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| 1 | Improved performance of UVC-LEDs by combination of high-temperature annealing and epitaxially laterally overgrown AlN/sapphire显示文摘We report on the performance of AlGaN-based deep ultraviolet light-emitting diodes(UV-LEDs)emitting at 265 nm grown on stripe-patterned high-temperature annealed(HTA)epitaxially laterally overgrown(ELO)aluminium nitride(AIN)/sapphire templates.For this purpose,the structural and electro-optical properties of ultraviolet-c light-emitting diodes(UVC-LEDs)on as-grown and on HTA planar AlN/sapphire as well as ELO AlN/sapphire with and without HTA are investigated and compared.Cathodoluminescence measurements reveal dark spot densities of 3.5×10^9 cm^-2,1.1×10^9 cm^-2,1.4×10^9 cm^-2,and 0.9×10^9 cm^-2 in multiple quantum well samples on as-grown planar AIN/sapphire,HTA planar AlN/sapphire,ELO AlN/sapphire,and HTA ELO AlN/sapphire,respectively,and are consistent with the threading dislocation densities determined by transmission electron microscopy(TEM)and high-resolution X-ray diffraction rocking curve.The UVC-LED performance improves with the reduction of the threading dislocation densities(TDDs).The output powers(measured on-wafer in cw operation at 20 mA)of the UV-LEDs emitting at 265 nm were 0.03 mW(planar AlN/sapphire),0.8 mW(planar HTA AlN/sapphire),0.9 mW(ELO AlN/sapphire),and 1.1 mW(HTA ELO AlN/sapphire),respectively.Furthermore,Monte Carlo ray-tracing simulations showed a 15%increase in light-extraction efficiency due to the voids formed in the ELO process.These results demonstrate that HTA ELO AlN/sapphire templates provide a viable approach to increase the efficiency of UV-LEDs,improving both the internal quantum efficiency and the light-extraction efficiency. | NORMAN SUSILO EVIATHAR ZIFFER SYLVIA HAGEDORN LEONARDO CANCELLARA CARSTEN NETZEL NEYSHA LOBO PLOCH SHAOJUN WU JENS RASS SEBASTIAN WALDE LUCA SULMONI MARTIN GUTTMANN TIM WERNICKE MARTIN ALBRECHT MARKUS WEYERS MICHAEL KNEISSL | 2020 | Photonics Research2020，8，4： | 4 |
| 2 | Randomized controlled trial of maintaining quality of life during radiotherapy for advanced cancer显示文摘 | Matthew M. Clark Teresa A. Rummans Pamela J. Atherton Andrea L. Cheville Mary E. Johnson Marlene H. Frost Janis J. Miller Jeff A. Sloan Karen M. Graszer Jean G. Haas Jean M. Hanson Yolanda I. Garces Katherine M. Piderman Maria I. Lapid Pamela J. Netzel Ja | 2012 | Cancer2012，，4： | 1 |
| 3 | Seal Technology, A Control for Industrial Pollution 显示文摘 | Netzel J P | 1990 | Lubrication Engineering1990，，8： | 1 |
| 4 | Design and application of non- contacting gas lubricated seals for slow speed services 显示文摘 | Pecht G G Netzel J P | 1999 | Lubrication Engineering1999，55，7： | 1 |
| 5 | Chloride and bromide complexes of Nickel(11) in aqueous solution显示文摘 | Netzel D A Droll H A | 1963 | Inorganic Chemistry1963，2，2： | 1 |
| 6 | Sources of antioxidantactivity in Australian native fruits identification and quan-tification of anthocyanins显示文摘 | Netzel M Netzel G Tian Q | 2006 | Agric Food Chem2006，54，： | 1 |
| 7 | Impact of light polarization on photoluminescence intensity and quantum efficiency in AlGaN and AlInGaN layers 显示文摘 | NETZEL C KNAUER A WEYERS M | 2012 | Appl Phys Lett2012，101，24： | 1 |
| 8 | Cyanidin 3-glucoside improves diet-induced metabolic syndrome in rats显示文摘 | Maharshi Bhaswant Kent Fanning Michael Netzel | 2015 | Pharmacological Research2015，102，： | 1 |
| 9 | Cancer cellantiproliferation activity and metabolism of black carrotanthocyanins显示文摘 | Netzel M Netzel G Kammerer D R | 2007 | Innovative Food Science and EmergingTechnologies2007，8，3： | 1 |
| 10 | In vivo antioxidative capacity of a composite berry juice显示文摘 | NETZEL M STRASS G KAUL C | 2002 | Food Res Int2002，35，23： | 1 |
| 11 | Design and Application of Non-cont- acting Gas Lubricated Seals for Slow-Speed Service显示文摘 | Pecht G G Netzel J P | 1999 | Lubri- cation Engineering1999，55，7： | 1 |
| 12 | The effect of interface cooling in controlling surface disturbances in mechanical face seals显示文摘 | James P Netzel | 1982 | Wear1982，79，： | 1 |
| 13 | Design and application of non-contacting gas lubricated seals for slow-speed service 显示文摘 | PECHT G G NETZEL J P | 1999 | Lubr Eng1999，55，7： | 1 |
| 14 | Bioaetive anthocyanins detected in human urine afare ingestion of blackcurrant juice 显示文摘 | Netzel Michael Strass Gabriele Jaassen Marlies | 2001 | JOURNAL OF Environmental Pathology Toxicology and Oncology2001，20，2： | 1 |
| 15 | Gliadin Induces an Increase in Intestinal Permeability and Zonulin Release by Binding to the Chemokine Receptor CXCR3显示文摘 | Karen M. Lammers Ruliang Lu Julie Brownley Bao Lu Craig Gerard Karen Thomas Prasad Rallabhandi Terez Shea-Donohue Amir Tamiz Sefik Alkan Sarah Netzel–Arnett Toni Antalis Stefanie N. Vogel Alessio Fasano | 2008 | Gastroenterology2008，，1： | 1 |
| 16 | Design and application of non-contacting gas lubricated seals for slow speed services显示文摘 | PECHT G G NETZEL J P | | 0，，7： | 1 |
| 17 | Can space syntax help us in understanding the intraurban office rent pattern? Ac- cessibility and rents in downtown Stockholm 显示文摘 | ENSTROM R NETZELL O | 2008 | Real Estate Finan Econ2008，36，： | 1 |
| 18 | Bioavailability of anthocyanidin- 3-glucosides following consumption of red wine and red gape juice 显示文摘 | Frank T Netzel M Strass G | 2003 | Can J Physiol Pharmacol2003，81，5： | 1 |
| 19 | Anti-localiza- tion suppresses non-radiative recombination in GaInN/GaN quantum wells显示文摘 | Hangleiter A Netzel C Fuhrmann D | 2007 | Phil Mag2007，87，13： | 1 |
| 20 | Design and application of non-contacting gas lubricated seals for slow speed services 显示文摘 | Pecht G G Netzel J P | 1999 | Lubrication Engineering1999，55，7： | 1 |
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