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

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

139 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	English (US)
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
State	Published - Oct 9 2012

Keywords

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

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.201200963

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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",

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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 - 2012/10/9

Y1 - 2012/10/9

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

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Improvement of interfacial contacts for new small-molecule bulk-heterojunction organic photovoltaics

Abstract

Keywords

ASJC Scopus subject areas

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