Publication Type |
Journal Article |
School or College |
College of Science |
Department |
Physics |
Creator |
Vardeny, Zeev Valentine |
Other Author |
Ni, Q.-X.; Shinar, J.; Grigoras, S.; Pang, Y.; Ijadi-Maghsoodi, S.; Barton, T. J. |
Title |
Anomalous optical and ESR properties of doped polydiethynylsilanes |
Date |
1991-09 |
Description |
The optical, transport, and ESR properties of soluble conducting four-membered polydiethynylsilane heterocycles are described. The undoped one-dimensional gap is 2.0 eV in both films and solutions; no photoluminescence is observed. I2 doping induces a single absorption band at -1.05 eV in solutions and lightly doped films, but another at -0.55 eV in heavily doped films. Both are correlated with strong ir-active vibrations associated with known lines in Raman scattering. The doping-induced ESR of the solutions is linear in the 1.05-eV peak, but only ~2% of the carriers yield an ESR, which is motionally narrowed. No light-induced ESR is detected. The results are discussed in relation to solitons, polarons, and bipolarons in a degenerate ground-state system. |
Type |
Text |
Publisher |
American Physical Society |
Journal Title |
Physical Review B |
Volume |
44 |
Issue |
11 |
First Page |
5939 |
Last Page |
5942 |
DOI |
10.1103/PhysRevB.44.5939 |
citatation_issn |
0163-1829 |
Subject |
Polydiethynylsilane; Doped polydiethynylsilanes |
Subject LCSH |
Conducting polymers -- Optical properties; Semiconductors -- Optical properties |
Language |
eng |
Bibliographic Citation |
Ni, Q.-X., Shinar, J., Vardeny, Z. V., Grigoras, S., Pang, Y., Ijadi-Maghsoodi, S., & Barton, T. J. (1991). Anomalous optical and ESR properties of doped polydiethynylsilanes. Physical Review B, 44(11), 5939-42. |
Rights Management |
(c) American Physical Society http://dx.doi.org/10.1103/PhysRevB.44.5939 |
Format Medium |
application/pdf |
Format Extent |
337,745 bytes |
Identifier |
ir-main,9690 |
ARK |
ark:/87278/s6gf1bmx |
Setname |
ir_uspace |
ID |
702553 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6gf1bmx |