High Resolution X-Ray Photoelectron Spectroscopy and INDO/S-CI Study of the Core Electron Shakeup States of PMDA-ODA Polyimide
(1999) In Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films 17(5). p.2791-2799- Abstract
- Pyromellitic dianhydride-4,4-oxydianiline (PMDA–ODA) polyimide films have been studied using high resolution x-ray photoelectron spectroscopy and model semi-empirical INDO/S–CI calculations. Experimental and theoretical C 1s, N 1s, and O 1s spectra are presented, and found to be in good agreement with each other. Shakeup features of the spectra are identified, and their electronic nature analyzed theoretically. The highly nonstoichiometric ratio between the carbonyl and the ether O 1s main peaks is quantitatively explained by the calculations, where the nonstoichiometry is shown to be the result of stronger carbonyl than ether shakeup. Conformational effects on the shakeup spectra, due to torsion between the PMDA and ODA units, were... (More)
- Pyromellitic dianhydride-4,4-oxydianiline (PMDA–ODA) polyimide films have been studied using high resolution x-ray photoelectron spectroscopy and model semi-empirical INDO/S–CI calculations. Experimental and theoretical C 1s, N 1s, and O 1s spectra are presented, and found to be in good agreement with each other. Shakeup features of the spectra are identified, and their electronic nature analyzed theoretically. The highly nonstoichiometric ratio between the carbonyl and the ether O 1s main peaks is quantitatively explained by the calculations, where the nonstoichiometry is shown to be the result of stronger carbonyl than ether shakeup. Conformational effects on the shakeup spectra, due to torsion between the PMDA and ODA units, were investigated theoretically and found to be small for PMDA–ODA. (Less)
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https://lup.lub.lu.se/record/1457925
- author
- Nakayama, Y. ; Persson, Petter LU ; Lunell, S. ; Kowalczyk, S. P. ; Wannberg, B. and Gelius, U.
- publishing date
- 1999
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films
- volume
- 17
- issue
- 5
- pages
- 2791 - 2799
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- scopus:0033470606
- ISSN
- 1520-8559
- DOI
- 10.1116/1.581946
- language
- English
- LU publication?
- no
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
- id
- bc5e250a-f112-40a5-9f85-45621fc23f36 (old id 1457925)
- date added to LUP
- 2016-04-01 12:35:03
- date last changed
- 2022-01-27 07:06:15
@article{bc5e250a-f112-40a5-9f85-45621fc23f36, abstract = {{Pyromellitic dianhydride-4,4-oxydianiline (PMDA–ODA) polyimide films have been studied using high resolution x-ray photoelectron spectroscopy and model semi-empirical INDO/S–CI calculations. Experimental and theoretical C 1s, N 1s, and O 1s spectra are presented, and found to be in good agreement with each other. Shakeup features of the spectra are identified, and their electronic nature analyzed theoretically. The highly nonstoichiometric ratio between the carbonyl and the ether O 1s main peaks is quantitatively explained by the calculations, where the nonstoichiometry is shown to be the result of stronger carbonyl than ether shakeup. Conformational effects on the shakeup spectra, due to torsion between the PMDA and ODA units, were investigated theoretically and found to be small for PMDA–ODA.}}, author = {{Nakayama, Y. and Persson, Petter and Lunell, S. and Kowalczyk, S. P. and Wannberg, B. and Gelius, U.}}, issn = {{1520-8559}}, language = {{eng}}, number = {{5}}, pages = {{2791--2799}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films}}, title = {{High Resolution X-Ray Photoelectron Spectroscopy and INDO/S-CI Study of the Core Electron Shakeup States of PMDA-ODA Polyimide}}, url = {{http://dx.doi.org/10.1116/1.581946}}, doi = {{10.1116/1.581946}}, volume = {{17}}, year = {{1999}}, }