NDLI: Luminescence photoswitching of Ho-doped Na0.5Bi2.5Nb2O9 ferroelectrics: the luminescence readout process

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Journal of Materials Chemistry C Vol - 5 Issue - 3

Journal of Materials Chemistry C Vol - 5 Issue - 2

Journal of Materials Chemistry C Vol -4

Journal of Materials Chemistry C Vol -3

Journal of Materials Chemistry C Vol -2

Journal of Materials Chemistry C Vol -1

Luminescence photoswitching of Ho-doped Na_0.5Bi_2.5Nb₂O₉ ferroelectrics: the luminescence readout process

Content Provider	Royal Society of Chemistry (RSC)
Author	Wang, Xusheng Zhang, Qiwei Liu, Jian Sun, Haiqin Hao, Xihong An, Shengli
Copyright Year	2017
Abstract	Luminescent switching materials upon photochromic reactions have potential applications in optical switching and high-density optical data storage in optoelectronic devices. To avoid interference and destruction of information in practical data storage applications, a nondestructive luminescence readout is essential. However, it is still unclear how to select the optimized excitation and emission bands to avoid the photochromic reaction during the “reading” process while maintaining high luminescence contrast and stability in inorganic photochromic materials. On the basis of the nonradiative energy transfer mechanism, Ho3+ ions were introduced into the Na0.5Bi2.5Nb2O9 host to obtain efficient luminescence switching due to their special excitation (451 nm) and emission (547 nm) characteristics. Under 407 nm irradiation (“writing”), the photochromic phenomenon can be effectively read out by measuring the changes in the luminescence emission intensity. The luminescence switching contrast increased up to 94%. Importantly, the excitation and emission energies did not significantly induce new photochromic reactions, causing less destruction to the material and the luminescence readout process. This outcome is superior to our previously reported results. Furthermore, the luminescence switching properties exhibit hardly any degradation after undergoing several cycles of the “writing”, “reading” and “erasing” processes, indicating excellent reversibility.
Starting Page	807
Ending Page	816
Page Count	10
File Format	HTM / HTML PDF
ISSN	20507526
Volume Number	5
Issue Number	4
Journal	Journal of Materials Chemistry C
DOI	10.1039/c6tc04422k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Photochromism Optical disc Optoelectronics Nondestructive testing Luminescence Emission intensity
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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