Dresden 2014 – wissenschaftliches Programm
DS 35: Poster I: Application of thin films; Focus session: Sensoric micro and nano-systems; Focus Session: Sustainable photovoltaics with earth abundant materials; Graphen (joint session with TT; MA; HL; DY; O); Ion and electron beam induced processes; Layer properties: electrical, optical, and mechanical properties; Magnetic/organic interfaces, spins in organics and molecular magnetism; Micro- and nanopatterning (jointly with O); Organic electronics and photovoltaics (jointly with CPP, HL, O); Thermoelectric materials
DS 35.44: Poster
Mittwoch, 2. April 2014, 17:00–20:00, P1
Embedded Au nanoparticles in ZrO2 thin films for optical and electronical applications — •Sarah Seidel1, Alex Sabelfeld2, Tina Nestler1, Ronald Otto1, Johannes Heitmann1, and Yvonne Joseph2 — 1TU Bergakademie Freiberg, Institut für Angewandte Physik, Leipziger Str. 23, 09599,Freiberg,Germany — 2TU Bergakademie Freiberg, Institut für Elektronik- und Sensormaterialien, Gustav-Zeuner-Str. 3, 09599 Freiberg, Germany
The Au-nanoparticle (NP) was deposited via layer by layer self-assembly. The Au-nanoparticles are stabilized with dodecylamine and dissolved in toluene and have an average diameter of 4.5 nm. On the substrates an amin-terminated surface was prepared using (3-aminopropyl-)-triethoxysilan. We use the spin-coating technique for precipitation of the Au-NP. For the up-conversion a ZrO2 sol gel was doped with Er3+ und thin films were prepared using spin coating technique. We ascertained an optimum in the PL-signal for the 4I13/2-> 4I15/2 transition in Er3+ at 1536 nm with a doping concentration of 0.1 mol% Er3+ and 800°C annealing temperature. On top of the ZrO2 film we deposited a multilayer of Au-NP and analyzed the effect on the PL signal. For the nanofloating memory devices we deposited the Au-NC on a thin SiO2 tunnel oxide und use ZrO2 via electron beam evaporation as blocking oxid. The influence of tunnel oxide thickness on memory characteristics was investigated.