Lithuanian Journal of Physics article / Lietuvos fizikos žurnalo straipsnis

NANOCONE STRUCTURES WITH LIMITED INTERSPACE GROWN BY MOVPE
Jozef Novák^a, Peter Eliáš^a, Stanislav Hasenöhrl^a, Agáta Laurenčíková^a, Petra Urbancová^b, and Dušan Pudiš^b
^aInstitute of Electrical Engineering SAS, Dubravská 9, 841 04 Bratislava, Slovakia
^bDepartment of Physics, University of Žilina, Univerzitná 1, 010 08 Žilina, Slovakia
Email: jozef.novak@savba.sk

Received 10 June 2019; revised 16 September 2019; accepted 16 September 2019

Reduction and limitation of free spaces between the gallium phosphide nanocones was studied. A set of nanocone samples was grown by metal organic vapour phase epitaxy (MOVPE) in the temperature range between 610 and 690°C. Our results showed that by an appropriate combination of a high density of gold seeds and an optimized growth temperature it was possible to obtain a nanostructured surface with very limited free spaces between the nanocones. A combination of lateral and vertical growth rates regulated by the selection of growth temperature played a very important role in the nanocone hexagonal base enlargement, which helped to minimize spaces between the cones. The limitation of free space between the nanocones increased a probability of edge creation that is very helpful for the successful growth of 2D materials.

Keywords: nanocone, epitaxy, gold seed, shell layer

KŪGIŠKI TANKŪS NANODARINIAI, IŠAUGINTI METALORGANINĖS GARŲ FAZĖS EPITAKSIJOS BŪDU
Jozef Novák^a, Peter Eliáš^a, Stanislav Hasenöhrl^a, Agáta Laurenčíková^a, Petra Urbancová^b, Dušan Pudiš^b

^aSlovakijos mokslų akademijos Elektros inžinerijos institutas, Bratislava, Slovakija
^bŽilinos universiteto Fizikos fakultetas, Žilina, Slovakija

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