Melt Growth of High-Resolution CdZnTe Detectors

Elastic Molecular‐Assisted Fabrication of Orthorhombic Non‐Perovskite CsPbI2Br for Ultralow Dark Current in Advanced X‐Ray Imaging

“…[17] Although CdZnTe boasts excellent absorptivity, it necessitates high-temperature processing conditions and is susceptible to structural imperfections and compositional inhomogeneity. [18,19] Lead halide perovskites (LHPs) have exhibited highly favorable characteristics for X-ray detection, showcasing superior attributes such as tunable bandgaps, high absorption coefficients, a large μ𝜏 product, high defect tolerance, a straightforward preparation process, and cost-effectiveness. [20][21][22] The utilization of a lowtemperature solution process facilitates the easy integration of LHPs with X-ray application-specific pixel arrays for signal readout.…”

“…[ 17 ] Although CdZnTe boasts excellent absorptivity, it necessitates high‐temperature processing conditions and is susceptible to structural imperfections and compositional inhomogeneity. [ 18,19 ]…”

Low-Voltage and Highly Sensitive PbS Quantum Dot Thin-Film X-ray Monitors

“…a-Se thick films can be conveniently grown in relatively large areas and used for solid-state X-ray image detectors. , As a drawback, a-Se-based detectors are rigid, fragile, and often bulky; in addition, they show low performance, mainly due to low mobility-lifetime product (μτ), thus requiring high operating voltages . CdZnTe (CZT) crystals are considered the gold standard for X-ray detection because of their desirable properties for a solid-state detector, i.e., high resistivity, wide band gap, high density, and high atomic number Z. , However, the CZT growth process is expensive and has a limited yield. ,, Finally, silicon and high-purity germanium (HPGe) are also widely adopted in direct-type detectors, even though they need to be cooled to cryogenic temperatures to reduce thermal noise within acceptable limits.…”

“…Solution-processed high-Z nanomaterials have recently gained attention as promising candidates for a new generation of thin-film, easily processable, and low-cost direct X-ray detectors. − ,− …”

“…18,19 However, the CZT growth process is expensive and has a limited yield. 15,20,21 Finally, silicon and high-purity germanium (HPGe) are also widely adopted in direct-type detectors, 15 even though they need to be cooled to cryogenic temperatures to reduce thermal noise within acceptable limits.…”