Surface Modified CsPbBr₃ Nanocrystals Enable Free Radical Thermal Polymerization of Efficient Ultrafast Polystyrenic Nanocomposite Scintillators

Francesco Carulli; Andrea Erroi; Francesco Bruni; Matteo L. Zaffalon; Mingming Liu; Roberta Pascazio; Abdessamad El Adel; Federico Catalano; Alessia Cemmi; Ilaria Di Sarcina; Francesca Rossi; Laura Lazzarini; Daniela E. Manno; Ivan Infante; Liang Li; Sergio Brovelli

doi:10.1021/acsenergylett.4c02711

journal article·2025-01-10

Surface Modified CsPbBr₃ Nanocrystals Enable Free Radical Thermal Polymerization of Efficient Ultrafast Polystyrenic Nanocomposite Scintillators

Francesco Carulli, Andrea Erroi, Francesco Bruni, Matteo L. Zaffalon, Mingming Liu, Roberta Pascazio, Abdessamad El Adel, Federico Catalano, Alessia Cemmi, Ilaria Di Sarcina, Francesca Rossi, Laura Lazzarini, Daniela E. Manno, Ivan Infante, Liang Li, Sergio Brovelli

ACS Energy Letters· Volume 10· Issue 1

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Source abstract

Abstract

Lead halide perovskite nanocrystals (LHP-NCs) embedded in a plastic matrix are highly promising for a variety of photonic technologies and are quickly gaining attention as ultrafast, radiation-resistant nanoscintillators for radiation detection. However, advancements in LHP-NC-based photonics are hindered by their well-known thermal instability, which makes them unsuitable for industrial thermally activated mass polymerization processes, crucial for creating polystyrene-based scintillating nanocomposites. In this study, we address this challenge by presenting the first thermal nanocomposite scintillators made from CsPbBr 3 NCs passivated with fluorinated ligands that remain attached to the particles surfaces even at high temperatures, enabling their integration into mass-cured polyvinyl toluene without compromising optical properties. Consequently, these nanocomposites demonstrate scintillation light yields reaching 10 400 photons/MeV, subnanosecond scintillation kinetics, and remarkable radiation resilience, able to withstand γ radiation doses of up to 1 MGy. This performance not only meets but also exceeds the scintillation of plastic scintillators despite the radiation-induced damage to the host matrix.

Source: openalex_inverted_index · Quality: baseline

Research context

Polymers Nanomaterials Electronic materials

OpenAlex topics: Radiation Detection and Scintillator Technologies · Perovskite Materials and Applications · Luminescence Properties of Advanced Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Science, University of Milano-Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy

School of Environmental Science and Engineering, Shanghai Jiao Tong University, Weiliu Road, Minhang District, 200240 Shanghai, P. R. China

Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States

Department of Materials Science and Engineering, University of California, Berkeley, 210 Hearst Memorial Mining Building, Berkeley, California 94720, United States

BCMaterials, Basque Center for Materials, Applications, and Nanostructures, UPV/EHU Science Park, Leioa 48940, Spain

Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy

Nuclear Department, ENEA Casaccia Research Center, Via Anguillarese 301, 00123 Roma, Italy

IMEM-CNR Institute, Parco Area delle Scienze 37/A, 43124 Parma, Italy

Department of Mathematics and Physics ‘E. De Giorgi’, University of Salento, Strada Provinciale 6, 73100 Lecce, Italy

Ikerbasque Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Spain

Macao Institute of Materials Science and Engineering (MIMSE), Macau University of Science and Technology, Taipa, Macao 999078, P. R. China

Funding

HORIZON EUROPE European Innovation Council · Ministero dell?Istruzione, dell?Universit? e della Ricerca · NextGenerationEU · Agenzia Spaziale Italiana · H2020 European Research Council

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