Influence of molecular adsorbates on the structure of electrodeposited nanocrystalline ZnO

✍ Scribed by Loewenstein, T. ;Sann, J. ;Neumann, C. ;Meyer, B. K. ;Schlettwein, D.

• Book ID: 105364918
• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 789 KB
• Volume: 205
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200779439

✦ Synopsis

Abstract

Pure ZnO or ZnO~EosinY~ with adsorbed EosinY molecules was deposited electrochemically from aqueous zinc salt solutions on (0001)GaN and (0001)ZnO. X‐ray diffraction revealed the deposition of crystalline ZnO in all cases, with almost perfect orientation in the c ‐direction. Shifts in the peak positions observed for ZnO~EosinY~ were explained by a lattice expansion by 3.6% in the c ‐direction caused by the strong influence of the EosinY molecules adsorbed during the growth of ZnO. Scanning electron microscopy (SEM) was used to elucidate the film morphology. Photoluminescence measurements served to determine changes in the electronic structure of these nanocrystalline materials. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)