Development of non-halogenated binary solvent systems for high performance bulk-heterojunction organic solar cells

Choong Do Park, Tyler Fleetham, Jian Li

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Halogenated solvents such as dichlorobenzene (DCB) are commonly used in the fabrication of bulk-heterojunction (BHJ) organic solar cells. However, most halogenated solvents are very toxic. This report provides a route to eliminate halogenated solvents based on Hansen Solubility Parameters (HSPs) for manufacturing high efficiency BHJ solar cells. The device performances fabricated from several different binary solvent systems were compared to that from DCB. For the investigation of different gel behavior of solvent mixtures, Hansen solubility parameters and viscosity were mainly considered for the selection of binary solvent mixture candidates. Upon the addition of 20 vol.% benzaldehyde (BA) to p-xylene (p-XL), the device performances were improved in power conversion efficiency (PCE) from 3.1% to 3.8% and external quantum efficiency (EQE) from 63% to 70%. The solar cell devices fabricated using p-XL/BA binary solvent mixtures exhibited PCE comparable to that from DCB.

Original languageEnglish (US)
Pages (from-to)95-100
Number of pages6
JournalOrganic Electronics: physics, materials, applications
Volume16
DOIs
StatePublished - 2015

Fingerprint

Heterojunctions
heterojunctions
solar cells
xylene
Xylene
Conversion efficiency
Solar cells
solubility
Solubility
Poisons
Organic solar cells
Quantum efficiency
quantum efficiency
Gels
manufacturing
routes
gels
Viscosity
viscosity
Fabrication

Keywords

  • Binary solvent system
  • Bulk heterojunction
  • Hansen solubility parameter
  • Non-halogenated solvents
  • Photovoltaic

ASJC Scopus subject areas

  • Biomaterials
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Electrical and Electronic Engineering
  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Development of non-halogenated binary solvent systems for high performance bulk-heterojunction organic solar cells. / Park, Choong Do; Fleetham, Tyler; Li, Jian.

In: Organic Electronics: physics, materials, applications, Vol. 16, 2015, p. 95-100.

Research output: Contribution to journalArticle

@article{2cbdb8ffc41c4c37bc4cada7c3f99c65,
title = "Development of non-halogenated binary solvent systems for high performance bulk-heterojunction organic solar cells",
abstract = "Halogenated solvents such as dichlorobenzene (DCB) are commonly used in the fabrication of bulk-heterojunction (BHJ) organic solar cells. However, most halogenated solvents are very toxic. This report provides a route to eliminate halogenated solvents based on Hansen Solubility Parameters (HSPs) for manufacturing high efficiency BHJ solar cells. The device performances fabricated from several different binary solvent systems were compared to that from DCB. For the investigation of different gel behavior of solvent mixtures, Hansen solubility parameters and viscosity were mainly considered for the selection of binary solvent mixture candidates. Upon the addition of 20 vol.{\%} benzaldehyde (BA) to p-xylene (p-XL), the device performances were improved in power conversion efficiency (PCE) from 3.1{\%} to 3.8{\%} and external quantum efficiency (EQE) from 63{\%} to 70{\%}. The solar cell devices fabricated using p-XL/BA binary solvent mixtures exhibited PCE comparable to that from DCB.",
keywords = "Binary solvent system, Bulk heterojunction, Hansen solubility parameter, Non-halogenated solvents, Photovoltaic",
author = "Park, {Choong Do} and Tyler Fleetham and Jian Li",
year = "2015",
doi = "10.1016/j.orgel.2014.10.025",
language = "English (US)",
volume = "16",
pages = "95--100",
journal = "Organic Electronics",
issn = "1566-1199",
publisher = "Elsevier",

}

TY - JOUR

T1 - Development of non-halogenated binary solvent systems for high performance bulk-heterojunction organic solar cells

AU - Park, Choong Do

AU - Fleetham, Tyler

AU - Li, Jian

PY - 2015

Y1 - 2015

N2 - Halogenated solvents such as dichlorobenzene (DCB) are commonly used in the fabrication of bulk-heterojunction (BHJ) organic solar cells. However, most halogenated solvents are very toxic. This report provides a route to eliminate halogenated solvents based on Hansen Solubility Parameters (HSPs) for manufacturing high efficiency BHJ solar cells. The device performances fabricated from several different binary solvent systems were compared to that from DCB. For the investigation of different gel behavior of solvent mixtures, Hansen solubility parameters and viscosity were mainly considered for the selection of binary solvent mixture candidates. Upon the addition of 20 vol.% benzaldehyde (BA) to p-xylene (p-XL), the device performances were improved in power conversion efficiency (PCE) from 3.1% to 3.8% and external quantum efficiency (EQE) from 63% to 70%. The solar cell devices fabricated using p-XL/BA binary solvent mixtures exhibited PCE comparable to that from DCB.

AB - Halogenated solvents such as dichlorobenzene (DCB) are commonly used in the fabrication of bulk-heterojunction (BHJ) organic solar cells. However, most halogenated solvents are very toxic. This report provides a route to eliminate halogenated solvents based on Hansen Solubility Parameters (HSPs) for manufacturing high efficiency BHJ solar cells. The device performances fabricated from several different binary solvent systems were compared to that from DCB. For the investigation of different gel behavior of solvent mixtures, Hansen solubility parameters and viscosity were mainly considered for the selection of binary solvent mixture candidates. Upon the addition of 20 vol.% benzaldehyde (BA) to p-xylene (p-XL), the device performances were improved in power conversion efficiency (PCE) from 3.1% to 3.8% and external quantum efficiency (EQE) from 63% to 70%. The solar cell devices fabricated using p-XL/BA binary solvent mixtures exhibited PCE comparable to that from DCB.

KW - Binary solvent system

KW - Bulk heterojunction

KW - Hansen solubility parameter

KW - Non-halogenated solvents

KW - Photovoltaic

UR - http://www.scopus.com/inward/record.url?scp=84910680315&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84910680315&partnerID=8YFLogxK

U2 - 10.1016/j.orgel.2014.10.025

DO - 10.1016/j.orgel.2014.10.025

M3 - Article

VL - 16

SP - 95

EP - 100

JO - Organic Electronics

JF - Organic Electronics

SN - 1566-1199

ER -