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| 001 | 890300 | ||
| 005 | 20220930130305.0 | ||
| 024 | 7 | _ | |2 doi |a 10.1063/5.0038070 |
| 024 | 7 | _ | |2 ISSN |a 0003-6951 |
| 024 | 7 | _ | |2 ISSN |a 1077-3118 |
| 024 | 7 | _ | |2 ISSN |a 1520-8842 |
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| 037 | _ | _ | |a FZJ-2021-00880 |
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| 100 | 1 | _ | |0 P:(DE-Juel1)128613 |a Mikulics, M. |b 0 |e Corresponding author |
| 245 | _ | _ | |a Conditioning nano-LEDs in arrays by laser-micro-annealing: The key to their performance improvement |
| 260 | _ | _ | |a Melville, NY |b American Inst. of Physics |c 2021 |
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| 520 | _ | _ | |a A local so-called laser-micro-annealing (LMA) conditioning technology, which is suitable for the fabrication of a large range of hybrid nano-optoelectronic devices, was applied to III-nitride-based nano-light emitting diodes (LEDs). The LEDs with a diameter of ∼100 nm were fabricated in large area arrays and designed for hybrid optoelectronic applications. The LMA process was developed for the precise local conditioning of LED nano-structures. Photoluminescence measurements reveal the enhancement of nano-LED properties, which is in very good agreement with a simple model introduced based on the reduction of the defect layer depth by the LMA process. The experimental data confirm the reduction of the defect layer depth from ∼17 nm to ∼5 nm determined. In consequence, an increase in work currents up to 40 nA at 5 V bias after the LMA procedure as well as high electroluminescence (EL) and output optical power up to 150 nW in the ∼440–445 nm emission wavelength range corresponding to ∼75% wall-plug efficiency were achieved. Additionally, the LEDs' electroluminescence intensities reach the desired values by conditioning the contact/annealed regions of individual LEDs accordingly. Furthermore, the LMA process affects the long-term stability of the electroluminescence (EL) intensity of single nano-LED devices. A study of the EL during 5000 h in the continuous wave operation testing mode revealed a moderate ∼15% decrease in the intensity in comparison to ∼50% for their non-LMA counterparts. Finally, Raman measurements indicate that the “work” temperature for nano-LED conditioned structures decreases. |
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| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Kordoš, P. |b 1 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Gregušová, D. |b 2 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Sofer, Z. |b 3 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Winden, A. |b 4 |
| 700 | 1 | _ | |0 P:(DE-Juel1)128856 |a Trellenkamp, Stefan |b 5 |
| 700 | 1 | _ | |0 P:(DE-Juel1)128616 |a Moers, Jürgen |b 6 |
| 700 | 1 | _ | |0 P:(DE-Juel1)130824 |a Mayer, Joachim |b 7 |u fzj |
| 700 | 1 | _ | |0 P:(DE-Juel1)125593 |a Hardtdegen, H. |b 8 |e Corresponding author |
| 773 | _ | _ | |0 PERI:(DE-600)1469436-0 |a 10.1063/5.0038070 |g Vol. 118, no. 4, p. 043101 - |n 4 |p 043101 - |t Applied physics letters |v 118 |x 1077-3118 |y 2021 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/890300/files/5.0038070.pdf |y OpenAccess |
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