Functionalization of cubic boron nitride films with rhodamine B and their fluorescent properties

Journal Article · Mon Aug 08 00:00:00 EDT 2011 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3619837· OSTI ID:22027708

Liu, W M; Zhang, H Y; Wang, P F ^[1]; Ye, Q; Yang, Y; He, B; Bello, I; Lee, S T; Zhang, W J ^[2]

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1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (China)
2. Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Sciences, City University of Hong Kong (Hong Kong)

Fluorophore-functionalized cubic boron nitride (cBN) films grown by chemical vapor deposition were achieved by immobilizing rhodamine B isothiocyanate onto their surfaces. To perform the immobilization, the cBN substrates were modified with amino groups by photochemical reaction between hydrogen-terminated cBN surfaces and allylamine. The surface analysis of hydrogen-terminated cBN films surfaces and after functionalization with x-ray photoelectron spectroscopy verified that rhodamine B was indeed attached to the cBN surfaces with covalent bonding. The rhodamine B-functionalized cBN surfaces showed significant variation in fluorescent spectra and confocal imaging upon the treatment in acidic or basic solutions.

• OSTI ID: 22027708
• Journal Information: Applied Physics Letters, Vol. 99, Issue 6; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BORON NITRIDES
CHEMICAL VAPOR DEPOSITION
COVALENCE
CRYSTAL GROWTH
CUBIC LATTICES
EMISSION SPECTRA
FLUORESCENCE
HYDROGEN
ISOTHIOCYANATES
PHOTOCHEMICAL REACTIONS
SEMICONDUCTOR MATERIALS
SUBSTRATES
SURFACE TREATMENTS
SURFACES
THIN FILMS
X-RAY PHOTOELECTRON SPECTROSCOPY