Doped β-carotene films: spinless charge storage stabilized by structural relaxation

E. Ehrenfreund; D. Moses; A. J. Heeger; J. Cornil; J. L. Brédas

doi:10.1016/0009-2614(92)85933-2

Doped β-carotene films: spinless charge storage stabilized by structural relaxation

E. Ehrenfreund
, D. Moses
, A. J. Heeger
, J. Cornil
, J. L. Brédas

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

52 Scopus citations

Abstract

We show that soliton-like charge storage configurations are formed in β-carotene upon p-doping by intermolecular charge transfer. The charge storage states are characterized by a single-intragap absorption band, by zero spin, and by significant structural (bond length) relaxation. The similarity to the charged solitons observed in trans-polyacetylene demonstrates the important role of solitons in finite conjugated chains.

Original language	English (US)
Pages (from-to)	84-90
Number of pages	7
Journal	Chemical Physics Letters
Volume	196
Issue number	1-2
DOIs	https://doi.org/10.1016/0009-2614(92)85933-2
State	Published - Aug 7 1992
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/0009-2614(92)85933-2

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title = "Doped β-carotene films: spinless charge storage stabilized by structural relaxation",

abstract = "We show that soliton-like charge storage configurations are formed in β-carotene upon p-doping by intermolecular charge transfer. The charge storage states are characterized by a single-intragap absorption band, by zero spin, and by significant structural (bond length) relaxation. The similarity to the charged solitons observed in trans-polyacetylene demonstrates the important role of solitons in finite conjugated chains.",

author = "E. Ehrenfreund and D. Moses and Heeger, \{A. J.\} and J. Cornil and Br{\'e}das, \{J. L.\}",

note = "Funding Information: sions, Dr. Yong Cao for help with the AsF5 doping, and K. Lee for providing the mid-infrared spectra. This research was supported by a grant from the National Science Foundation, NSF-PDMR89-15207. EE acknowledges support from the US-Israel Binational Science Foundation (BSF), Jerusalem (Israel). The work at Mons has been supported partly by SPPS (Contract IT/SC/22), the {"}Pole d'Attraction Interuniversitaire en Chimie Supramoleculaire et Catalyse{"}, and an IBM Academic Joint Study. The collaboration between UCSB and Mons is supported by international NSF/FNRS grants.",

year = "1992",

month = aug,

day = "7",

doi = "10.1016/0009-2614(92)85933-2",

language = "English (US)",

volume = "196",

pages = "84--90",

journal = "Chemical Physics Letters",

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TY - JOUR

T1 - Doped β-carotene films

T2 - spinless charge storage stabilized by structural relaxation

AU - Ehrenfreund, E.

AU - Moses, D.

AU - Heeger, A. J.

AU - Cornil, J.

AU - Brédas, J. L.

N1 - Funding Information: sions, Dr. Yong Cao for help with the AsF5 doping, and K. Lee for providing the mid-infrared spectra. This research was supported by a grant from the National Science Foundation, NSF-PDMR89-15207. EE acknowledges support from the US-Israel Binational Science Foundation (BSF), Jerusalem (Israel). The work at Mons has been supported partly by SPPS (Contract IT/SC/22), the "Pole d'Attraction Interuniversitaire en Chimie Supramoleculaire et Catalyse", and an IBM Academic Joint Study. The collaboration between UCSB and Mons is supported by international NSF/FNRS grants.

PY - 1992/8/7

Y1 - 1992/8/7

N2 - We show that soliton-like charge storage configurations are formed in β-carotene upon p-doping by intermolecular charge transfer. The charge storage states are characterized by a single-intragap absorption band, by zero spin, and by significant structural (bond length) relaxation. The similarity to the charged solitons observed in trans-polyacetylene demonstrates the important role of solitons in finite conjugated chains.

AB - We show that soliton-like charge storage configurations are formed in β-carotene upon p-doping by intermolecular charge transfer. The charge storage states are characterized by a single-intragap absorption band, by zero spin, and by significant structural (bond length) relaxation. The similarity to the charged solitons observed in trans-polyacetylene demonstrates the important role of solitons in finite conjugated chains.

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UR - https://www.scopus.com/pages/publications/0002080268#tab=citedBy

U2 - 10.1016/0009-2614(92)85933-2

DO - 10.1016/0009-2614(92)85933-2

M3 - Article

AN - SCOPUS:0002080268

SN - 0009-2614

VL - 196

SP - 84

EP - 90

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-2

ER -

Doped β-carotene films: spinless charge storage stabilized by structural relaxation

Abstract

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