Andrea Ciavatti
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View article: Fast Neutron Detector Based on Hybrid 2D Perovskite Thin Films
Fast Neutron Detector Based on Hybrid 2D Perovskite Thin Films Open
2D hybrid perovskites are a novel and promising class of semiconductors for the realization of direct fast neutron detectors because they combine excellent transport properties with a large organic cation, rich in low‐Z elements, which str…
View article: Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation
Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation Open
Metal halide perovskites and organic semiconductors have attracted intense interest for ionizing radiation detection due to their advantages of strong attenuation, low leakage currents, synthetic versatility, and simple device manufacturin…
View article: A wearable tool for real-time dose monitoring during cancer radiation therapies
A wearable tool for real-time dose monitoring during cancer radiation therapies Open
We report on a wearable, human tissue-equivalent, real-time dosimeter designed to quantitatively monitor radiation absorbed by patients during cancer treatments. The fully organic device has been characterized under actual clinical conditi…
View article: Air‐Stable and Flexible Photodiode for X‐Rays Detection Based on a Hybrid Perovskite Active Layer and Organic Interlayers
Air‐Stable and Flexible Photodiode for X‐Rays Detection Based on a Hybrid Perovskite Active Layer and Organic Interlayers Open
Solution‐processed organic and hybrid semiconductor materials have great potential for ionizing radiation direct detection, as they combine high sensitivity, low‐power consumption, and flexibility. There is, however, an open challenge rela…
View article: Radiation Hardness and Defects Activity in PEA<sub>2</sub>PbBr<sub>4</sub> Single Crystals
Radiation Hardness and Defects Activity in PEA<sub>2</sub>PbBr<sub>4</sub> Single Crystals Open
Metal halide perovskites (MHPs) are low‐temperature processable hybrid semiconductor materials with exceptional performances that are revolutionizing the field of optoelectronic devices. Despite their great potential, commercial deployment…
View article: Real‐Time Radiation Beam Monitoring by Flexible Perovskite Thin Film Arrays
Real‐Time Radiation Beam Monitoring by Flexible Perovskite Thin Film Arrays Open
Real‐time and in‐line transversal monitoring of ionizing radiation beams is a crucial task for several applications which span from medical treatments to particle accelerators in high energy physics. Here a flexible and large area device b…
View article: Wearable Perovskite Films for On‐Line Monitoring of Radiotracers in Nuclear Medicine
Wearable Perovskite Films for On‐Line Monitoring of Radiotracers in Nuclear Medicine Open
On‐line in situ monitoring of radiation emitted by radiotracers during intravenous injection is of crucial importance for the safety of patients and personnel involved in nuclear medicine treatments and analysis. The aim of this work is to…
View article: Vacuum‐Deposited Perovskite Photodiodes for Visible and X‐Ray Photon Detection
Vacuum‐Deposited Perovskite Photodiodes for Visible and X‐Ray Photon Detection Open
Metal halide perovskite photodiodes have garnered extensive attention owing to their favorable optoelectronic properties, rendering them attractive for visible, near‐infrared, and X‐ray sensors. However, their predominant reliance on solut…
View article: Roadmap on printable electronic materials for next-generation sensors
Roadmap on printable electronic materials for next-generation sensors Open
The dissemination of sensors is key to realizing a sustainable, ‘intelligent’ world, where everyday objects and environments are equipped with sensing capabilities to advance the sustainability and quality of our lives—e.g. via smart homes…
View article: Dielectric multilayers impact on radiation-induced charge accumulation in highly sensitive oxide field effect transistors
Dielectric multilayers impact on radiation-induced charge accumulation in highly sensitive oxide field effect transistors Open
Radiation dosimetry is crucial in many fields where the exposure to ionizing radiation must be precisely controlled to avoid health and environmental safety issues. Among solid state detectors, we recently demonstrated that Radiation sensi…
View article: Layered metal-organic chalcogenide thin films for flexible and large-area X-ray direct detection
Layered metal-organic chalcogenide thin films for flexible and large-area X-ray direct detection Open
X-ray detection for personal dosimetry requires sensitive, stable and non-toxic materials. At the same time, scalability onto large-area and flexible substrates is emerging as a desirable property. To satisfy these requirements, novel mate…
View article: Tissue Equivalent Curved Organic X‐ray Detectors Utilizing High Atomic Number Polythiophene Analogues
Tissue Equivalent Curved Organic X‐ray Detectors Utilizing High Atomic Number Polythiophene Analogues Open
Organic semiconductors are a promising material candidate for X‐ray detection. However, the low atomic number (Z) of organic semiconductors leads to poor X‐ray absorption thus restricting their performance. Herein, the authors propose a ne…
View article: Photoinduced Current Transient Spectroscopy on Metal Halide Perovskites: Electron Trapping and Ion Drift
Photoinduced Current Transient Spectroscopy on Metal Halide Perovskites: Electron Trapping and Ion Drift Open
Metal halide perovskites (MHPs) are disruptive materials for a vast class of optoelectronic devices. The presence of electronic trap states has been a tough challenge in terms of characterization and thus mitigation. Many attempts based on…
View article: Radiation Hardness and Defects Activity in PEA2PbBr4 Single Crystals
Radiation Hardness and Defects Activity in PEA2PbBr4 Single Crystals Open
Metal halide perovskites (MHPs) are low-temperature processable hybrid semiconductor materials with exceptional performances that are revolutionizing the field of optoelectronic devices. Despite their great potential, commercial deployment…
View article: Laminated Polymer‐Encapsulated Halide Perovskite Photoconductors
Laminated Polymer‐Encapsulated Halide Perovskite Photoconductors Open
Herein, a simple, solvent‐free method to fabricate polymer‐encapsulated halide perovskite photoconductors is described. Dry mechanochemical synthesis is used to prepare CsPbBr 3 in the presence of poly(butyl methacrylate) (PBMA). The resul…
View article: Record Stability for Fully Passive Perovskite‐Based X‐Ray Detectors Through the Use of Starch as Templating Agent
Record Stability for Fully Passive Perovskite‐Based X‐Ray Detectors Through the Use of Starch as Templating Agent Open
High sensitivity and efficient X‐ray detectors are needed to promote and boost their application as tools in medical diagnostics and radiotherapy. Lead halide perovskites have emerged recently as a novel class of material for efficient X‐r…
View article: X‐Ray Nanoanalysis Revealing the Role of Electronically Active Passivation Layers in Perovskite X‐Ray film Detectors
X‐Ray Nanoanalysis Revealing the Role of Electronically Active Passivation Layers in Perovskite X‐Ray film Detectors Open
X‐ray direct detectors based on hybrid lead‐halide perovskite have seen a dramatic increase of interest in the last years. A rush for the achievement of high performing devices drives the scientific community. In this context, several phot…
View article: Flexible fully organic indirect detector for megaelectronvolts proton beams
Flexible fully organic indirect detector for megaelectronvolts proton beams Open
View article: Mixed 3D–2D Perovskite Flexible Films for the Direct Detection of 5 MeV Protons
Mixed 3D–2D Perovskite Flexible Films for the Direct Detection of 5 MeV Protons Open
This study reports on a novel, flexible, proton beam detector based on mixed 3D–2D perovskite films deposited by solution onto thin plastic foils. The 3D–2D mixture allows to obtain micrometer‐thick and highly uniform films that constitute…
View article: Trap States Ruling Photoconductive Gain in Tissue‐Equivalent, Printed Organic X‐Ray Detectors
Trap States Ruling Photoconductive Gain in Tissue‐Equivalent, Printed Organic X‐Ray Detectors Open
Organic semiconductors are excellent candidates for X‐ray detectors that can adapt to new applications, with unique properties including mechanical flexibility and the ability to cover large surfaces. Their chemical composition, primarily …
View article: X‐ray Detectors With Ultrahigh Sensitivity Employing High Performance Transistors Based on a Fully Organic Small Molecule Semiconductor/Polymer Blend Active Layer
X‐ray Detectors With Ultrahigh Sensitivity Employing High Performance Transistors Based on a Fully Organic Small Molecule Semiconductor/Polymer Blend Active Layer Open
The implementation of organic semiconductor (OSC) materials in X‐ray detectors provides exciting new opportunities for developing a new generation of biocompatible devices with high potential for the fabrication of sensitive and low‐cost X…
View article: Fully Textile X‐Ray Detectors Based on Fabric‐Embedded Perovskite Crystals
Fully Textile X‐Ray Detectors Based on Fabric‐Embedded Perovskite Crystals Open
The interest and thrust for wearable ionizing radiation dosimeters are rapidly growing, stimulated by a large number of different applications impacting on humankind, spanning from medicine to civil security and space missions. Lead halide…
View article: X-Ray-Induced Modification of the Photophysical Properties of MAPbBr<sub>3</sub> Single Crystals
X-Ray-Induced Modification of the Photophysical Properties of MAPbBr<sub>3</sub> Single Crystals Open
Methylammonium lead tribromide (MAPbBr3) perovskite single crystals demonstrate to be excellent direct X-ray and gamma-ray detectors with outstanding sensitivity and low limit of detection. Despite this, thorough studies on the …
View article: Molecular Weight Tuning of Organic Semiconductors for Curved Organic–Inorganic Hybrid X‐Ray Detectors
Molecular Weight Tuning of Organic Semiconductors for Curved Organic–Inorganic Hybrid X‐Ray Detectors Open
Curved X‐ray detectors have the potential to revolutionize diverse sectors due to benefits such as reduced image distortion and vignetting compared to their planar counterparts. While the use of inorganic semiconductors for curved detector…
View article: Ultra‐Stable and Robust Response to X‐Rays in 2D Layered Perovskite Micro‐Crystalline Films Directly Deposited on Flexible Substrate
Ultra‐Stable and Robust Response to X‐Rays in 2D Layered Perovskite Micro‐Crystalline Films Directly Deposited on Flexible Substrate Open
2D layered hybrid perovskites have recently attracted an increasing interest as active layers in LEDs and UV–Vis photodetectors. 2D perovskites crystallize in a natural self‐assembled quantum well‐like structure and possess several interes…
View article: Direct detection of 5-MeV protons by flexible organic thin-film devices
Direct detection of 5-MeV protons by flexible organic thin-film devices Open
The direct detection of 5-MeV protons by a flexible organic thin-film device is here reported.
View article: Designing Ultraflexible Perovskite X‐Ray Detectors through Interface Engineering
Designing Ultraflexible Perovskite X‐Ray Detectors through Interface Engineering Open
X‐ray detectors play a pivotal role in development and advancement of humankind, from far‐reaching impact in medicine to furthering the ability to observe distant objects in outer space. While other electronics show the ability to adapt to…
View article: Solution‐Grown Organic and Perovskite X‐Ray Detectors: A New Paradigm for the Direct Detection of Ionizing Radiation
Solution‐Grown Organic and Perovskite X‐Ray Detectors: A New Paradigm for the Direct Detection of Ionizing Radiation Open
The recent years witnessed an unprecedented enhancement in improved functionality materials and in the sophistication of solution‐based device fabrication techniques. Such significant advancements lead to unexpected and effective opportuni…
View article: Characterization of an organic semiconductor diode for dosimetry in radiotherapy
Characterization of an organic semiconductor diode for dosimetry in radiotherapy Open
Purpose The development of novel detectors for dosimetry in advanced radiotherapy modalities requires materials that have a water equivalent response to ionizing radiation such that characterization of radiation beams can be performed with…
View article: Morphology and mobility as tools to control and unprecedentedly enhance X-ray sensitivity in organic thin-films
Morphology and mobility as tools to control and unprecedentedly enhance X-ray sensitivity in organic thin-films Open
Organic semiconductor materials exhibit a great potential for the realization of large-area solution-processed devices able to directly detect high-energy radiation. However, only few works investigated on the mechanism of ionizing radiati…