Scintillation Properties of an Organic–Inorganic Lead Iodide Perovskite Single Crystal Having Quantum Well Structures

Abstract

A (C 6 H 5 C 2 H 4 NH 3 ) 2 PbI 4 crystal was prepared to investigate its photoluminescence (PL) and scintillation properties. Two PL emission peaks at 525 and 560 nm derived from the recombination of excitons were observed. The obtained PL decay curve was approximated from the sum of three exponential decay functions related to the excitonic luminescence. Under X-ray irradiation, the excitonic emission at 560 nm from shallow trap centers was observed, and the X-ray induced scintillation decay times were 0.8, 6.0, and 37 ns. The full energy peak was observed under 241 Am α-ray (5.5 MeV) irradiation, and the light yield was estimated to be ~2900 ph/5.5 MeV-α.

Scintillation Properties of Pr-Doped Lanthanum Pyrosilicate Single Crystals

“…A scintillator is a special category of phosphor material that has a very unique ability to convert ionizing radiation such as X-and γ-rays to lower energy photons such as ultraviolet and visible light [1,2]. In particular, the solid scintillators come in many forms of materials, including plastics [3,4], glass [5][6][7], transparent ceramics [8,9], inorganic-organic perovskite [10,11], and single crystals [12][13][14]. Generally, these scintillators are combined with photodetectors such as photomultiplier tubes, silicon photomultipliers (SiPMs), or photodiodes.…”

Optical and Scintillation Characteristics of Tb-doped La2Si2O7 Single Crystal

“…Examples of fields that utilize scintillation detectors include astrophysics, (3) geophysics, (4) medicine, (5,6) environmental observation, (7) and natural resource exploration. (8,9) In addition, scintillator materials have many forms including glasses, (10)(11)(12)(13) translucent ceramics, (14)(15)(16)(17) plastics, (18,19) organic-inorganic composites, (20)(21)(22) and single crystals. (23)(24)(25)(26) Single-crystal scintillators are a preferred and common form of materials because of their high transparency, high effective atomic number, high light yield, physical durability, and chemical stability.…”

Radiation-induced Luminescence Properties of Tm-doped Bi4Ge3O12 Single Crystals

“…(4) Because the physical and chemical properties of each scintillator are different, the most suitable one is selected on the basis of the requirements of the application. Various material forms have been used as scintillators, such as crystals, (5)(6)(7)(8)(9) ceramics, (10,11) glasses, (12)(13)(14) and liquids. (15)(16)(17)(18) To date, scintillators emitting UV-visible photons have been mainly studied because they have been used in combination with photodetectors having wavelength sensitivity in the UV-visible ranges (19) such as photomultiplier tubes (PMTs) and Si photodiodes (PDs).…”