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Single Nitrogen Vacancy Centers in Chemical Vapor Deposited Diamond Nanocrystals

J. R. Rabeau, A. Stacey, A. Rabeau, S. Prawer, F. Jelezko, I. Mirza, and J. Wrachtrup, Nano Lett., 2007, 7 (11), pp 3433–3437

Nanodiamond crystals containing single color centers have been grown by chemical vapor deposition (CVD). The fluorescence from individual crystallites was directly correlated with crystallite size using a combined atomic force and scanning confocal fluorescence microscope. Under the conditions employed, the optimal size for single optically active nitrogen-vacancy (NV) center incorporation was measured to be 60−70 nm. The findings highlight a strong dependence of NV incorporation on crystal size, particularly with crystals less than 50 nm in size.

doi: 10.1021/nl0719271
arxiv:0706.2518

This work was funded by the Australian Research Council Discovery Projects scheme, the Department of Education Science and Training International Science Linkages program established under the Australian Government's innovation statement Backing Australia's Ability, and the EU (QAP, EQUIND, NEDQIT); DFG (SFB/TR 21), and Landesstiftung BW Foundation (Atomoptik).
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