Use of the Phen-NaDPO:Sn(SCN)2 Blend as Electron Transport Layer Results to Consistent Efficiency Improvements in Organic and Hybrid Perovskite Solar Cells

Akmaral Seitkhan; Marios Neophytou; Mindaugas Kirkus; Edy Abou-Hamad; Mohamed Nejib Hedhili; Emre Yengel; Yuliar Firdaus; Hendrik Faber; Yuanbao Lin; Leonidas Tsetseris; Iain McCulloch; Thomas D. Anthopoulos

doi:10.1002/adfm.201905810

Use of the Phen-NaDPO:Sn(SCN)₂ Blend as Electron Transport Layer Results to Consistent Efficiency Improvements in Organic and Hybrid Perovskite Solar Cells

Akmaral Seitkhan
, Marios Neophytou
, Mindaugas Kirkus
, Edy Abou-Hamad
, Mohamed Nejib Hedhili
, Emre Yengel
, Yuliar Firdaus
, Hendrik Faber
, Yuanbao Lin
, Leonidas Tsetseris
, Iain McCulloch
, Thomas D. Anthopoulos

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

48 Scopus citations

Abstract

A simple approach that enables a consistent enhancement of the electron extracting properties of the widely used small-molecule Phen-NaDPO and its application in organic solar cells (OSCs) is reported. It is shown that addition of minute amounts of the inorganic molecule Sn(SCN)₂ into Phen-NaDPO improves both the electron transport and its film-forming properties. Use of Phen-NaDPO:Sn(SCN)₂ blend as the electron transport layer (ETL) in binary PM6:IT-4F OSCs leads to a remarkable increase in the cells' power conversion efficiency (PCE) from 12.6% (Phen-NaDPO) to 13.5% (Phen-NaDPO:Sn(SCN)₂). Combining the hybrid ETL with the best-in-class organic ternary PM6:Y6:PC₇₀BM systems results to a similarly remarkable PCE increase from 14.2% (Phen-NaDPO) to 15.6% (Phen-NaDPO:Sn(SCN)₂). The consistent PCE enhancement is attributed to reduced trap-assisted carrier recombination at the bulk-heterojunction/ETL interface due to the presence of new energy states formed upon chemical interaction of Phen-NaDPO with Sn(SCN)₂. The versatility of this hybrid ETL is further demonstrated with its application in perovskite solar cells for which an increase in the PCE from 16.6% to 18.2% is also demonstrated.

Original language	English (US)
Article number	1905810
Journal	Advanced Functional Materials
Volume	29
Issue number	49
DOIs	https://doi.org/10.1002/adfm.201905810
State	Published - Dec 1 2019
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics

Keywords

electron transporting layers
nonfullerene acceptors
organic photovoltaics
Phen-NaDPO
tin (II) thiocyanate

Access to Document

10.1002/adfm.201905810

Cite this

Seitkhan, A., Neophytou, M., Kirkus, M., Abou-Hamad, E., Hedhili, M. N., Yengel, E., Firdaus, Y., Faber, H., Lin, Y., Tsetseris, L., McCulloch, I., & Anthopoulos, T. D. (2019). Use of the Phen-NaDPO:Sn(SCN)₂ Blend as Electron Transport Layer Results to Consistent Efficiency Improvements in Organic and Hybrid Perovskite Solar Cells. Advanced Functional Materials, 29(49), Article 1905810. https://doi.org/10.1002/adfm.201905810

@article{62184e45623a44b7a2b245b82510130c,

title = "Use of the Phen-NaDPO:Sn(SCN)2 Blend as Electron Transport Layer Results to Consistent Efficiency Improvements in Organic and Hybrid Perovskite Solar Cells",

abstract = "A simple approach that enables a consistent enhancement of the electron extracting properties of the widely used small-molecule Phen-NaDPO and its application in organic solar cells (OSCs) is reported. It is shown that addition of minute amounts of the inorganic molecule Sn(SCN)2 into Phen-NaDPO improves both the electron transport and its film-forming properties. Use of Phen-NaDPO:Sn(SCN)2 blend as the electron transport layer (ETL) in binary PM6:IT-4F OSCs leads to a remarkable increase in the cells' power conversion efficiency (PCE) from 12.6\% (Phen-NaDPO) to 13.5\% (Phen-NaDPO:Sn(SCN)2). Combining the hybrid ETL with the best-in-class organic ternary PM6:Y6:PC70BM systems results to a similarly remarkable PCE increase from 14.2\% (Phen-NaDPO) to 15.6\% (Phen-NaDPO:Sn(SCN)2). The consistent PCE enhancement is attributed to reduced trap-assisted carrier recombination at the bulk-heterojunction/ETL interface due to the presence of new energy states formed upon chemical interaction of Phen-NaDPO with Sn(SCN)2. The versatility of this hybrid ETL is further demonstrated with its application in perovskite solar cells for which an increase in the PCE from 16.6\% to 18.2\% is also demonstrated.",

keywords = "electron transporting layers, nonfullerene acceptors, organic photovoltaics, Phen-NaDPO, tin (II) thiocyanate",

author = "Akmaral Seitkhan and Marios Neophytou and Mindaugas Kirkus and Edy Abou-Hamad and Hedhili, \{Mohamed Nejib\} and Emre Yengel and Yuliar Firdaus and Hendrik Faber and Yuanbao Lin and Leonidas Tsetseris and Iain McCulloch and Anthopoulos, \{Thomas D.\}",

note = "Publisher Copyright: {\textcopyright} 2019 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim",

year = "2019",

month = dec,

day = "1",

doi = "10.1002/adfm.201905810",

language = "English (US)",

volume = "29",

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Seitkhan, A, Neophytou, M, Kirkus, M, Abou-Hamad, E, Hedhili, MN, Yengel, E, Firdaus, Y, Faber, H, Lin, Y, Tsetseris, L, McCulloch, I & Anthopoulos, TD 2019, 'Use of the Phen-NaDPO:Sn(SCN)₂ Blend as Electron Transport Layer Results to Consistent Efficiency Improvements in Organic and Hybrid Perovskite Solar Cells', Advanced Functional Materials, vol. 29, no. 49, 1905810. https://doi.org/10.1002/adfm.201905810

TY - JOUR

T1 - Use of the Phen-NaDPO:Sn(SCN)2 Blend as Electron Transport Layer Results to Consistent Efficiency Improvements in Organic and Hybrid Perovskite Solar Cells

AU - Seitkhan, Akmaral

AU - Neophytou, Marios

AU - Kirkus, Mindaugas

AU - Abou-Hamad, Edy

AU - Hedhili, Mohamed Nejib

AU - Yengel, Emre

AU - Firdaus, Yuliar

AU - Faber, Hendrik

AU - Lin, Yuanbao

AU - Tsetseris, Leonidas

AU - McCulloch, Iain

AU - Anthopoulos, Thomas D.

PY - 2019/12/1

Y1 - 2019/12/1

N2 - A simple approach that enables a consistent enhancement of the electron extracting properties of the widely used small-molecule Phen-NaDPO and its application in organic solar cells (OSCs) is reported. It is shown that addition of minute amounts of the inorganic molecule Sn(SCN)2 into Phen-NaDPO improves both the electron transport and its film-forming properties. Use of Phen-NaDPO:Sn(SCN)2 blend as the electron transport layer (ETL) in binary PM6:IT-4F OSCs leads to a remarkable increase in the cells' power conversion efficiency (PCE) from 12.6% (Phen-NaDPO) to 13.5% (Phen-NaDPO:Sn(SCN)2). Combining the hybrid ETL with the best-in-class organic ternary PM6:Y6:PC70BM systems results to a similarly remarkable PCE increase from 14.2% (Phen-NaDPO) to 15.6% (Phen-NaDPO:Sn(SCN)2). The consistent PCE enhancement is attributed to reduced trap-assisted carrier recombination at the bulk-heterojunction/ETL interface due to the presence of new energy states formed upon chemical interaction of Phen-NaDPO with Sn(SCN)2. The versatility of this hybrid ETL is further demonstrated with its application in perovskite solar cells for which an increase in the PCE from 16.6% to 18.2% is also demonstrated.

AB - A simple approach that enables a consistent enhancement of the electron extracting properties of the widely used small-molecule Phen-NaDPO and its application in organic solar cells (OSCs) is reported. It is shown that addition of minute amounts of the inorganic molecule Sn(SCN)2 into Phen-NaDPO improves both the electron transport and its film-forming properties. Use of Phen-NaDPO:Sn(SCN)2 blend as the electron transport layer (ETL) in binary PM6:IT-4F OSCs leads to a remarkable increase in the cells' power conversion efficiency (PCE) from 12.6% (Phen-NaDPO) to 13.5% (Phen-NaDPO:Sn(SCN)2). Combining the hybrid ETL with the best-in-class organic ternary PM6:Y6:PC70BM systems results to a similarly remarkable PCE increase from 14.2% (Phen-NaDPO) to 15.6% (Phen-NaDPO:Sn(SCN)2). The consistent PCE enhancement is attributed to reduced trap-assisted carrier recombination at the bulk-heterojunction/ETL interface due to the presence of new energy states formed upon chemical interaction of Phen-NaDPO with Sn(SCN)2. The versatility of this hybrid ETL is further demonstrated with its application in perovskite solar cells for which an increase in the PCE from 16.6% to 18.2% is also demonstrated.

KW - electron transporting layers

KW - nonfullerene acceptors

KW - organic photovoltaics

KW - Phen-NaDPO

KW - tin (II) thiocyanate

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DO - 10.1002/adfm.201905810

M3 - Article

AN - SCOPUS:85073990633

SN - 1616-301X

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JO - Advanced Functional Materials

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