Toward Performance and Applications of Large Area Optical Thermometry Based on the Luminescence of Germanium‐Vacancy Defects in Diamond Nanocrystals | Zendy

Miller Caius | Zendy; Puust Laurits | Zendy; Ekimov Evgeny | Zendy; Vlasov Igor | Zendy; Vanetsev Alexander | Zendy; Vinogradova Elena | Zendy; Orlovskii Yurii | Zendy; Treshchalov Aleksei | Zendy; Sildos Ilmo | Zendy

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Toward Performance and Applications of Large Area Optical Thermometry Based on the Luminescence of Germanium‐Vacancy Defects in Diamond Nanocrystals

Author(s) -

Miller Caius,

Puust Laurits,

Ekimov Evgeny,

Vlasov Igor,

Vanetsev Alexander,

Vinogradova Elena,

Orlovskii Yurii,

Treshchalov Aleksei,

Sildos Ilmo

Publication year - 2021

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.202000217

Subject(s) - materials science , luminescence , germanium , anatase , diamond , nanocrystal , vacancy defect , substrate (aquarium) , optoelectronics , nanotechnology , colloid , chemical engineering , silicon , crystallography , chemistry , composite material , photocatalysis , engineering , biochemistry , oceanography , geology , catalysis

Herein optical properties of aggregates of hydrophobic nanodiamonds (NDs) with germanium‐vacancy (GeV) defects distributed on substrates with different hydrophilicities (bare Si or TiO 2 (anatase) film on Si substrate) are investigated with an aim to achieve millimeter‐scale, nearly homogeneous spatial distribution of ND aggregates. ND aggregates are spread by drop casting of a water colloid. The luminescence spectra of GeV defects are studied in a wide temperature range (85–400 K). The possibility of optical thermometry operating in a wide temperature range also covering biotemperatures is demonstrated using a separate microaggregate of NDs on the anatase film.

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