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Issue 8, 2016
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Controllable synthesis, growth mechanism and luminescence property of a novel monodisperse microsphere with a hole for Zn8[(BO3)3O2(OH)3]:Eu3+

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Abstract

A novel monodisperse microsphere with a hole for Zn8[(BO3)3O2(OH)3]:Eu3+ phosphor was controllably prepared by a hydrothermal method and was characterized by XRD, EDS, FT-IR, TG-DTA, SEM, and HRTEM. The influence of hydrothermal reaction time, temperature and doping concentration on the formation of Zn8[(BO3)3O2(OH)3]:Eu3+ microstructures was investigated, and an ideal monodisperse microsphere of about 5 μm in diameter was obtained at 150 °C for 12 h with the Eu3+ doping concentration of 5%, which was self-assembled by nanoplates of about 150 nm in thickness. The crystal growth mechanism was proposed as a nucleation–dissolution–recrystallization process on the basis of time-dependent experiments. The influence of Eu3+ doping concentration and reaction time on the photoluminescence (PL) properties of Zn8[(BO3)3O2(OH)3]:Eu3+ phosphor and the corresponding Eu3+ preferential site occupancy have also been investigated. The results show that the Zn8[(BO3)3O2(OH)3]:Eu3+ microsphere with a hole product exhibits both higher intensity and the highest R/O ratio under 245 nm excitation, so it can be used as a potential red luminescent material.

Graphical abstract: Controllable synthesis, growth mechanism and luminescence property of a novel monodisperse microsphere with a hole for Zn8[(BO3)3O2(OH)3]:Eu3+

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Publication details

The article was received on 15 okt. 2015, accepted on 15 jan. 2016 and first published on 18 jan. 2016


Article type: Paper
DOI: 10.1039/C5CE02018B
CrystEngComm, 2016,18, 1311-1320

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    Controllable synthesis, growth mechanism and luminescence property of a novel monodisperse microsphere with a hole for Zn8[(BO3)3O2(OH)3]:Eu3+

    P. Liang and Z. Liu, CrystEngComm, 2016, 18, 1311
    DOI: 10.1039/C5CE02018B

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