Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/15929
Title: Relation between synthesis conditions, dopant position and charge carriers in aluminium-doped ZnO nanoparticles
Authors: KELCHTERMANS, Anke 
ELEN, Ken 
SCHELLENS, Kevin 
CONINGS, Bert 
DAMM, Hanne 
BOYEN, Hans-Gerd 
D'HAEN, Jan 
ADRIAENSENS, Peter 
HARDY, An 
VAN BAEL, Marlies 
Issue Date: 2013
Source: RSC Advances, 3 (35), p. 15254-15262
Abstract: The ability to achieve an understanding of the correlations between chemical synthesis, doping mechanism and properties of aluminium-doped zinc oxide (ZnO:Al) nanocrystals is of great importance to evaluate the potential of ZnO:Al nanocrystals as optimal building blocks for solution deposited transparent conductive oxide layers. Two series of Al-doped ZnO nanoparticles were synthesized by solution-based methods under different conditions yielding phase-pure wurtzite ZnO:Al nanocrystals with different morphologies (quasispheres and rods). In both series 80% of the input Al is incorporated in the ZnO:Al crystals. Furthermore, 27Al nuclear magnetic resonance demonstrated a 5 times higher tetrahedral Al content for the quasispheres, which can be directly linked to the presence of free charge carriers, as showed with Fourier transform infrared spectroscopy. XPS data show the Zn2+ and O22 chemical state of the constituting ions. It is demonstrated that an efficient Al doping, creating charge carriers in the ZnO, can be achieved by controlling the chemical synthesis parameters of the nanoparticles
Document URI: http://hdl.handle.net/1942/15929
e-ISSN: 2046-2069
DOI: 10.1039/C3RA41847B
ISI #: 000323132100049
Category: A1
Type: Journal Contribution
Validations: ecoom 2014
Appears in Collections:Research publications

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