Effects of swift heavy ions irradiation on polypyrrole thin films

Autor:	Fouran Singh, R. G. Sonkawade, R. C. Ramola, D.K. Avasthi, Subhash Chandra, J. M. S. Rana, S. Annapoorni, Abdullah Alqudami
Rok vydání:	2008
Předmět:	Nuclear and High Energy Physics Radiation Materials science Scanning electron microscope Analytical chemistry Condensed Matter Physics Polypyrrole Fluence Amorphous solid chemistry.chemical_compound Crystallinity Surface conductivity chemistry General Materials Science Irradiation Thin film
Zdroj:	Radiation Effects and Defects in Solids. 163:139-147
ISSN:	1029-4953 1042-0150
Popis:	Conducting polypyrrole (PPY) polymer thin films, prepared by the electrochemical process, were irradiated with 50 MeV Li3+ and 90 MeV C6+ ions at different fluences, ranging from 1011 to 1014 ions cm−2. The structural and electrical properties of the swift heavy ions (SHI) irradiated films were analyzed using X-ray diffraction (XRD), Scanning electron microscope (SEM), and conductivity measurement methods. XRD analysis of SHI irradiated PPY films shows that the crystallinity of the PPY films increases with increasing fluences of lithium ions, but tends to become amorphous at higher fluence. Carbon ions irradiations lead to polymer destruction and simultaneous amorphization even at low fluence. The SEM studies of irradiated PPY films show systematic change in their surface morphologies. The surface was smoother at lower fluence but craters were observed at higher fluence. The surface conductivity of films increases with increasing fluence of lithium ions, which also turn to the virgin film conduct...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e9585e1a57d0b30a7ec1a46f2e75ef30 https://doi.org/10.1080/10420150701639985 Zobrazit plný text záznamu