Femtosecond time-resolved two-photon photoemission study of organic semiconductor copper phthalocyanine film
- 1. Department of Mechanical Engineering, Kobe University, Nada-ku, Kobe 657-8501 (Japan) and Department of Physics, Tohoku University, Aoba-ku, Sendai 980-8578 (Japan) and Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627 (United States)
- 2. Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627 (United States)
Description
We have carried out a femtosecond (fs) two-photon photoemission study of organic semiconductor copper phthalocyanine (CuPc) film. Furthermore, we have carried out the photoemission (PES) and inverse photoemission (IPES) studies. From the simultaneous PES and IPES measurements, the lowest unoccupied molecular orbital, highest occupied molecular orbital, and ionization potential of CuPc film have been directly determined. From the detailed time-resolved two-photon photoemission measurements, it is found that the relaxation lifetime of excited state is extremely short (all below 50 fs) and monotonously became faster with increasing excitation energy. From these results, we discuss the electronic structure and excited-state dynamics in the organic semiconductor CuPc film
Additional details
Identifiers
- DOI
- 10.1016/j.elspec.2005.01.105;
- PII
- S0368-2048(05)00061-7;
Publishing Information
- Journal Title
- Journal of Electron Spectroscopy and Related Phenomena
- Journal Volume
- 144-147
- Journal Page Range
- p. 327-329
- ISSN
- 0368-2048
- CODEN
- JESRAW
Conference
- Title
- 14. international conference on vacuum ultraviolet radiation physics
- Acronym
- VUV 14
- Dates
- 19-23 Jul 2004
- Place
- Cairns (Australia)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37039762
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COPPER COMPLEXES; ELECTRONIC STRUCTURE; EXCITATION; EXCITED STATES; FILMS; IONIZATION POTENTIAL; LIFETIME; MOLECULAR ORBITAL METHOD; ORGANIC SEMICONDUCTORS; PHOTOEMISSION; PHOTONS; PHTHALOCYANINES; RELAXATION; TIME RESOLUTION
- Descriptors DEC
- BOSONS; CALCULATION METHODS; COMPLEXES; DYES; ELEMENTARY PARTICLES; EMISSION; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; HETEROCYCLIC COMPOUNDS; MASSLESS PARTICLES; MATERIALS; ORGANIC COMPOUNDS; RESOLUTION; SECONDARY EMISSION; SEMICONDUCTOR MATERIALS; TIMING PROPERTIES; TRANSITION ELEMENT COMPLEXES
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.