Fluorinated and hydrogenated self-assembled monolayers (SAMs) on anodes: Effects of SAM chemistry on device characteristics of polymer solar cells

He Wang; Jeffrey M. Mativetsky; Yi Ren; Enrique D. Gomez; Cherno Jaye; Jeffrey Schwartz; Daniel A. Fischer; Yueh Lin Loo

doi:10.1016/j.orgel.2014.09.010

Fluorinated and hydrogenated self-assembled monolayers (SAMs) on anodes: Effects of SAM chemistry on device characteristics of polymer solar cells

He Wang, Jeffrey M. Mativetsky, Yi Ren, Enrique D. Gomez, Cherno Jaye, Jeffrey Schwartz, Daniel A. Fischer, Yueh Lin Loo

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

10 Scopus citations

Abstract

We adsorbed fluorinated-alkyl (F_mSAM) and hydrogenated-alkyl (H_mSAM) phosphonic acids with different molecular lengths on anodes of bulk-heterojunction polymer solar cells. We found the fill factors and series resistances of devices having F_mSAMs to more steeply depend on molecular length than those having H_mSAMs. We attribute this phenomenon to the smaller tunneling decay factor of H_mSAM compared to F_mSAM, which is consistent with DFT calculations that reveal differences in the extents of electron density localization of the highest occupied molecular orbitals of these species.

Original language	English (US)
Pages (from-to)	3333-3340
Number of pages	8
Journal	Organic Electronics
Volume	15
Issue number	11
DOIs	https://doi.org/10.1016/j.orgel.2014.09.010
State	Published - Nov 2014

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Biomaterials
General Chemistry
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

Keywords

Device characteristics
Fluorinated
Hydrogenated
Polymer solar cells
Self-assembled monolayer
Tunneling decay factor

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10.1016/j.orgel.2014.09.010

Cite this

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title = "Fluorinated and hydrogenated self-assembled monolayers (SAMs) on anodes: Effects of SAM chemistry on device characteristics of polymer solar cells",

abstract = "We adsorbed fluorinated-alkyl (FmSAM) and hydrogenated-alkyl (HmSAM) phosphonic acids with different molecular lengths on anodes of bulk-heterojunction polymer solar cells. We found the fill factors and series resistances of devices having FmSAMs to more steeply depend on molecular length than those having HmSAMs. We attribute this phenomenon to the smaller tunneling decay factor of HmSAM compared to FmSAM, which is consistent with DFT calculations that reveal differences in the extents of electron density localization of the highest occupied molecular orbitals of these species.",

keywords = "Device characteristics, Fluorinated, Hydrogenated, Polymer solar cells, Self-assembled monolayer, Tunneling decay factor",

author = "He Wang and Mativetsky, {Jeffrey M.} and Yi Ren and Gomez, {Enrique D.} and Cherno Jaye and Jeffrey Schwartz and Fischer, {Daniel A.} and Loo, {Yueh Lin}",

year = "2014",

month = nov,

doi = "10.1016/j.orgel.2014.09.010",

language = "English (US)",

volume = "15",

pages = "3333--3340",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier",

number = "11",

}

TY - JOUR

T1 - Fluorinated and hydrogenated self-assembled monolayers (SAMs) on anodes

T2 - Effects of SAM chemistry on device characteristics of polymer solar cells

AU - Wang, He

AU - Mativetsky, Jeffrey M.

AU - Ren, Yi

AU - Gomez, Enrique D.

AU - Jaye, Cherno

AU - Schwartz, Jeffrey

AU - Fischer, Daniel A.

AU - Loo, Yueh Lin

PY - 2014/11

Y1 - 2014/11

N2 - We adsorbed fluorinated-alkyl (FmSAM) and hydrogenated-alkyl (HmSAM) phosphonic acids with different molecular lengths on anodes of bulk-heterojunction polymer solar cells. We found the fill factors and series resistances of devices having FmSAMs to more steeply depend on molecular length than those having HmSAMs. We attribute this phenomenon to the smaller tunneling decay factor of HmSAM compared to FmSAM, which is consistent with DFT calculations that reveal differences in the extents of electron density localization of the highest occupied molecular orbitals of these species.

AB - We adsorbed fluorinated-alkyl (FmSAM) and hydrogenated-alkyl (HmSAM) phosphonic acids with different molecular lengths on anodes of bulk-heterojunction polymer solar cells. We found the fill factors and series resistances of devices having FmSAMs to more steeply depend on molecular length than those having HmSAMs. We attribute this phenomenon to the smaller tunneling decay factor of HmSAM compared to FmSAM, which is consistent with DFT calculations that reveal differences in the extents of electron density localization of the highest occupied molecular orbitals of these species.

KW - Device characteristics

KW - Fluorinated

KW - Hydrogenated

KW - Polymer solar cells

KW - Self-assembled monolayer

KW - Tunneling decay factor

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U2 - 10.1016/j.orgel.2014.09.010

DO - 10.1016/j.orgel.2014.09.010

M3 - Article

AN - SCOPUS:84908054303

SN - 1566-1199

VL - 15

SP - 3333

EP - 3340

JO - Organic Electronics

JF - Organic Electronics

IS - 11

ER -

Fluorinated and hydrogenated self-assembled monolayers (SAMs) on anodes: Effects of SAM chemistry on device characteristics of polymer solar cells

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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