Application of a pulsed laser to studies on organic thin films.

Pulsed Laser Porosification of Silicon Thin Films

We present a new and simple laser-based process to porosify thin film silicon using a pulsed laser. During deposition, we incorporate gas atoms or molecules into the Si thin film. Pulsed laser radiation of wavelength λ = 532 nm heats up thin film Si beyond its melting point. Upon heating, gas atoms or molecules form nm-sized thermally expanding gas bubbles in the silicon melt, until they explos...

Pulsed Laser Deposition of Hydroxyapatite Thin Films

Pulsed laser deposition of VO2 thin films

High quality vanadium dioxide ~VO2! thin films have been successfully deposited by pulsed laser deposition without postannealing on ~0001! and ~101̄0! sapphire substrates. X-ray diffraction reveals that the films are highly oriented with ~010! planes parallel to the surface of the substrate. VO2 thin films on ~0001! and ~101̄0! substrates show semiconductor to metal transistions with electrical r...

Pulsed laser deposition of organic thin ®lms

Excimer laser pulsed deposition was applied to the deposition of organic thin ®lms on sapphire and on glass. The thin ®lms were analyzed by X-ray diffraction (XRD), micro-Raman spectroscopy and ESCA. It was found that the properties of the ®lms were very close to that of the target materials. Strong photoluminescence was observed for both Alq3 and N,N 0-diphenyl-N,N 0-bis(3-methylphenyl)-(1,1 0...

Studies on the resistance switching characteristics of ZnO thin films grown by pulsed laser deposition

Prashant Kumar, Amit K Das , P. Misra and L M Kukreja Centre of Excellence in Lasers and Optoelectronic Sciences, CUSAT, Cochin 682022 Nanomaterials Lab, Laser Materials Processing Division, RRCAT, Indore 452013 * Email: [email protected] Resistance random access memory (RRAM ) devices based on the resistance switching of some of the metal oxide thin films has been widely investigated as next...