A novel ultra-thin-walled ZnO microtube cavity supporting multiple optical modes for bluish-violet photoluminescence, low-threshold ultraviolet lasing and microfluidic photodegradation

Qiang Wang; Yinzhou Yan; Feifei Qin; Chunxiang Xu; Xuelu Liu; Pingheng Tan; Nana Shi; Shuopeng Hu; Lin Li; Yong Zeng; Yan Zhao; Yijian Jiang

doi:10.1038/am.2017.187

A novel ultra-thin-walled ZnO microtube cavity supporting multiple optical modes for bluish-violet photoluminescence, low-threshold ultraviolet lasing and microfluidic photodegradation

Qiang Wang, Yinzhou Yan, Feifei Qin, Chunxiang Xu, Xuelu Liu, Pingheng Tan, Nana Shi, Shuopeng Hu, Lin Li, Yong Zeng, Yan Zhao, Yijian Jiang

Research output: Contribution to journal › Article › peer-review

Abstract

ZnO optical microcavities have shown great promise as a potential core component material/structure for ultraviolet lasers, light-emitting diodes and photonic sensors because of their outstanding optoelectronic properties. Here, we report a novel ultra-thin-walled ZnO (UTW-ZnO) microtube cavity with a wall thickness of ~750 nm, supporting multiple types of optical modes, including in-tube Fabry–Perot modes, in-wall Fabry–Perot modes and wave-guided whispering gallery modes (WG-WGMs). The free-exciton recombination rate and exciton–exciton collisions are promoted in the cavity. The intensities of near-band edge (ultravoilet (UV) light) and X-band (blue light) emission are therefore increased at least one order of magnitude in the temperature range of 0–500 °C. Meanwhile, the temperature-sensitive multicolor luminescence of the UTW-ZnO microtubes in the visible band from near-white to bluish-violet is demonstrated for the first time. Low-threshold UV lasing is also achieved in the UTW-ZnO microtube by WG-WGMs, where the excitation threshold is down to 5.50 μW. Furthermore, light harvesting in the microtube cavity is beneficial to boosting the ZnO catalytic performance for photodegradation of organic dyes. The UTW-ZnO microtube exhibits compatibility to microfluidic channels for recyclable on-chip degradation. The present work provides new opportunities to design novel tubular wide-bandgap semiconductor devices for a variety of optoelectronic applications in micro/nanophotonics.

Original language	English
Article number	e442(2017)
Journal	Npg Asia Materials
Volume	9
DOIs	https://doi.org/10.1038/am.2017.187
Publication status	Published - 27 Oct 2017

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10.1038/am.2017.187

LPRC: Laser Processing Research Centre Impact
Allegre, O. (PI), Crosby, D. (PI), Domingos, M. (PI), Francis, J. (PI), Gillen, D. (PI), Guo, W. (PI), Li, L. (PI), Mativenga, P. (PI), Rogers, B. D. (PI), Whitehead, D. (PI), Wilson, D. (PI), Zhong, S. (PI), Mirhosseini, N. (Researcher), Ouyang, J. (Researcher), Huang, Y. (Researcher), Wei, C. (Researcher), Cheng, D. (PGR student), Suryo Pratomo, E. (PGR student), Zhang, Z. (PGR student), Li, Z. (PGR student), Mo, H. (PGR student), Zhu, M. (PGR student), Li, Q. (PGR student), Liu, W. (PGR student), Wang, L. (PGR student), Guo, H. (PGR student), Heinemann, R. (PI) & Liu, Z. (PI)
1/04/00 → …
Project: Research

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Wang, Q., Yan, Y., Qin, F., Xu, C., Liu, X., Tan, P., Shi, N., Hu, S., Li, L., Zeng, Y., Zhao, Y., & Jiang, Y. (2017). A novel ultra-thin-walled ZnO microtube cavity supporting multiple optical modes for bluish-violet photoluminescence, low-threshold ultraviolet lasing and microfluidic photodegradation. Npg Asia Materials, 9, Article e442(2017). https://doi.org/10.1038/am.2017.187

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title = "A novel ultra-thin-walled ZnO microtube cavity supporting multiple optical modes for bluish-violet photoluminescence, low-threshold ultraviolet lasing and microfluidic photodegradation",

abstract = "ZnO optical microcavities have shown great promise as a potential core component material/structure for ultraviolet lasers, light-emitting diodes and photonic sensors because of their outstanding optoelectronic properties. Here, we report a novel ultra-thin-walled ZnO (UTW-ZnO) microtube cavity with a wall thickness of ~750 nm, supporting multiple types of optical modes, including in-tube Fabry–Perot modes, in-wall Fabry–Perot modes and wave-guided whispering gallery modes (WG-WGMs). The free-exciton recombination rate and exciton–exciton collisions are promoted in the cavity. The intensities of near-band edge (ultravoilet (UV) light) and X-band (blue light) emission are therefore increased at least one order of magnitude in the temperature range of 0–500 °C. Meanwhile, the temperature-sensitive multicolor luminescence of the UTW-ZnO microtubes in the visible band from near-white to bluish-violet is demonstrated for the first time. Low-threshold UV lasing is also achieved in the UTW-ZnO microtube by WG-WGMs, where the excitation threshold is down to 5.50 μW. Furthermore, light harvesting in the microtube cavity is beneficial to boosting the ZnO catalytic performance for photodegradation of organic dyes. The UTW-ZnO microtube exhibits compatibility to microfluidic channels for recyclable on-chip degradation. The present work provides new opportunities to design novel tubular wide-bandgap semiconductor devices for a variety of optoelectronic applications in micro/nanophotonics.",

author = "Qiang Wang and Yinzhou Yan and Feifei Qin and Chunxiang Xu and Xuelu Liu and Pingheng Tan and Nana Shi and Shuopeng Hu and Lin Li and Yong Zeng and Yan Zhao and Yijian Jiang",

year = "2017",

month = oct,

day = "27",

doi = "10.1038/am.2017.187",

language = "English",

volume = "9",

journal = "Npg Asia Materials",

issn = "1884-4049",

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T1 - A novel ultra-thin-walled ZnO microtube cavity supporting multiple optical modes for bluish-violet photoluminescence, low-threshold ultraviolet lasing and microfluidic photodegradation

AU - Wang, Qiang

AU - Yan, Yinzhou

AU - Qin, Feifei

AU - Xu, Chunxiang

AU - Liu, Xuelu

AU - Tan, Pingheng

AU - Shi, Nana

AU - Hu, Shuopeng

AU - Li, Lin

AU - Zeng, Yong

AU - Zhao, Yan

AU - Jiang, Yijian

PY - 2017/10/27

Y1 - 2017/10/27

N2 - ZnO optical microcavities have shown great promise as a potential core component material/structure for ultraviolet lasers, light-emitting diodes and photonic sensors because of their outstanding optoelectronic properties. Here, we report a novel ultra-thin-walled ZnO (UTW-ZnO) microtube cavity with a wall thickness of ~750 nm, supporting multiple types of optical modes, including in-tube Fabry–Perot modes, in-wall Fabry–Perot modes and wave-guided whispering gallery modes (WG-WGMs). The free-exciton recombination rate and exciton–exciton collisions are promoted in the cavity. The intensities of near-band edge (ultravoilet (UV) light) and X-band (blue light) emission are therefore increased at least one order of magnitude in the temperature range of 0–500 °C. Meanwhile, the temperature-sensitive multicolor luminescence of the UTW-ZnO microtubes in the visible band from near-white to bluish-violet is demonstrated for the first time. Low-threshold UV lasing is also achieved in the UTW-ZnO microtube by WG-WGMs, where the excitation threshold is down to 5.50 μW. Furthermore, light harvesting in the microtube cavity is beneficial to boosting the ZnO catalytic performance for photodegradation of organic dyes. The UTW-ZnO microtube exhibits compatibility to microfluidic channels for recyclable on-chip degradation. The present work provides new opportunities to design novel tubular wide-bandgap semiconductor devices for a variety of optoelectronic applications in micro/nanophotonics.

AB - ZnO optical microcavities have shown great promise as a potential core component material/structure for ultraviolet lasers, light-emitting diodes and photonic sensors because of their outstanding optoelectronic properties. Here, we report a novel ultra-thin-walled ZnO (UTW-ZnO) microtube cavity with a wall thickness of ~750 nm, supporting multiple types of optical modes, including in-tube Fabry–Perot modes, in-wall Fabry–Perot modes and wave-guided whispering gallery modes (WG-WGMs). The free-exciton recombination rate and exciton–exciton collisions are promoted in the cavity. The intensities of near-band edge (ultravoilet (UV) light) and X-band (blue light) emission are therefore increased at least one order of magnitude in the temperature range of 0–500 °C. Meanwhile, the temperature-sensitive multicolor luminescence of the UTW-ZnO microtubes in the visible band from near-white to bluish-violet is demonstrated for the first time. Low-threshold UV lasing is also achieved in the UTW-ZnO microtube by WG-WGMs, where the excitation threshold is down to 5.50 μW. Furthermore, light harvesting in the microtube cavity is beneficial to boosting the ZnO catalytic performance for photodegradation of organic dyes. The UTW-ZnO microtube exhibits compatibility to microfluidic channels for recyclable on-chip degradation. The present work provides new opportunities to design novel tubular wide-bandgap semiconductor devices for a variety of optoelectronic applications in micro/nanophotonics.

U2 - 10.1038/am.2017.187

DO - 10.1038/am.2017.187

M3 - Article

SN - 1884-4049

VL - 9

JO - Npg Asia Materials

JF - Npg Asia Materials

M1 - e442(2017)

ER -

A novel ultra-thin-walled ZnO microtube cavity supporting multiple optical modes for bluish-violet photoluminescence, low-threshold ultraviolet lasing and microfluidic photodegradation

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