyou Lin
, Sae Wan Kim
, Shin Won Kang

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

2 Citations (Scopus)

Abstract

We rationally utilized a solution-processed post-heat treatment-free heteropolyacid compound, phosphomolybdic acid hydrate (PMAH) as a charge selective interface modifier for poly(3,4-ethylene dioxythiophene): polystyrene sulfonate (PEDOT:PSS) in inverted perovskite solar cells (PSCs). The fabricated PSCs with PMAH/PEDOT:PSS bilayer exhibited significant improvement in the power conversion efficiency (PCE) (∼12%) with superior long-term air-stability as compared to PEDOT:PSS based PSCs (9.8%). The measured photovoltaic performance demonstrates that the inclusion of PMAH as an interface to ITO and PEDOT:PSS is an efficient way of realizing stable and efficient PSCs.

Original language	English
Article number	128393
Journal	Materials Letters
Volume	277
DOIs	https://doi.org/10.1016/j.matlet.2020.128393
Publication status	Published - 15 Oct 2020
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Charge selective modifier
Heteropolyacid
PEDOT:PSS
Perovskite solar cells
Polyoxometalates

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10.1016/j.matlet.2020.128393

Cite this

@article{7c05e74fb72c40358623128b2c9a27d3,

title = "Interface modification using a post-treatment-free heteropolyacid for effective charge selective bilayer formation in perovskite solar cells",

abstract = "We rationally utilized a solution-processed post-heat treatment-free heteropolyacid compound, phosphomolybdic acid hydrate (PMAH) as a charge selective interface modifier for poly(3,4-ethylene dioxythiophene): polystyrene sulfonate (PEDOT:PSS) in inverted perovskite solar cells (PSCs). The fabricated PSCs with PMAH/PEDOT:PSS bilayer exhibited significant improvement in the power conversion efficiency (PCE) (∼12\%) with superior long-term air-stability as compared to PEDOT:PSS based PSCs (9.8\%). The measured photovoltaic performance demonstrates that the inclusion of PMAH as an interface to ITO and PEDOT:PSS is an efficient way of realizing stable and efficient PSCs.",

keywords = "Charge selective modifier, Heteropolyacid, PEDOT:PSS, Perovskite solar cells, Polyoxometalates",

author = "Gopalan Saianand and Gopalan, \{Anantha Iyengar\} and Roy, \{Vellaisamy A.L.\} and Wilson, \{Gregory J.\} and Jaroon Jakmunee and Prashant Sonar and Liangyou Lin and Kim, \{Sae Wan\} and Kang, \{Shin Won\}",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2020",

month = oct,

day = "15",

doi = "10.1016/j.matlet.2020.128393",

language = "English",

volume = "277",

}

TY - JOUR

T1 - Interface modification using a post-treatment-free heteropolyacid for effective charge selective bilayer formation in perovskite solar cells

AU - Saianand, Gopalan

AU - Gopalan, Anantha Iyengar

AU - Roy, Vellaisamy A.L.

AU - Wilson, Gregory J.

AU - Jakmunee, Jaroon

AU - Sonar, Prashant

AU - Lin, Liangyou

AU - Kim, Sae Wan

AU - Kang, Shin Won

PY - 2020/10/15

Y1 - 2020/10/15

N2 - We rationally utilized a solution-processed post-heat treatment-free heteropolyacid compound, phosphomolybdic acid hydrate (PMAH) as a charge selective interface modifier for poly(3,4-ethylene dioxythiophene): polystyrene sulfonate (PEDOT:PSS) in inverted perovskite solar cells (PSCs). The fabricated PSCs with PMAH/PEDOT:PSS bilayer exhibited significant improvement in the power conversion efficiency (PCE) (∼12%) with superior long-term air-stability as compared to PEDOT:PSS based PSCs (9.8%). The measured photovoltaic performance demonstrates that the inclusion of PMAH as an interface to ITO and PEDOT:PSS is an efficient way of realizing stable and efficient PSCs.

AB - We rationally utilized a solution-processed post-heat treatment-free heteropolyacid compound, phosphomolybdic acid hydrate (PMAH) as a charge selective interface modifier for poly(3,4-ethylene dioxythiophene): polystyrene sulfonate (PEDOT:PSS) in inverted perovskite solar cells (PSCs). The fabricated PSCs with PMAH/PEDOT:PSS bilayer exhibited significant improvement in the power conversion efficiency (PCE) (∼12%) with superior long-term air-stability as compared to PEDOT:PSS based PSCs (9.8%). The measured photovoltaic performance demonstrates that the inclusion of PMAH as an interface to ITO and PEDOT:PSS is an efficient way of realizing stable and efficient PSCs.

KW - Charge selective modifier

KW - Heteropolyacid

KW - PEDOT:PSS

KW - Perovskite solar cells

KW - Polyoxometalates

UR - https://www.scopus.com/pages/publications/85089263020

U2 - 10.1016/j.matlet.2020.128393

DO - 10.1016/j.matlet.2020.128393

M3 - Article

AN - SCOPUS:85089263020

SN - 0167-577X

VL - 277

JO - Materials Letters

JF - Materials Letters

M1 - 128393

ER -

Interface modification using a post-treatment-free heteropolyacid for effective charge selective bilayer formation in perovskite solar cells

Abstract

UN SDGs

Keywords

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