Results 41 to 50 of about 691 (175)

Near‐Room‐Temperature Solution Epitaxy of Large‐Area High‐Mobility Two‐Dimensional Organic Single Crystals for Direct X‐Ray Detection

SmartMat, Volume 7, Issue 3, June 2026.
Centimeter‐scale 2,6‐diphenylanthracene (DPA) two‐dimensional organic single crystals (2DOSCs) are processed by surfactant‐assisted near‐room‐temperature solution epitaxy method. The as‐fabricated DPA 2DOSCs exhibit a maximum mobility of 5.55 cm2/(V ∙ s), a high sensitivity of 7.02 × 103 μC/(Gy∙cm2), and a low detection limit of 24.05 nGy/s, advancing ...
Yaoguang Li, Yiwen Ren, Wenbin Shi, Zheng Chen, Xiaotao Zhang, Fangxu Yang, Liqiang Li, Wenping Hu, Lingjie Sun   +8 more
wiley   +1 more source

A Novel Extraction Procedure of Contact Characteristic Parameters from Current–Voltage Curves in CdZnTe and CdTe Detectors

Sensors, 2023
The estimation of the characteristic parameters of the electrical contacts in CdZnTe and CdTe detectors is related to the identification of the main transport mechanisms dominating the currents.
Fabio Principato, Manuele Bettelli, Andrea Zappettini, Leonardo Abbene   +3 more
doaj   +1 more source

Modeling and Verification of 1/f Noise Mechanisms in FAPbBr3 Single‐Crystal X‐Ray Detectors

Advanced Electronic Materials, Volume 12, Issue 9, 11 May 2026.
We demonstratethat surface‐trap‐induced carrier number fluctuations are the dominantmechanism in FAPbBr3 Schottky devices, a conclusion supported by thedistinct defect profiles revealed by Drive‐Level Capacitance Profiling (DLCP). Throughnoise contribution decomposition, it is found that the 1/f noise of thedetector is the key noise source affecting ...
Zhongyu Yang, Qingli Zhang, Yuting Liu, Binbin Liu, Zhiping Zheng, Guangda Niu, Ling Xu   +6 more
wiley   +1 more source

Defect structure of CdZnTe

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2001
Abstract (Cd,Zn)Te single crystals fabricated in our laboratory by Vertical Gradient Freeze Method were subjected to two types of experiments. In the first experiment, samples were annealed at temperatures 600–900°C under different Cd overpressures. They were quenched after annealing to room temperature and Hall effect and conductivity measurements ...
Lyudmila Turyanska, P. Hoschl, E. Belas, R. Grill, J. Franc, P. Moravec   +5 more
openaire   +2 more sources

CsPbBr3–Nanodiamonds Hybrid Wafers for Mechanically Robust, High‐Performance X‐Ray Detection

Advanced Electronic Materials, Volume 12, Issue 10, 25 May 2026.
NDs‐engineered CsPbBr3 hybrid wafers, fabricated via scalable solid‐state grinding and cold pressing, utilize trace NDs to regulate mechanochemical conversion, promote heterogeneous nucleation, bridge grain boundaries, and passivate interfacial defects. The optimized wafer exhibits dense microstructures, improved charge transport, reduced dark current,
Yanan Gong, Zhuangjie Xu, Weidong Zhu, Xiaoxuan Zhang, Zihao Wang, Zeyang Ren, Yanshuang Ba, He Xi, Zhimin Li, Chunfu Zhang, Jincheng Zhang, Yue Hao   +11 more
wiley   +1 more source

Noise in CdZnTe detectors

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149), 2001
Noise in CdZnTe devices with different electrode configurations was investigated. Measurements on devices with guard-ring electrode structures showed that surface leakage current does not produce any significant noise. The parallel white noise component of the devices appeared to be generated by the bulk current alone, even though the surface current ...
Luke, P.N., Amman, M., Lee, J.S., Manfredi, P.F.   +3 more
openaire   +2 more sources

Performance of multielement CdZnTe detectors [PDF]

SPIE Proceedings, 1999
Single-element CdZnTe detectors are limited in size, and therefore efficiency, by the poor hole transport, even with a coplanar grid. We are investigating the possibility of a 27-element array using 15 mm X 15 mm X 15 mm elements for gamma-ray energies to 10 MeV for NASA planetary missions.
Calvin E. Moss, Kiril D. Ianakiev, Thomas H. Prettyman, Robert P. Reedy, Morag K. Smith, Martin R. Sweet, John Valentine   +6 more
openaire   +1 more source

Halide perovskites in wide‐spectrum photodetection

Bulletin of the Korean Chemical Society, Volume 47, Issue 5, Page 504-526, May 2026.
Recent advances in perovskite‐based photodetectors (PPDs), phototransistors, and photoconductors are technically discussed in this review. Moreover, the mechanism behind different harvesting processes in perovskite following the energy of photons is explained, where the gamma or x‐rays are ionizing.
Somayeh Gholipour, Reza Rahighi, Mohammad Panahi, Muhammad Naufal Lintangpradipto, Reza Ghayoor, Michael Saliba   +5 more
wiley   +1 more source

Progress and Prospects of Rare Metal‐Based Electrochemiluminescence Sensors for Detection of Water Environmental Pollutants

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Water pollution is becoming increasingly severe, posing a serious hazard to human health and ecological security. Therefore, it is necessary to develop rapid, sensitive, and universal analytical methods to detect residual pollutants in actual water.
Yi Xing, Ru Wu, Min Zhang, Faliang Cheng, Jun‐Jie Zhu   +4 more
wiley   +1 more source

Efficient Charge Transport in Zero‐Dimensional Perovskite for Ultrahigh‐Sensitivity X‐Ray Detection

Advanced Functional Materials, Volume 36, Issue 35, 30 April 2026.
A novel mono‐octahedral 0D Bi‐based Dpy3Bi2I12 perovskite strengthens the internal hydrogen bonds and forms a quasi‐2D lattice, exhibits exceptional charge transport and mobility, achieving high X‐ray sensitivity and ultralow‐dose imaging, and setting a new benchmark for 0D detector performance.
Xin Song, Lijie Wang, Jiayi Wang, Yafeng Xu, Renqian Zhou, Shulin Chen, Partha Maity, Peng Yuan, Yongcao Zhang, Bingyao Shao, Jian‐Xin Wang, Jun Yin, Ren‐Wu Huang, Youyou Yuan, Taimoor Ahmad, Osman M. Bakr, Omar F. Mohammed   +16 more
wiley   +1 more source