Photoconductivity and magnetoconductance effects on vacuum vapor deposition films of weak charge-transfer complexes

2017 ◽  
Vol 19 (29) ◽  
pp. 18845-18853 ◽  
Author(s):  
Ken Kato ◽  
Shogo Hagi ◽  
Masumi Hinoshita ◽  
Eiji Shikoh ◽  
Yoshio Teki
Keyword(s):  
Thin Films ◽  
Charge Transfer ◽  
Vapor Deposition ◽  
Pyromellitic Dianhydride ◽  
Charge Transfer Complexes ◽  
Weak Charge

Thin films of weak charge-transfer complexes (pyrene/dimethylpyromellidiimide or pyrene/pyromellitic dianhydride) were investigated by time-resolve ESR, photoconductivity, and magneto-photoconductance measurements.

Highly Sensitive Absorption Measurements in Organic Thin Films: Charge Transfer Complexes and Light-Induced Changes

1991 ◽  
Vol 228 ◽  
Author(s):  
Andrew Skumanich
Keyword(s):  
Thin Films ◽  
Charge Transfer ◽  
Energy Levels ◽  
Organic Thin Films ◽  
Organic Films ◽  
Charge Transfer Complexes ◽  
Weak Charge ◽  
Polymeric Thin Films ◽  
Photothermal Deflection Spectroscopy ◽  
Induced Changes

ABSTRACTUsing the sensitive absorption technique of Photothermal Deflection Spectroscopy (PI1S) it is possible to detect subtle spectral features in the absorption spectra of polymeric thin films that cannot be detected by other means. This paper describes observations of weak charge-transfer complex (CIC) formation and also light-induced changes in various organic films. The filns studied were those commonly used as charge transport materials in organic photoconductors, comprised of a small transport molecule and a polymer binder. The optically measured CTC bands can be used to establish single electron energy levels of the constituents. Reproducible photo-induced changes are manifest both in the strong UV transitions as well as in the “sub-gap” absorption and appear to be correlated with the photo-chemical stability of the constituents. The light-fatigue has both a reversible as well as irreversible component.

Raman studies of lattice vibrations in weak charge-transfer complexes: Naphthalene-tetrachlorophthalic anhydride

1984 ◽  
Vol 109 (6) ◽  
pp. 615-619 ◽  
Author(s):  
M.H. Kuok ◽  
E.C. Looi ◽  
S.H. Tang ◽  
C.T. Lin ◽  
C.A. Caetano
Keyword(s):  
Charge Transfer ◽  
Charge Transfer Complexes ◽  
Lattice Vibrations ◽  
Weak Charge

MOLECULAR MOTION IN WEAK CHARGE TRANSFER COMPLEXES

1966 ◽  
Vol 44 (8) ◽  
pp. 945-952 ◽  
Author(s):  
D. F. R. Gilson ◽  
C. A. McDowell
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Charge Transfer ◽  
Molecular Motion ◽  
Charge Transfer Complexes ◽  
Weak Charge ◽  
Magnetic Resonance Studies ◽  
Second Moments ◽  
Line Nuclear Magnetic Resonance ◽  
Pure Compounds ◽  
Wide Line

"Wide line" nuclear magnetic resonance studies of several charge transfer complexes are reported. Line width transitions and comparisons of theoretical and experimental second moments indicate that molecular rotation occurs in several of these complexes. Estimates of the barriers to reorientation in the complexes show these to be lower than those observed for the corresponding pure compounds.

Thin-film phases of organic charge-transfer complexes formed by chemical vapor deposition

2009 ◽  
Vol 518 (1) ◽  
pp. 299-304 ◽  
Author(s):  
Hiroshi Wada ◽  
Dominique de Caro ◽  
Lydie Valade ◽  
Tatsuhiko Ozawa ◽  
Yoshimasa Bando ◽  
...  
Keyword(s):  
Thin Film ◽  
Chemical Vapor Deposition ◽  
Charge Transfer ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Charge Transfer Complexes
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