Integrated elliptical III-V nanopillar arrays on silicon for dual photodetection and light emission
Abstract
Next-generation on-chip photonic devices require compact, energy-efficient components integrating photodetection and light emission on silicon platforms. Achieving broadband photodetection combined with efficient emission in a single nanoscale device remains challenging. Here, we demonstrate elliptical nanopillar arrays monolithically integrated as III-V-on-Si templates, exhibiting broadband photoresponse across visible to near-infrared wavelengths, dynamic neuron-like graded responses under modulated light, and pronounced electroluminescence at around 865 nm under forward bias. The nanostructured elliptical geometry approach enhances optical absorption and carrier dynamics within an active area significantly smaller than commercial detectors, enabling responsivities up to 0.55 A/W at 830 nm in compact nanoarrays. This work advances the development of miniaturized active nanophotonic devices suitable for integrated sensing, emitting and communication circuits, and neuromorphic processing on silicon substrates.
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BibTeX
@misc{azevedo2026integrated,
title = {{Integrated elliptical III-V nanopillar arrays on silicon for dual photodetection and light emission}},
author = {João D. G. Azevedo and Rafael Ramos Uña and Ángela Barreda and Stuart Edwards and J. Iwan Davies and Jérôme Borme and Braulio Garcia-Cámara and Jana B. Nieder and Bruno Romeira},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.32744},
eprint = {2610.32744},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.32744},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Integrated elliptical III-V nanopillar arrays on silicon for dual photodetection and light emission
AU - João D. G. Azevedo
AU - Rafael Ramos Uña
AU - Ángela Barreda
AU - Stuart Edwards
AU - J. Iwan Davies
AU - Jérôme Borme
AU - Braulio Garcia-Cámara
AU - Jana B. Nieder
AU - Bruno Romeira
PY - 2026
DA - 2026/10/23
PB - arXiv
DO - 10.48550/arxiv.2610.32744
UR - https://arxiv.org/abs/2610.32744
AB - Next-generation on-chip photonic devices require compact, energy-efficient components integrating photodetection and light emission on silicon platforms. Achieving broadband photodetection combined with efficient emission in a single nanoscale device remains challenging. Here, we demonstrate elliptical nanopillar arrays monolithically integrated as III-V-on-Si templates, exhibiting broadband photoresponse across visible to near-infrared wavelengths, dynamic neuron-like graded responses under modulated light, and pronounced electroluminescence at around 865 nm under forward bias. The nanostructured elliptical geometry approach enhances optical absorption and carrier dynamics within an active area significantly smaller than commercial detectors, enabling responsivities up to 0.55 A/W at 830 nm in compact nanoarrays. This work advances the development of miniaturized active nanophotonic devices suitable for integrated sensing, emitting and communication circuits, and neuromorphic processing on silicon substrates.
ER -