Suk, Jaekwon Lee, Jaeyong Kim, Joonkon Song, Jonghan 2024-01-20T07:33:17Z 2024-01-20T07:33:17Z 2021-09-05 2015-03 0374-4884 https://pubs.kist.re.kr/handle/201004/125718 Nitrogen-vacancy (NV) color centers in nanodiamond (ND) are fabricated through three steps, high-energy ion irradiation on ND, high-temperature (800 a"integral) annealing in vacuum and lowtemperature (500 a"integral) annealing in air. Raman measurements show that a surface-graphite layer is formed after annealing at 800 a"integral in vacuum while the graphite formed during ion irradiation is below the detection limit. Annealing at 500 a"integral in air is a crucial step in removing the graphite layer from ND that is ion-irradiated and 800 a"integral-annealed. A strong luminescence from NV color center is observed only after annealing at 500 a"integral in air. English KOREAN PHYSICAL SOC FLUORESCENT NANODIAMONDS DIAMOND Efficient fabrication method for nitrogen-vacancy color centers for a biomarker Article 10.3938/jkps.66.1009 1 JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.66, no.6, pp.1009 - 1012 JOURNAL OF THE KOREAN PHYSICAL SOCIETY 66 6 1009 1012 scie scopus kci 000352878000025 2-s2.0-84928242277 Physics, Multidisciplinary Physics Article FLUORESCENT NANODIAMONDS DIAMOND Nanodiamond Ion irradiation NV color center