Preprint Communication Version 1 Preserved in Portico This version is not peer-reviewed

The Transformation from (111) to (100): A Routine to Large-Scale Epitaxial Diamond

Version 1 : Received: 29 November 2020 / Approved: 30 November 2020 / Online: 30 November 2020 (16:52:07 CET)

How to cite: Wang, Y.; Wang, W.; Yang, S.; Zhu, J. The Transformation from (111) to (100): A Routine to Large-Scale Epitaxial Diamond. Preprints 2020, 2020110746 (doi: 10.20944/preprints202011.0746.v1). Wang, Y.; Wang, W.; Yang, S.; Zhu, J. The Transformation from (111) to (100): A Routine to Large-Scale Epitaxial Diamond. Preprints 2020, 2020110746 (doi: 10.20944/preprints202011.0746.v1).

Abstract

Diamond is a material with excellent performances which attracts the attention from researchers for decades. Pt (111), owing to its catalytic activity on diamond synthesis, is regarded to be a candidate for diamond hetero-epitaxity, which can enhance nucleation density. Molten surface at diamond growth temperature can also improve mobility and aggregation capability of primitive nuclei. Generally, (100)-oriented is welcomed for the achivement of high quality and large size diamond, since the formation of defects and twins are prevented. First-principle calculations and experimental researches were carried out for the study of transformation of orientation. The transformation from {111} to {100}-oriented diamond has been observed on Pt (111) substrate, which can be promoted by the increase of carbon source concentration and substrate temperature. The process is energetic favorable, which may provides a way towards large-scale (100) diamond films.

Subject Areas

diamond film; Pt (111) substrate; orientation transformation; formation energy

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