Direct Observation of Photo Switching in Tethered Spiropyrans Using the Interfacial Force Microscope

B. C. Bunker; B. I. Kim; J. E. Houston; R. Rosario; A. A. Garcia; M. Hayes; D. Gust; S. T. Picraux

doi:10.1021/nl034759v

Direct Observation of Photo Switching in Tethered Spiropyrans Using the Interfacial Force Microscope

B. C. Bunker, B. I. Kim, J. E. Houston, R. Rosario, A. A. Garcia, M. Hayes, D. Gust, S. T. Picraux

Physics Department

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

67 Scopus citations

Abstract

The interfacial force microscope has been used to establish the changes in the surface chemistry that accompany photoactivated opening and closing of rings in tethered spiropyran monolayers. Contact potential measurements show that ring opening via ultraviolet light creates a more polar surface, while exposure to visible light closes the rings and resets the surface. Normal force measurements show that open ring structures are protonated in electrolyte solutions, amplifying the switching of electrical double-layer forces.

Original language	English
Pages (from-to)	1723-1727
Number of pages	5
Journal	Nano Letters
Volume	3
Issue number	12
DOIs	https://doi.org/10.1021/nl034759v
State	Published - Dec 2003

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10.1021/nl034759v

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abstract = "The interfacial force microscope has been used to establish the changes in the surface chemistry that accompany photoactivated opening and closing of rings in tethered spiropyran monolayers. Contact potential measurements show that ring opening via ultraviolet light creates a more polar surface, while exposure to visible light closes the rings and resets the surface. Normal force measurements show that open ring structures are protonated in electrolyte solutions, amplifying the switching of electrical double-layer forces.",

author = "Bunker, {B. C.} and Kim, {B. I.} and Houston, {J. E.} and R. Rosario and Garcia, {A. A.} and M. Hayes and D. Gust and Picraux, {S. T.}",

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AU - Bunker, B. C.

AU - Kim, B. I.

AU - Houston, J. E.

AU - Rosario, R.

AU - Garcia, A. A.

AU - Hayes, M.

AU - Gust, D.

AU - Picraux, S. T.

PY - 2003/12

Y1 - 2003/12

N2 - The interfacial force microscope has been used to establish the changes in the surface chemistry that accompany photoactivated opening and closing of rings in tethered spiropyran monolayers. Contact potential measurements show that ring opening via ultraviolet light creates a more polar surface, while exposure to visible light closes the rings and resets the surface. Normal force measurements show that open ring structures are protonated in electrolyte solutions, amplifying the switching of electrical double-layer forces.

AB - The interfacial force microscope has been used to establish the changes in the surface chemistry that accompany photoactivated opening and closing of rings in tethered spiropyran monolayers. Contact potential measurements show that ring opening via ultraviolet light creates a more polar surface, while exposure to visible light closes the rings and resets the surface. Normal force measurements show that open ring structures are protonated in electrolyte solutions, amplifying the switching of electrical double-layer forces.

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U2 - 10.1021/nl034759v

DO - 10.1021/nl034759v

M3 - Article

AN - SCOPUS:0346730943

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JO - Nano Letters

JF - Nano Letters

IS - 12

ER -

Direct Observation of Photo Switching in Tethered Spiropyrans Using the Interfacial Force Microscope

Abstract

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