Directional emission of quantum dot scintillators controlled by photonic crystals

被引：18

作者：

Liu, Bo ^{[1
]}

Wu, Qiang ^{[1
]}

Zhu, Zhichao ^{[1
]}

Cheng, Chuanwei ^{[1
]}

Gu, Mu ^{[1
]}

Xu, Jun ^{[1
]}

Chen, Hong ^{[1
]}

Liu, Jinliang ^{[2
,3
]}

Chen, Liang ^{[2
,3
]}

Zhang, Zhongbing ^{[2
,3
]}

Ouyang, Xiaoping ^{[2
,3
,4
]}

机构：

[1] Tongji Univ, Sch Phys Sci & Engn, Shanghai Key Lab Special Artificial Microstruct M, Shanghai 200092, Peoples R China

[2] Northwest Inst Nucl Technol, State Key Lab Intense Pulsed Radiat Simulat & Eff, Xian 710024, Shaanxi, Peoples R China

[3] Northwest Inst Nucl Technol, Radiat Detect Res Ctr, Xian 710024, Shaanxi, Peoples R China

[4] Xijing Univ, Shaanxi Engn Res Ctr Pulse Neutron Source & Its A, Xian 710123, Shaanxi, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2017年 / 111卷 / 08期

基金：

中国国家自然科学基金;

关键词：

HIGH EXTRACTION EFFICIENCY; ATOMIC LAYER DEPOSITION; LYSO SCINTILLATOR; LIGHT EXTRACTION; ENHANCEMENT; SURFACE;

D O I：

10.1063/1.4993816

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have demonstrated enhanced light emission from a CdSe/ZnS quantum dot scintillator film in the normal direction by photonic crystal structures. With the control of the photonic crystal structures, a two-fold enhancement was achieved for the wavelength-integrated emission spectra under the excitation of both ultra-violet and X-rays, which is beneficial to radiation detection applications. Furthermore, it is found that the optical properties such as the bandwidth and peak wavelength can be controlled by adjusting the thickness of a TiO2 conformal layer which was deposited on the surface of the photonic crystal slab formed from solidified resist. Published by AIP Publishing.

引用

页数：5

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