On contacts to III-nitride deep-UV emitters

2018 ◽  
Author(s):  
Biplab Sarkar ◽  
Pramod Reddy ◽  
Andrew Klump ◽  
Robert Rounds ◽  
Mathew R. Breckenridge ◽  
...  
Keyword(s):  
Deep Uv ◽  
Uv Emitters

AlGaN layer structures for deep UV emitters on laterally overgrown AlN/sapphire templates

2012 ◽  
Vol 210 (3) ◽  
pp. 451-454 ◽  
Author(s):  
A. Knauer ◽  
V. Kueller ◽  
U. Zeimer ◽  
M. Weyers ◽  
C. Reich ◽  
...  
Keyword(s):  
Algan Layer ◽  
Layer Structures ◽  
Deep Uv ◽  
Uv Emitters

GaN to AlN: Materials for deep-UV emitters

2005 ◽  
Author(s):  
A.A. Allerman ◽  
A.J. Fischer ◽  
M.H. Crawford ◽  
S.R. Lee ◽  
K.H.A Bogart ◽  
...  
Keyword(s):  
Deep Uv ◽  
Uv Emitters

scholarly journals Mg-doped Al-rich AlGaN alloys for deep UV emitters

2004 ◽  
Author(s):  
Mim L. Nakarmi ◽  
Kyoung Hoon Kim ◽  
Kai Zhu ◽  
Jing Yu Lin ◽  
Hong Xing Jiang
Keyword(s):  
Deep Uv ◽  
Uv Emitters ◽  
Mg Doped

scholarly journals Upconverted excitation energy lock-in for deep-ultraviolet enhancement

2020 ◽  
Author(s):  
Qianqian Su ◽  
Han-Lin Wei ◽  
Shuai Wang ◽  
Chaohao Chen ◽  
Guan Ming ◽  
...  
Keyword(s):  
Near Infrared ◽  
Heterogeneous Architecture ◽  
Uv Emission ◽  
Deep Ultraviolet ◽  
Deep Uv ◽  
Daunting Challenge ◽  
Lock In ◽  
Uv Emitters ◽  
Insight Into ◽  
Upconversion Process

Abstract Photon upconversion of near-infrared (NIR) irradiation into deep-ultraviolet (UV) emission offers many exciting opportunities for drug release in deep tissues, photodynamic therapy, solid-state lasing, energy storage, and photocatalysis. However, NIR-to-deep-UV upconversion remains a daunting challenge due to low quantum efficiency. Here, we report an unusual six-photon upconversion process in Gd3+/Tm3+-codoped nanoparticles comprising a heterogeneous, core-multishell nanostructure. This multishell design efficiently suppresses energy consumption induced by interior energy traps, maximizes cascade sensitizations of the NIR excitation, and promotes upconverted deep-UV emission from high-lying excited states. We released the intense six-photon-upconverted UV emissions at 253 nm under 808-nm excitation. This work provides new insight into mechanistic understanding of the upconversion process within the heterogeneous architecture, while offering exciting opportunities for developing nanoscale deep-UV emitters that can be remotely controlled in deep tissues upon NIR illumination.

Development of Silicon Wafer Packaging Technology for Deep UV LED

2020 ◽  
Vol 140 (7) ◽  
pp. 152-157
Author(s):  
Hirofumi Chiba ◽  
Yukio Suzuki ◽  
Yoshiaki Yasuda ◽  
Mitsuyasu Kumagai ◽  
Takaaki Koyama ◽  
...  
Keyword(s):  
Silicon Wafer ◽  
Packaging Technology ◽  
Uv Led ◽  
Deep Uv

PULSED UV IRRADIATION USING DEEP UV-LED FOR INACTIVATION OF ESCHERICHIA COLI

2019 ◽  
Vol 75 (7) ◽  
pp. III_91-III_96
Author(s):  
Tomoyasu SADO ◽  
Kumiko OGUMA ◽  
Takashi HASHIMOTO ◽  
Shinobu KAZAMA ◽  
Satoshi TAKIZAWA
Keyword(s):  
Escherichia Coli ◽  
Uv Irradiation ◽  
Uv Led ◽  
Deep Uv
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