Improvement of Interfacial Contacts for New Small-Molecule Bulk-Heterojunction Organic Photovoltaics

Andres Garcia; Gregory C. Welch; Erin L. Ratcliff; David S. Ginley; Guillermo C. Bazan; Dana C. Olson

doi:10.1002/adma.201200963

Improvement of Interfacial Contacts for New Small-Molecule Bulk-Heterojunction Organic Photovoltaics

Andres Garcia, Gregory C. Welch, Erin L. Ratcliff, David S. Ginley, Guillermo C. Bazan, Dana C. Olson

Materials, Chemical, and Computational Science

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

138 Scopus Citations

Abstract

The influence of protonation reactions between poly(3,4- ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and a thiadiazolo[3,4-c]pyridine small-molecule donor are reported; these result in poor solar-cell performance due to a barrier for charge extraction. The use of a NiO_x contact eliminates such deleterious chemical interactions and results in substantial improvements in open-circuit voltage, fill factor, and an increased power conversion efficiency from 2.3% to 5.1%.

Original language	American English
Pages (from-to)	5368-5373
Number of pages	6
Journal	Advanced Materials
Volume	24
Issue number	39
DOIs	https://doi.org/10.1002/adma.201200963 https://doi.org/10.1002/adma.201200963
State	Published - 2012

NREL Publication Number

NREL/JA-5200-57004

Keywords

Bulk-Heterojunction Organic Photovoltaics
Hole transport layer
Interfacial Chemistry
Organic Solar Cells
Small Molecules

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title = "Improvement of Interfacial Contacts for New Small-Molecule Bulk-Heterojunction Organic Photovoltaics",

abstract = "The influence of protonation reactions between poly(3,4- ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and a thiadiazolo[3,4-c]pyridine small-molecule donor are reported; these result in poor solar-cell performance due to a barrier for charge extraction. The use of a NiOx contact eliminates such deleterious chemical interactions and results in substantial improvements in open-circuit voltage, fill factor, and an increased power conversion efficiency from 2.3% to 5.1%.",

keywords = "Bulk-Heterojunction Organic Photovoltaics, Hole transport layer, Interfacial Chemistry, Organic Solar Cells, Small Molecules",

author = "Andres Garcia and Welch, {Gregory C.} and Ratcliff, {Erin L.} and Ginley, {David S.} and Bazan, {Guillermo C.} and Olson, {Dana C.}",

year = "2012",

doi = "10.1002/adma.201200963",

language = "American English",

volume = "24",

pages = "5368--5373",

journal = "Advanced Materials",

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T1 - Improvement of Interfacial Contacts for New Small-Molecule Bulk-Heterojunction Organic Photovoltaics

AU - Garcia, Andres

AU - Welch, Gregory C.

AU - Ratcliff, Erin L.

AU - Ginley, David S.

AU - Bazan, Guillermo C.

AU - Olson, Dana C.

PY - 2012

Y1 - 2012

N2 - The influence of protonation reactions between poly(3,4- ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and a thiadiazolo[3,4-c]pyridine small-molecule donor are reported; these result in poor solar-cell performance due to a barrier for charge extraction. The use of a NiOx contact eliminates such deleterious chemical interactions and results in substantial improvements in open-circuit voltage, fill factor, and an increased power conversion efficiency from 2.3% to 5.1%.

AB - The influence of protonation reactions between poly(3,4- ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and a thiadiazolo[3,4-c]pyridine small-molecule donor are reported; these result in poor solar-cell performance due to a barrier for charge extraction. The use of a NiOx contact eliminates such deleterious chemical interactions and results in substantial improvements in open-circuit voltage, fill factor, and an increased power conversion efficiency from 2.3% to 5.1%.

KW - Bulk-Heterojunction Organic Photovoltaics

KW - Hole transport layer

KW - Interfacial Chemistry

KW - Organic Solar Cells

KW - Small Molecules

UR - http://www.scopus.com/inward/record.url?scp=84867009984&partnerID=8YFLogxK

U2 - 10.1002/adma.201200963

DO - 10.1002/adma.201200963

M3 - Article

C2 - 22886940

AN - SCOPUS:84867009984

SN - 0935-9648

VL - 24

SP - 5368

EP - 5373

JO - Advanced Materials

JF - Advanced Materials

IS - 39

ER -

Improvement of Interfacial Contacts for New Small-Molecule Bulk-Heterojunction Organic Photovoltaics

Abstract

NREL Publication Number

Keywords

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