Single-molecule imaging of organic semiconductors: Toward nanoscale insights into photophysics and molecular packing

W. E.B. Shepherd; R. Grollman; A. Robertson; K. Paudel; R. Hallani; M. A. Loth; J. E. Anthony; O. Ostroverkhova

doi:10.1016/j.cplett.2015.04.014

Single-molecule imaging of organic semiconductors: Toward nanoscale insights into photophysics and molecular packing

W. E.B. Shepherd, R. Grollman, A. Robertson, K. Paudel, R. Hallani, M. A. Loth, J. E. Anthony, O. Ostroverkhova

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

16 Scopus citations

Abstract

Photophysical properties of functionalized anthradithiophene (ADT) and pentacene (Pn) derivatives, as well as energy and charge transfer properties of donor-acceptor (D/A) pairs of these derivatives, are presented. The molecules studied were imaged on the single-molecule level in a polymeric and in a functionalized benzothiophene (BTBTB) crystalline host using room-temperature wide-field epifluorescence microscopy. The BTBTB host imposed orientational constraints on the guest molecules, depending on their functionalization. Flexibility of functionalization of both guest (ADT, Pn) and host (BTBTB) molecules can be used for systematic studies of nanoscale morphology and photophysics of D/A organic semiconductor bulk heterojunctions using single-molecule fluorescence microscopy.

Original language	English
Pages (from-to)	29-35
Number of pages	7
Journal	Chemical Physics Letters
Volume	629
DOIs	https://doi.org/10.1016/j.cplett.2015.04.014
State	Published - Jun 1 2015

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.

Funding

We thank Prof. K. A. Willets for helpful discussions, G. Banton for assistance with software development for analysis of single molecule trajectories, Prof. R. J. Twieg for DCDHF, and K. McLelland and Prof. M. Graham for assistance with measurements of fluorescence spectra from D/A samples. This work was supported by the National Science Foundation via CAREER program (DMR-0748671) and DMR-1207309, as well as the SOLAR program (DMR-1035257).

Funders	Funder number
National Science Foundation (NSF)	DMR-0748671, DMR-1035257, DMR-1207309

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2015.04.014

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title = "Single-molecule imaging of organic semiconductors: Toward nanoscale insights into photophysics and molecular packing",

abstract = "Photophysical properties of functionalized anthradithiophene (ADT) and pentacene (Pn) derivatives, as well as energy and charge transfer properties of donor-acceptor (D/A) pairs of these derivatives, are presented. The molecules studied were imaged on the single-molecule level in a polymeric and in a functionalized benzothiophene (BTBTB) crystalline host using room-temperature wide-field epifluorescence microscopy. The BTBTB host imposed orientational constraints on the guest molecules, depending on their functionalization. Flexibility of functionalization of both guest (ADT, Pn) and host (BTBTB) molecules can be used for systematic studies of nanoscale morphology and photophysics of D/A organic semiconductor bulk heterojunctions using single-molecule fluorescence microscopy.",

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AU - Shepherd, W. E.B.

AU - Grollman, R.

AU - Robertson, A.

AU - Paudel, K.

AU - Hallani, R.

AU - Loth, M. A.

AU - Anthony, J. E.

AU - Ostroverkhova, O.

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N2 - Photophysical properties of functionalized anthradithiophene (ADT) and pentacene (Pn) derivatives, as well as energy and charge transfer properties of donor-acceptor (D/A) pairs of these derivatives, are presented. The molecules studied were imaged on the single-molecule level in a polymeric and in a functionalized benzothiophene (BTBTB) crystalline host using room-temperature wide-field epifluorescence microscopy. The BTBTB host imposed orientational constraints on the guest molecules, depending on their functionalization. Flexibility of functionalization of both guest (ADT, Pn) and host (BTBTB) molecules can be used for systematic studies of nanoscale morphology and photophysics of D/A organic semiconductor bulk heterojunctions using single-molecule fluorescence microscopy.

AB - Photophysical properties of functionalized anthradithiophene (ADT) and pentacene (Pn) derivatives, as well as energy and charge transfer properties of donor-acceptor (D/A) pairs of these derivatives, are presented. The molecules studied were imaged on the single-molecule level in a polymeric and in a functionalized benzothiophene (BTBTB) crystalline host using room-temperature wide-field epifluorescence microscopy. The BTBTB host imposed orientational constraints on the guest molecules, depending on their functionalization. Flexibility of functionalization of both guest (ADT, Pn) and host (BTBTB) molecules can be used for systematic studies of nanoscale morphology and photophysics of D/A organic semiconductor bulk heterojunctions using single-molecule fluorescence microscopy.

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Single-molecule imaging of organic semiconductors: Toward nanoscale insights into photophysics and molecular packing

Abstract

Bibliographical note

Funding

ASJC Scopus subject areas

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