Electronic transport in self-organizing columnar phases

Irina Shiyanovskaya; Kenneth D. Singer; Virgil Percec; T. K. Bera; Y. Miura; Martin Glodde

doi:10.1117/12.478361

Electronic transport in self-organizing columnar phases

Irina Shiyanovskaya, Kenneth D. Singer, Virgil Percec, T. K. Bera, Y. Miura, Martin Glodde

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

This paper presents measurements of time-of-flight charge carrier mobility and thermal optical polarized microscopy on a new class of columnar liquid crystals (LC) self-organized into hexagonal columnar mesophase (Φ _h) self-assembled from functionalized dendrons. We discuss the temperature and electric field-independent high hole mobility of 1 - 3.5 × 10^-3 cm²/Vs. The anomalous temperature behavior of the mobility is consistent with polaron transport mechanisms. Studies of time-of-flight transients, which reveal evidence for dynamic defects with lifetimes in the range of 10^-6 s, are presented as aspects of charge generation and recombination kinetics. We demonstrate the enhancement of electron transport in acene-based dendron LCs by doping with TNF-based dendron molecules.

Original language	English
Pages (from-to)	242-252
Number of pages	11
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4991
DOIs	https://doi.org/10.1117/12.478361
Publication status	Published - 2003
Externally published	Yes
Event	PROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Organic Photonic Materials and Devices V - San Jose, CA, United States Duration: Jan 27 2003 → Jan 30 2003

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.478361

Cite this

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title = "Electronic transport in self-organizing columnar phases",

abstract = "This paper presents measurements of time-of-flight charge carrier mobility and thermal optical polarized microscopy on a new class of columnar liquid crystals (LC) self-organized into hexagonal columnar mesophase (Φ h) self-assembled from functionalized dendrons. We discuss the temperature and electric field-independent high hole mobility of 1 - 3.5 × 10-3 cm2/Vs. The anomalous temperature behavior of the mobility is consistent with polaron transport mechanisms. Studies of time-of-flight transients, which reveal evidence for dynamic defects with lifetimes in the range of 10-6 s, are presented as aspects of charge generation and recombination kinetics. We demonstrate the enhancement of electron transport in acene-based dendron LCs by doping with TNF-based dendron molecules.",

author = "Irina Shiyanovskaya and Singer, {Kenneth D.} and Virgil Percec and Bera, {T. K.} and Y. Miura and Martin Glodde",

year = "2003",

doi = "10.1117/12.478361",

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volume = "4991",

pages = "242--252",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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TY - JOUR

T1 - Electronic transport in self-organizing columnar phases

AU - Shiyanovskaya, Irina

AU - Singer, Kenneth D.

AU - Percec, Virgil

AU - Bera, T. K.

AU - Miura, Y.

AU - Glodde, Martin

PY - 2003

Y1 - 2003

N2 - This paper presents measurements of time-of-flight charge carrier mobility and thermal optical polarized microscopy on a new class of columnar liquid crystals (LC) self-organized into hexagonal columnar mesophase (Φ h) self-assembled from functionalized dendrons. We discuss the temperature and electric field-independent high hole mobility of 1 - 3.5 × 10-3 cm2/Vs. The anomalous temperature behavior of the mobility is consistent with polaron transport mechanisms. Studies of time-of-flight transients, which reveal evidence for dynamic defects with lifetimes in the range of 10-6 s, are presented as aspects of charge generation and recombination kinetics. We demonstrate the enhancement of electron transport in acene-based dendron LCs by doping with TNF-based dendron molecules.

AB - This paper presents measurements of time-of-flight charge carrier mobility and thermal optical polarized microscopy on a new class of columnar liquid crystals (LC) self-organized into hexagonal columnar mesophase (Φ h) self-assembled from functionalized dendrons. We discuss the temperature and electric field-independent high hole mobility of 1 - 3.5 × 10-3 cm2/Vs. The anomalous temperature behavior of the mobility is consistent with polaron transport mechanisms. Studies of time-of-flight transients, which reveal evidence for dynamic defects with lifetimes in the range of 10-6 s, are presented as aspects of charge generation and recombination kinetics. We demonstrate the enhancement of electron transport in acene-based dendron LCs by doping with TNF-based dendron molecules.

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DO - 10.1117/12.478361

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EP - 252

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - PROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Organic Photonic Materials and Devices V

Y2 - 27 January 2003 through 30 January 2003

ER -

Electronic transport in self-organizing columnar phases

Abstract

All Science Journal Classification (ASJC) codes

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