Correlation between surface photovoltage and blend morphology in polyfluorene-based photodiodes

Marco Chiesa; Lukas Burgi; Ji Seon Kim; Rafi Shikler; Richard H. Friend; Henning Sirringhaus

doi:10.1021/nl047929s

Correlation between surface photovoltage and blend morphology in polyfluorene-based photodiodes

Marco Chiesa, Lukas Burgi, Ji Seon Kim, Rafi Shikler, Richard H. Friend, Henning Sirringhaus

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

160 Scopus citations

Abstract

We present a microscopic study of photoinduced charge generation in polyfluorene-based photovoltaic structures. The sub-100 nm lateral resolution of scanning Kelvin probe microscopy allows characterizing the three-dimensional structure of thin films of blends of poly-(9,9'-dioctylfluorene-co- benzothiadiazole) (F8BT) and poly-(9,9'-dioctylfluorene-co-bis-N,N'-(4- butylphenyl)-bis-N,N-phenyl-1,4-phenylenediamine) (PFB). From the strong correlation between surface photovoltage and blend morphology, we propose a simple model for the lateral and vertical film structure identifying in particular those regions with the most efficient conduction pathway for the photocurrent.

Original language	English
Pages (from-to)	559-563
Number of pages	5
Journal	Nano Letters
Volume	5
Issue number	4
DOIs	https://doi.org/10.1021/nl047929s
State	Published - 1 Apr 2005
Externally published	Yes

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/nl047929s

Cite this

@article{7dd9117e2bc5448395e7670701188a61,

title = "Correlation between surface photovoltage and blend morphology in polyfluorene-based photodiodes",

abstract = "We present a microscopic study of photoinduced charge generation in polyfluorene-based photovoltaic structures. The sub-100 nm lateral resolution of scanning Kelvin probe microscopy allows characterizing the three-dimensional structure of thin films of blends of poly-(9,9'-dioctylfluorene-co- benzothiadiazole) (F8BT) and poly-(9,9'-dioctylfluorene-co-bis-N,N'-(4- butylphenyl)-bis-N,N-phenyl-1,4-phenylenediamine) (PFB). From the strong correlation between surface photovoltage and blend morphology, we propose a simple model for the lateral and vertical film structure identifying in particular those regions with the most efficient conduction pathway for the photocurrent.",

author = "Marco Chiesa and Lukas Burgi and Kim, {Ji Seon} and Rafi Shikler and Friend, {Richard H.} and Henning Sirringhaus",

year = "2005",

month = apr,

day = "1",

doi = "10.1021/nl047929s",

language = "English",

volume = "5",

pages = "559--563",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "4",

}

TY - JOUR

T1 - Correlation between surface photovoltage and blend morphology in polyfluorene-based photodiodes

AU - Chiesa, Marco

AU - Burgi, Lukas

AU - Kim, Ji Seon

AU - Shikler, Rafi

AU - Friend, Richard H.

AU - Sirringhaus, Henning

PY - 2005/4/1

Y1 - 2005/4/1

N2 - We present a microscopic study of photoinduced charge generation in polyfluorene-based photovoltaic structures. The sub-100 nm lateral resolution of scanning Kelvin probe microscopy allows characterizing the three-dimensional structure of thin films of blends of poly-(9,9'-dioctylfluorene-co- benzothiadiazole) (F8BT) and poly-(9,9'-dioctylfluorene-co-bis-N,N'-(4- butylphenyl)-bis-N,N-phenyl-1,4-phenylenediamine) (PFB). From the strong correlation between surface photovoltage and blend morphology, we propose a simple model for the lateral and vertical film structure identifying in particular those regions with the most efficient conduction pathway for the photocurrent.

AB - We present a microscopic study of photoinduced charge generation in polyfluorene-based photovoltaic structures. The sub-100 nm lateral resolution of scanning Kelvin probe microscopy allows characterizing the three-dimensional structure of thin films of blends of poly-(9,9'-dioctylfluorene-co- benzothiadiazole) (F8BT) and poly-(9,9'-dioctylfluorene-co-bis-N,N'-(4- butylphenyl)-bis-N,N-phenyl-1,4-phenylenediamine) (PFB). From the strong correlation between surface photovoltage and blend morphology, we propose a simple model for the lateral and vertical film structure identifying in particular those regions with the most efficient conduction pathway for the photocurrent.

UR - http://www.scopus.com/inward/record.url?scp=18144400062&partnerID=8YFLogxK

U2 - 10.1021/nl047929s

DO - 10.1021/nl047929s

M3 - Article

C2 - 15826087

AN - SCOPUS:18144400062

SN - 1530-6984

VL - 5

SP - 559

EP - 563

JO - Nano Letters

JF - Nano Letters

IS - 4

ER -

Correlation between surface photovoltage and blend morphology in polyfluorene-based photodiodes

Abstract

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this