Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Labyrinthine and dendritic patterns in polyethylene oxide films grown by pulsed laser deposition
Δημιουργός/Συγγραφέας:	Karoutsos V. Gontad F. Kantarelis S. Lorusso A. Perrone A. [EL] Βάϊνος, Νικόλαος  A.[EN] Vainos, Nikolaos A.
Εκδότης:	Springer Verlag
Ημερομηνία:	2017
Γλώσσα:	Αγγλικά
ISSN:	0947-8396
DOI:	10.1007/s00339-017-0905-6
Περίληψη:	Polyethylene oxide (PEO) films were grown by pulsed laser deposition using two different lasers: ArF (193 nm, 5 ns) and Nd:YAG (355 nm, 7 ns). Even though very similar experimental conditions have been applied to ablate identical targets, different surface morphologies and structures have been observed. Depending on laser fluence, labyrinthine patterns in PEO films have been formed when using 355 nm laser pulses at fluence values in the range 280–1000 mJ/cm2. The same material ablated by 193 nm excimer laser pulses at 200 mJ/cm2 fluence grows in dendritic morphologies. Both target and laser deposited materials have been thoroughly characterized using infrared spectroscopic, microscopic and X-ray analytical methods. Infrared spectroscopy demonstrated the close similarity of molecular chains for both target and film materials. X-ray diffraction analysis indicates polymer chain scissoring by ultraviolet irradiation, a fact also confirmed by size exclusion chromatography.
Τίτλος πηγής δημοσίευσης:	Applied Physics A: Materials Science and Processing
Τόμος/Κεφάλαιο:	123
Τεύχος:	4
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry [EL] Φασματοσκοπία[EN] Spectroscopy
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Κάτοχος πνευματικών δικαιωμάτων:	© 2017, Springer-Verlag Berlin Heidelberg.
Σημειώσεις:	European Commission, EC; European Social Fund, ESF This research has been co-financed by the European Union (European Social Fund—ESF) and Greek national funds through the Operational Program “Education and Lifelong Learning” of the National Strategic Reference Framework (NSRF)—Research Funding Program: Thales, investing in knowledge society through the European Social Fund. Support by the Italian National Institute of Nuclear Physics (INFN) is acknowledged. Networking support of COST Action MP1205 is acknowledged.
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο