In vacuo photocurrent measurements of plasma polymerized styrene films

Autor:	Masayuki Ieda, Mitchel Shen, S. Morita
Rok vydání:	1977
Předmět:	Photocurrent Materials science Photoconductivity education General Engineering Analytical chemistry Plasma Styrene chemistry.chemical_compound chemistry Electrode Polystyrene Electric current Short circuit health care economics and organizations
Zdroj:	Journal of Polymer Science: Polymer Physics Edition. 15:981-986
ISSN:	1542-9385 0098-1273
DOI:	10.1002/pol.1977.180150605
Popis:	Photoconductivity measurements were carried out on plasma polymerized styrene (PPS) in vacuo, in air, and in subsequently re-evacuated conditions. Samples with two gold electrodes (Au-PPS-Au) and gold-aluminum electrodes (Au-PPS-Al) were used. Positive short circuit photocurrents in the direction of illumination were observed in both types of specimens. In the case of Au-PPS-Au, photocurrent threshold was about 1.6 eV in vacuo for the virgin film, which is attributed to the energy of hole generation in bulk. Residual free radicals were assumed to be the acceptors in this mechanism. In the case of Au-PPS-Al, electron injection from aluminum was thought to be a more likely mechanism, with an estimated barrier height of approximately 2.6 eV.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eb607120e1cba556e607258dba61bb8c https://doi.org/10.1002/pol.1977.180150605 Zobrazit plný text záznamu Plný text