Evidence map›Paper›PMID 41178237›Full record

ArticleSmall (Weinheim an der Bergstrasse, Germany)2025

Tuning Ultra-Narrow Direct Bandgap in α-Sn Nanocrystals: A CMOS-Compatible Approach for THz Applications.

Tiziano Bertoli, Elena Stellino, Francesco Minati, Camilla Belloni, Giovanni Tomassucci, Emanuele Bosco, Silvano Battisti, Leonardo Puppulin, Davide Cristofori, Vittorio Morandi and 10 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Small (Weinheim an der Bergstrasse, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

20 authors.

Tiziano BertoliDIET, Sapienza University of Rome, Via Eudossiana 18, Rome, 00184, Italy.
Elena StellinoDepartment of SBAI, Sapienza University of Rome, Via Antonio Scarpa 14, Rome, 00185, Italy.
Francesco MinatiDepartment of Physics, Sapienza University of Rome, P.le Aldo Moro 2, Rome, 00185, Italy.
Camilla BelloniDepartment of Molecular Sciences and Nanosystems, Università Ca' Foscari Venezia, Via Torino 155, Mestre-Venezia, 30170, Italy.
Giovanni TomassucciDepartment of Physics, Sapienza University of Rome, P.le Aldo Moro 2, Rome, 00185, Italy.
Emanuele BoscoDIET, Sapienza University of Rome, Via Eudossiana 18, Rome, 00184, Italy.
Silvano BattistiDIET, Sapienza University of Rome, Via Eudossiana 18, Rome, 00184, Italy.
Leonardo PuppulinDepartment of Molecular Sciences and Nanosystems, Università Ca' Foscari Venezia, Via Torino 155, Mestre-Venezia, 30170, Italy.
Davide CristoforiCNR, Institute for Nanostructured Materials (ISMN), Bologna Section, Via Piero Gobetti 101, Bologna, I-40129, Italy.
Vittorio MorandiCNR, Institute for Nanostructured Materials (ISMN), Bologna Section, Via Piero Gobetti 101, Bologna, I-40129, Italy.
Francesca RossiIMEM-CNR Institute, Parco Area delle Scienze 37/A, Parma, 43124, Italy.
Demetrio LogotetaDIET, Sapienza University of Rome, Via Eudossiana 18, Rome, 00184, Italy.
Alessandro NucaraDepartment of Physics, Sapienza University of Rome, P.le Aldo Moro 2, Rome, 00185, Italy.
Luisa BarbaInstitute of Crystallography, CNR, Sincrotrone Elettra, Strada Statale 14, Km 163.5, Area Science Park, Basovizza, Trieste, 34149, Italy.
Gaetano CampiInstitute of Crystallography, CNR, Via Salaria Km 29.300, Monterotondo, Roma, 00015, Italy.
Naurang Lal SainiDepartment of Physics, Sapienza University of Rome, P.le Aldo Moro 2, Rome, 00185, Italy.
Fabrizio PalmaDIET, Sapienza University of Rome, Via Eudossiana 18, Rome, 00184, Italy.
Pietro RielloDepartment of Molecular Sciences and Nanosystems, Università Ca' Foscari Venezia, Via Torino 155, Mestre-Venezia, 30170, Italy.
Michele BackDepartment of Molecular Sciences and Nanosystems, Università Ca' Foscari Venezia, Via Torino 155, Mestre-Venezia, 30170, Italy.ORCID https://orcid.org/0000-0003-1121-9414
Fernanda IrreraDIET, Sapienza University of Rome, Via Eudossiana 18, Rome, 00184, Italy.

Funding

ECS 0000024 Rome Technopole CUP B83C22002820006European UnionMinistero dell'Università e della Ricerca 2022X2Y8SJMinistero dell'Università e della Ricerca CUP: H53D23004710006
6 · The paper itself

Abstract

α-Sn has recently been attracting significant interest due to its unique electronic properties. However, alternative strategies to the conventional epitaxial growth on InSb to stabilize it at room temperature and the ability to manipulate its bandgap are still a challenge. In this work, a complementary metal oxide semiconductor (CMOS)-compatible process employing microwave irradiation is used to synthetize α-Sn nanoparticles (NPs) of different size on a Si substrate. Morphological characterizations suggest the possibility to control the average Sn NPs size by means of a combined dewetting and coalescence process induced by the microwaves on Sn films. Transmission Electron Microscopy (TEM) and Synchrotron Radiation-Grazing Incidence X-ray Diffraction (SR-GIXRD) analyses confirm the stabilization of the α-Sn phase within an oxide shell, while X-ray Photoelectron Spectroscopy (XPS) measurements allow tracking the oxide shell evolution and reveal the opening of a bandgap. Optical investigation demonstrates unprecedented tunability of the ultranarrow bandgap energy of α-Sn between 64 and 137 meV (15-35 THz). The observed bandgap modulation with NPs size is consistent with a quantum confinement effect, which suggests the proposed approach as an effective strategy for tuning the α-Sn bandgap and broadening its potential for a CMOS-compatible integration in next-generation terahertz technologies.

Indexed as

CMOS compatible processnanocrystalsquantum confinementTHz applicationsultra‐narrow bandgapα‐Sn

Identifiers

PMID41178237
PMCPMC12710133

What OpenQuestion holds

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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.