Solution-Grown Rubrene Crystals as Radiation Detecting Devices

Carman, Leslie; Martínez, Henry; Voss, Lars F.; Hunter, Steven L.; Beck, P.; Zaitseva, Natalia; Payne, Stephen A.; Irkhin, Pavel; Choi, Hyun Ho; Podzorov, Vitaly

doi:10.1109/tns.2017.2652139

Cited by 23 publications

(26 citation statements)

References 34 publications

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“…Such method has been employed to grow Rubrene single crystals, with a volume of about 1 cm 3 , which were demonstrated for neutrons detection. [ 41 ] Indeed, the same molecular crystal was already demonstrated for direct X‐ray detection, in that case employing physical vapor deposition (PVD) [ 42,43 ] (i.e., a no‐solution method) for the growth. [ 20 ] Recently, 2D PSCs, with unique structural compatibility and tunability, have been grown by this method and successfully tested as X‐ray detectors.…”

Section: Growth Methodsmentioning

confidence: 99%

Solution‐Grown Organic and Perovskite X‐Ray Detectors: A New Paradigm for the Direct Detection of Ionizing Radiation

Basiricò

Ciavatti

Fraboni

2020

Adv Materials Technologies

113

108

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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 opportunities for the utilization of solution‐grown organic materials and perovskites in the detection of ionizing radiation. This review presents an updated overview of the recently reported top performing and more innovative organic/perovskite‐based X‐ray detectors, providing a comparison and a critical discussion on the different materials’ properties and performance. Solution‐growth methods that allow to obtain detector grade electronic materials are discussed, focusing on the growth both of single crystals and of thin/thick films and foreseeing the implementation of large‐area, organic/hybrid‐, and perovskite‐based radiation detectors. Insights into the X‐ray detection mechanisms are provided, detailing the fundamental processes involved in the charge collection and in the photoconductive gain model, together with the typical figures of merit that describe radiation detector performance.

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Section: Growth Methodsmentioning

confidence: 99%

Solution‐Grown Organic and Perovskite X‐Ray Detectors: A New Paradigm for the Direct Detection of Ionizing Radiation

Basiricò

Ciavatti

Fraboni

2020

Adv Materials Technologies

113

108

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“…This deuterated stilbene is reported to have even better PSD capabilities than the standard stilbene [44]. Another organic crystal that should be mentioned at this stage is rubrene crystal, which is also grown from solution and is reported to show clear response to α particles, and a moderate response to fast neutrons [45].…”

Section: Organic Crystals Operationmentioning

confidence: 98%

Critical Review of Scintillating Crystals for Neutron Detection

2019

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There exists an ongoing need to develop and improve methods of detecting radioactive materials. As each radioactive isotope leaves a unique mark in a form of the particles it emits, new materials capable of detecting and measuring these particles are constantly sought. Neutrons and their detectors play a significant role in areas such as nuclear power generation, nuclear decommissioning and decontamination, border security, nuclear proliferation and nuclear medicine.Owing to the complexity of their detection, as well as scarcity of 3 He, which has historically been the preferred choice for neutron detection in many application fields, new sensitive materials are sought. Organic and inorganic scintillating crystals have been recognised as particularly good alternatives, and as such systems that utilise them are increasingly common. As they allow investigation of the neutron energy spectra, greater information about the radioactive source can be inferred. Therefore, in this article, an extensive review of scintillating crystals used for neutron detection is presented. By describing the history of scintillating crystals and discussing changes that occurred in their use and development of methods for radiation detection, the authors present a comprehensive overview of the current situation. Supported by a practical example, possible future directions of the research area are also presented.

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“…) for both holes [ 7,18,21,35 ] and electrons; [ 27,36 ] (b) reproducible observation of a bandlike transport and intrinsic mobility anisotropy in a number of systems, [24][25][26][27][35][36][37][38] signifying that charge delocalization in van der Waals crystals is indeed possible, and the transport regime not dominated by static disorder can be achieved; (c) the discovery of new types of conducting and even metallic interfaces; [39][40][41] (d) observation of a long-range (1-10 µm) diffusion of mobile triplet excitons in high-quality organic crystals, as well as non-linear regimes in photoconductivity with nontrivial set of power exponents (1, 1/2, 1/3, and 1/4) due to singlet fi ssion, triplet fusion and interaction of mobile excitons with charge carriers; [28][29][30][31] (e) realization of ionic-liquid gated single-crystal devices; [ 42,43 ] (f) realization of solid-state ionizing radiation sensors based on solution-grown organic crystals; [44][45][46][47][48] (g) development of fl exible single-crystal devices suitable for the studies of electromechanical properties of organic semiconductors; [ 22,49,50 ] (h) realization of extremely high current density in organic light-emitting transistors; [ 51 ] (i) study of electrical magnetochiral anisotropy in a bulk chiral molecular conductor; [ 52 ] (j) elucidation of the role of dimensionality on Beatrice Fraboni received an MPhil in microelectronics from the University of Cambridge, UK, and a PhD in Physics from the University of Bologna, Italy. In 2000 she joined the Faculty of Physics at the University of Bologna where she is presently a professor in condensed matter physics.…”

Section: Editorialmentioning

confidence: 99%