Paulo André
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View article: Dual Spectral Matching in Perovskite Solar Cells via Upconverting plus Downshifting Nanoparticles
Dual Spectral Matching in Perovskite Solar Cells via Upconverting plus Downshifting Nanoparticles Open
Maximizing solar cell efficiency is a critical step toward revolutionizing photovoltaic technologies and harnessing the full potential of light for energy conversion. This study investigates the incorporation of NaGdF4:Yb3+,Tm3+@NaGdF4:Eu3…
View article: Photonic-digital hybrid artificial intelligence hardware architectures: at the interface of the real and virtual worlds
Photonic-digital hybrid artificial intelligence hardware architectures: at the interface of the real and virtual worlds Open
Artificial intelligence (AI) technology has become an undeniable presence in society, as seen in the growing use of chatbots (e.g. ChatGPT) and recent Nobel Prize awards. However, the challenge of developing AI hardware architectures that …
View article: NIKA2 Cosmological Legacy Survey
NIKA2 Cosmological Legacy Survey Open
Clusters of galaxies, formed in the latest stages of structure formation, are unique cosmological probes. With the advent of large CMB surveys like those from the Planck satellite, the ACT and SPT telescopes, we now have access to a large …
View article: Characterizing the interplay between Galactic star formation and ionization feedback with PRIMA
Characterizing the interplay between Galactic star formation and ionization feedback with PRIMA Open
Recent results from the James Webb Space Telescope show that nearby spiral galaxies are dominated by the presence of H I and H II bubbles that strongly shape their surrounding medium. These bubbles result from the feedback of high-mass sta…
View article: False Promises in Medical Imaging AI? Assessing Validity of Outperformance Claims
False Promises in Medical Imaging AI? Assessing Validity of Outperformance Claims Open
Performance comparisons are fundamental in medical imaging Artificial Intelligence (AI) research, often driving claims of superiority based on relative improvements in common performance metrics. However, such claims frequently rely solely…
View article: An asymmetric fission island driven by shell effects in light fragments
An asymmetric fission island driven by shell effects in light fragments Open
Nuclear fission leads to the splitting of a nucleus into two fragments 1,2 . Studying the distribution of the masses and charges of the fragments is essential for establishing the fission mechanisms and refining the theoretical models 3,4 …
View article: A panchromatic view of N2CLS GOODS-N: The evolution of the dust cosmic density since <i>z</i> ∼ 7
A panchromatic view of N2CLS GOODS-N: The evolution of the dust cosmic density since <i>z</i> ∼ 7 Open
To understand early star formation, it is essential to determine the dust mass budget of high-redshift galaxies. Sub-millimeter rest-frame emission, dominated by cold dust, is an unbiased tracer of dust mass. The New IRAM KID Arrays 2 (NIK…
View article: A panchromatic view of N2CLS GOODS-N: the evolution of the dust cosmic density since z~7
A panchromatic view of N2CLS GOODS-N: the evolution of the dust cosmic density since z~7 Open
(abridged) To understand early star formation, it is essential to determine the dust mass budget of high-redshift galaxies. Sub-millimeter rest-frame emission, dominated by cold dust, is an unbiased tracer of dust mass. The NIKA2 camera co…
View article: Enhancing the efficiency of luminescent solar concentrators via soft colloidal lithography negative templating
Enhancing the efficiency of luminescent solar concentrators via soft colloidal lithography negative templating Open
Funding Information: This work was supported by the projects PID2020-116615RA-I00 funded by MICIU/AEI/10.13039/501100011033, EMERGIA grant with reference EMC21_00008 and project C-ING-208-UGR23 funded by Consejería de Universidad, Investig…
View article: Integrated Photonic Neural Networks for Equalizing Optical Communication Signals: A Review
Integrated Photonic Neural Networks for Equalizing Optical Communication Signals: A Review Open
The demand for high-capacity communication systems has grown exponentially in recent decades, constituting a technological field in constant change. Data transmission at high rates, reaching tens of Gb/s, and over distances that can reach …
View article: Transparent nature-based luminescent solar concentrator with NIR emission and integrated thermal sensing
Transparent nature-based luminescent solar concentrator with NIR emission and integrated thermal sensing Open
LSCs enable large-area energy-generating windows with thermometric abilities. A scalable bacteriochlorophyll prototype offers sustainable transparency and efficiency.
View article: Toward the first cosmological results of the NIKA2 Sunyaev-Zeldovich Large Program: The SZ-Mass scaling relation
Toward the first cosmological results of the NIKA2 Sunyaev-Zeldovich Large Program: The SZ-Mass scaling relation Open
In Sunyaev-Zeldovich (SZ) cluster cosmology, two tools are needed to be able to exploit data from large scale surveys in the millimeter-wave domain. An accurate description of the IntraCluster Medium (ICM) pressure profile is needed along …
View article: Optical payload design for downlink quantum key distribution and keyless communication using CubeSats
Optical payload design for downlink quantum key distribution and keyless communication using CubeSats Open
Quantum key distribution is costly and, at the moment, offers low performance in space applications. Other more recent protocols could offer a potential practical solution to this problem. In this work, a preliminary optical payload design…
View article: Multi‐Surface Adhesion Luminescent Solar Concentrators for Supply‐Less IoT
Multi‐Surface Adhesion Luminescent Solar Concentrators for Supply‐Less IoT Open
The growing prevalence of Internet of Things (IoT) devices hinges on resolving the challenge of powering sensors and transmitters. Addressing this, supply‐less IoT devices are gaining traction by integrating energy harvesters. This study i…
View article: Evolving photonic authentication with sustainable luminescent smart e‐tags
Evolving photonic authentication with sustainable luminescent smart e‐tags Open
Abstact Counterfeiting remains a significant threat, causing economic and safety concerns. Addressing this, authentication technologies have gained traction. With the rise of the Internet of Things, authentication is crucial. Photonic Phys…
View article: Simple portable quantum key distribution for science outreach
Simple portable quantum key distribution for science outreach Open
Quantum Key Distribution (QKD) has become an essential technology in the realm of secure communication, with applications ranging from secure data transmission to quantum networks. This paper presents a simple, compact, and cost-effective …
View article: Predicting the efficiency of luminescent solar concentrators for solar energy harvesting using machine learning
Predicting the efficiency of luminescent solar concentrators for solar energy harvesting using machine learning Open
Building-integrated photovoltaics (BIPV) is an emerging technology in the solar energy field. It involves using luminescent solar concentrators to convert traditional windows into energy generators by utilizing light harvesting and convers…
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LSC_KPI2023_REVISED_201123.xlsx
View article: LSC KPI
LSC KPI Open
Excel file with 3 sheets: i) LSC KPI ii) Key for Collins for LSC.KPI sheet iii) Acronyms list used in i) and ii)
View article: IAS/CEA Evolution of Dust in Nearby Galaxies (ICED): The spatially-resolved dust properties of NGC4254
IAS/CEA Evolution of Dust in Nearby Galaxies (ICED): The spatially-resolved dust properties of NGC4254 Open
We present the first preliminary results of the project ICED , focusing on the face-on galaxy NGC4254. We use the millimetre maps observed with NIKA2 at lRAM-30m. as part of the IMEGIN Guaranteed Time Large Program. and of a wide collectio…
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LSC_KPI2023_REVISED.xlsx
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LSC_KPI2023_REVISED_201123.xlsx
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LSC_KPI2023_REVISED_201123.xlsx
View article: Artificial neural networks for predicting optical conversion efficiency in luminescent solar concentrators
Artificial neural networks for predicting optical conversion efficiency in luminescent solar concentrators Open
Developing light-harvesting materials able to shape the sunlight to cope with the absorption region of photovoltaic (PV) cells presents an opportunity for the utilization of spectral converters like the luminescent solar concentrators (LSC…