Atomic layer deposition of high-k dielectrics on carbon nanoparticles

Autor: Lauri Aarik, Aleks Aidla, Jekaterina Kozlova, Jaan Aarik, Kaupo Kukli, Jun Lu, Lars Hultman, Anna-Liisa Peikolainen, Mihkel Koel, Hugo Mändar, Kaspar Roosalu, Aile Tamm, Raul Rammula
Rok vydání: 2013
Předmět:
Zdroj: Thin Solid Films. 538:16-20
ISSN: 0040-6090
DOI: 10.1016/j.tsf.2012.09.071
Popis: Carbon nanoparticles were synthesized from 5-methylresorcinol and formaldehyde via base catalysed polycondensation reaction and distributed over silicon oxide wafers and aluminium oxide thin films. These particles essentially possessed monocrystalline graphite structure. The particles were covered by hafnium oxide thin films in metal chloride based atomic layer deposition process carried out at 300 °C. Upon deposition of HfO2, thin crystalline metal oxide layer containing mostly cubic phase was formed. At the same time, deposition of the metal oxide caused reduction of the sizes of graphite particles and essential increase in the disorder in carbon.
Databáze: OpenAIRE