Purity analysis for room-temperature semiconductor radiation detection material, CsPbBr3, using ICP-MS

2020 ◽  
Vol 35 (11) ◽  
pp. 2672-2678
Author(s):  
Ulrich Makanda ◽  
Alexandre Voinot ◽  
Ramjee Kandel ◽  
Yu Wu ◽  
Matthew Leybourne ◽  
...  
Keyword(s):  
Room Temperature ◽  
Radiation Detector ◽  
Radiation Detection ◽  
Impurity Analysis ◽  
Icp Ms ◽  
Purity Analysis

An ICP-MS protocol has been adapted to the impurity analysis of potential radiation detector, CsPbBr3. The newly developed method was validated by conducting a series of spike-and-recovery experiments based on solution synthesized CsPbBr3.

Alkali Metal Chalcogenides for Radiation Detection

2011 ◽  
Vol 1341 ◽  
Author(s):  
J. A. Peters ◽  
Zhifu Liu ◽  
B. W. Wessels ◽  
I. Androulakis ◽  
C. P. Sebastian ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Alkali Metal ◽  
Charge Transport ◽  
Band Gap ◽  
Room Temperature ◽  
Gamma Ray ◽  
Radiation Detector ◽  
Radiation Detection ◽  
Charge Carriers ◽  
Metal Chalcogenides

ABSTRACTWe report on the optical and charge transport properties of novel alkali metal chalcogenides, Cs2Hg6S7 and Cs2Cd3Te4, pertaining to their use in radiation detection. Optical absorption, photoconductivity, and gamma ray response measurements for undoped crystals were measured. The band gap energies of the Cs2Hg6S7 and Cs2Cd3Te4 compounds are 1.63 eV and 2.45 eV, respectively. The mobility-lifetime products for charge carriers are of the order of ~10-3 cm2/V for electrons and ~10-4 cm2/V for holes. Detectors fabricated from the ternary compound Cs2Hg6S7 shows well-resolved spectroscopic features at room temperature in response to ϒ -rays at 122 keV from a 57Co source, indicating its potential as a radiation detector.

scholarly journals Photothermal, Photoelectric, and Photothermoelectric Effects in Bi-Sb Thin Films in the Terahertz Frequency Range at Room Temperature

Photonics ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 76
Author(s):  
Mikhail K. Khodzitsky ◽  
Petr S. Demchenko ◽  
Dmitry V. Zykov ◽  
Anton D. Zaitsev ◽  
Elena S. Makarova ◽  
...  
Keyword(s):  
Thin Films ◽  
Terahertz Radiation ◽  
Room Temperature ◽  
Voltage Drop ◽  
Radiation Detection ◽  
Radiation Detectors ◽  
Thz Radiation ◽  
Terahertz Frequency ◽  
Frequency Range ◽  
Terahertz Frequency Range

The terahertz frequency range is promising for solving various practically important problems. However, for the terahertz technology development, there is still a problem with the lack of affordable and effective terahertz devices. One of the main tasks is to search for new materials with high sensitivity to terahertz radiation at room temperature. Bi1−xSbx thin films with various Sb concentrations seem to be suitable for such conditions. In this paper, the terahertz radiation influence onto the properties of thermoelectric Bi1−xSbx 200 nm films was investigated for the first time. The films were obtained by means of thermal evaporation in vacuum. They were affected by terahertz radiation at the frequency of 0.14 terahertz (THz) in the presence of thermal gradient, electric field or without these influences. The temporal dependencies of photoconductivity, temperature difference and voltage drop were measured. The obtained data demonstrate the possibility for practical use of Bi1−xSbx thin films for THz radiation detection. The results of our work promote the usage of these thermoelectric materials, as well as THz radiation detectors based on them, in various areas of modern THz photonics.

scholarly journals Role of selenium addition to CdZnTe matrix for room-temperature radiation detector applications

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
U. N. Roy ◽  
G. S. Camarda ◽  
Y. Cui ◽  
R. Gul ◽  
A. Hossain ◽  
...  
Keyword(s):  
Room Temperature ◽  
Radiation Detector ◽  
Temperature Radiation

Evaluation of Electrical Contact Material Stability on Mercuric Iodide

1993 ◽  
Vol 302 ◽  
Author(s):  
A. Y. Cheng
Keyword(s):  
Free Energy ◽  
Room Temperature ◽  
Electrical Contact ◽  
Radiation Detection ◽  
Electrical Contacts ◽  
Contact Material ◽  
Mercuric Iodide ◽  
Energy Data ◽  
Contact Materials ◽  
Temperature Radiation

ABSTRACTMercuric iodide detectors are leading candidates for room-temperature radiation detection applications. The inherently reactive nature of mercuric iodide limits the number of materials suitable for fabrication of electrical contacts. The theoretical stabilities of elemental contact materials on mercuric iodide were evaluated at 25°C. Additionally, the stabilities of transparent conductive compounds, for photodetector applications, were studied. Calculations were based on Gibbs free energy data, estimates and a series of hypothesized reactions with mercuric iodide. Leading candidate materials were identified and compared to experimental results.

scholarly journals Growth and characterization of CdTeSe for room-temperature radiation detector applications

2013 ◽  
Author(s):  
U. N. Roy ◽  
A. E. Bolotnikov ◽  
G. S. Camarda ◽  
Y. Cui ◽  
A. Hossain ◽  
...  
Keyword(s):  
Room Temperature ◽  
Radiation Detector ◽  
Temperature Radiation

scholarly journals Elemental Impurity Analysis of Mercuric Iodide by Icp/Ms

1993 ◽  
Vol 302 ◽  
Author(s):  
Eilene S. Cros ◽  
Eugene Mroz ◽  
José A. Olivares
Keyword(s):  
Mass Spectroscopy ◽  
Inductively Coupled Plasma ◽  
Mercuric Iodide ◽  
Inductively Coupled ◽  
Impurity Analysis ◽  
Icp Ms ◽  
Contamination Levels

ABSTRACTA method has been developed to analyze mercuric iodide (HgI2) for elemental contamination using Inductively Coupled Plasma/Mass Spectroscopy (ICP/MS). This paper will discuss the ICP/MS method, the effectiveness of purification schemes for removing impurities from Hgl2, as well as preliminary correlations between HgI2 detectorperformance and elemental contamination levels.

Room‐temperature CO2laser radiation detector

1991 ◽  
Vol 59 (13) ◽  
pp. 1529-1531 ◽  
Author(s):  
T. A. S. Srinivas ◽  
P. J. Timans ◽  
R. J. Butcher ◽  
H. Ahmed
Keyword(s):  
Room Temperature ◽  
Radiation Detector
Sign in / Sign up

Export Citation Format

Share Document