Evidence map›Paper›PMID 41893230›Full record

ArticleNanomaterials (Basel, Switzerland)2026

Size-Dependent Emission Enhancement in Deep-Ultraviolet AlGaN Microrods.

Xu Sun, Ziwen Yan, Tong Xu, Jiajun Zhu, Zili Xie, Xiangqian Xiu, Dunjun Chen, Bin Liu, Yi Shi, Rong Zhang and 2 more

Abstract read

In one paragraph

Article in Nanomaterials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Xu SunJiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, State Key Laboratory of Spintronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.

Ziwen YanJiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, State Key Laboratory of Spintronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.

Tong XuJiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, State Key Laboratory of Spintronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.

Jiajun ZhuJiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, State Key Laboratory of Spintronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.

Zili XieJiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, State Key Laboratory of Spintronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.

Xiangqian XiuJiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, State Key Laboratory of Spintronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.ORCID 0000-0002-6801-2986

Dunjun ChenJiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, State Key Laboratory of Spintronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.

Bin LiuJiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, State Key Laboratory of Spintronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.ORCID 0000-0002-9495-6809

Yi ShiJiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, State Key Laboratory of Spintronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.

Rong ZhangJiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, State Key Laboratory of Spintronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.ORCID 0000-0003-0015-6331

Youdou ZhengJiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, State Key Laboratory of Spintronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.

Peng ChenJiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, State Key Laboratory of Spintronics, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China.ORCID 0000-0003-1350-2053

Funding

National Key Research and Development Program of China 2024YFE0204600

6 · The paper itself

Abstract

High-Al-content AlGaN microrods represent an effective platform for engineering deep-ultraviolet (DUV) emission. Here, we fabricated AlGaN microrods with varying diameters (2, 3, and 4 μm) via a top-down approach involving inductively coupled plasma dry etching followed by a KOH wet chemical modification. Their crystallographic facets and size-dependent optical properties were systematically investigated using scanning electron microscopy (SEM), cathodoluminescence (CL) spectroscopy, and CL mapping. We found that the KOH treatment selectively forms a-plane-dominated sidewalls on the high-Al-content portion of the microrods, whereas the etch pit bottoms stabilize as m-plane facets. Notably, the CL spectra show that the band-edge emission intensity of the 2 μm microrods is enhanced by a factor of 3.76 compared to the 4 μm structures. CL mapping further unveils the competitive dynamics between radiative recombination within the quantum wells and non-radiative recombination at surface states. These findings pinpoint 2 μm as the optimal diameter among the investigated range for maximizing spontaneous emission from these high-Al-content AlGaN microrods.

Indexed as

AlGaN microrodscathodoluminescencedeep-ultraviolet emissionsize effect

Identifiers

PMID41893230

DOI10.3390/nano16060355

PMCPMC13028936

What OpenQuestion holds

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LicenceCC BY

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.