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Technical blog dedicated to insights, innovations and applications of Cadmium Zinc Telluride (CZT) technology
Why is the study of interfacial states between CdZnTe and its passivation layer important for detector performance optimization?
Why is the study of interfacial states between CdZnTe and its passivation layer important for detector performance optimization?
Date: December 9, 2025
Hits: 167
What are the mechanisms by which bromine-methanol (BM) etching alters the surface state and prepares CdZnTe crystals for effective passivation?
What are the mechanisms by which bromine-methanol (BM) etching alters the surface state and prepares CdZnTe crystals for effective passivation?
Date: December 9, 2025
Hits: 157
How does surface leakage current affect the energy resolution and overall stability of CdZnTe radiation detectors?
How does surface leakage current affect the energy resolution and overall stability of CdZnTe radiation detectors?
Date: December 8, 2025
Hits: 163
What is the significance of the voltage-dependent variation in trap state density observed between 0 V and 1.4 V on CdZnTe surfaces?
What is the significance of the voltage-dependent variation in trap state density observed between 0 V and 1.4 V on CdZnTe surfaces?
Date: December 8, 2025
Hits: 14
How can equivalent circuit models be used to quantify the trap state density in passivated CdZnTe surfaces?
How can equivalent circuit models be used to quantify the trap state density in passivated CdZnTe surfaces?
Date: December 7, 2025
Hits: 21
What role do interfacial carrier trap states play in influencing the capacitance-voltage and conductance-voltage behavior of CdZnTe detectors?
What role do interfacial carrier trap states play in influencing the capacitance-voltage and conductance-voltage behavior of CdZnTe detectors?
Date: December 7, 2025
Hits: 17
What is the effect of NH₄F and H₂O₂ passivation on the formation and composition of the surface layer on CdZnTe crystals?
What is the effect of NH₄F and H₂O₂ passivation on the formation and composition of the surface layer on CdZnTe crystals?
Date: December 6, 2025
Hits: 561
How can X-ray photoelectron spectroscopy (XPS) be used to analyze surface chemical states before and after passivation of CZT crystals?
How can X-ray photoelectron spectroscopy (XPS) be used to analyze surface chemical states before and after passivation of CZT crystals?
Date: December 6, 2025
Hits: 17
What role does surface area play in determining the effectiveness of passivation treatments on CZT detectors?
What role does surface area play in determining the effectiveness of passivation treatments on CZT detectors?
Date: December 5, 2025
Hits: 20
How does surface passivation influence the stability and performance retention of CZT detectors over extended storage or operation periods?
How does surface passivation influence the stability and performance retention of CZT detectors over extended storage or operation periods?
Date: December 5, 2025
Hits: 131
What are the advantages of using sodium hypochlorite over other chemical passivants such as KOH, NH₄F, or (NH₄)₂S for CZT surface treatment?
What are the advantages of using sodium hypochlorite over other chemical passivants such as KOH, NH₄F, or (NH₄)₂S for CZT surface treatment?
Date: December 4, 2025
Hits: 136
How does the passivation effect differ between planar, bar, and quasi-hemispherical CZT detectors in terms of long-term performance?
How does the passivation effect differ between planar, bar, and quasi-hemispherical CZT detectors in terms of long-term performance?
Date: December 4, 2025
Hits: 169
In what ways do the electrical and spectroscopic properties of large-volume CZT detectors improve following NaOCl passivation?
In what ways do the electrical and spectroscopic properties of large-volume CZT detectors improve following NaOCl passivation?
Date: December 3, 2025
Hits: 30
How does NaOCl passivation affect the mobility-lifetime product and surface recombination velocity of CdZnTe detectors?
How does NaOCl passivation affect the mobility-lifetime product and surface recombination velocity of CdZnTe detectors?
Date: December 3, 2025
Hits: 29
What are the mechanisms by which sodium hypochlorite (NaOCl) passivation converts the Te-rich surface into a Te oxide layer on CZT crystals?
What are the mechanisms by which sodium hypochlorite (NaOCl) passivation converts the Te-rich surface into a Te oxide layer on CZT crystals?
Date: December 2, 2025
Hits: 50
How does the Te-rich layer on the CZT surface influence surface conductivity and charge trapping in radiation detectors?
How does the Te-rich layer on the CZT surface influence surface conductivity and charge trapping in radiation detectors?
Date: December 2, 2025
Hits: 17
What is the impact of bromine etching on the surface composition of CdZnTe crystals, and how does it lead to the formation of a Te-rich layer?
What is the impact of bromine etching on the surface composition of CdZnTe crystals, and how does it lead to the formation of a Te-rich layer?
Date: December 1, 2025
Hits: 75
How can the spatial and energy resolution of CdZnTe detectors be optimized for use in portable Compton cameras?
How can the spatial and energy resolution of CdZnTe detectors be optimized for use in portable Compton cameras?
Date: December 1, 2025
Hits: 23
What factors contribute to the degradation of energy resolution in CdZnTe detectors, and how can they be mitigated through event filtering?
What factors contribute to the degradation of energy resolution in CdZnTe detectors, and how can they be mitigated through event filtering?
Date: November 30, 2025
Hits: 37
How does the thickness of the CdZnTe crystal affect depth resolution and charge collection efficiency?
How does the thickness of the CdZnTe crystal affect depth resolution and charge collection efficiency?
Date: November 30, 2025
Hits: 18
What are the limitations of using a 2 mm pixel pitch in achieving sub-millimeter resolution with CdZnTe detectors?
What are the limitations of using a 2 mm pixel pitch in achieving sub-millimeter resolution with CdZnTe detectors?
Date: November 29, 2025
Hits: 134
What is the mechanism that allows CdZnTe detectors to achieve room-temperature operation without the need for cooling?
What is the mechanism that allows CdZnTe detectors to achieve room-temperature operation without the need for cooling?
Date: November 29, 2025
Hits: 135
How does the CdZnTe detector compare with scintillator and HPGe detectors in terms of size, energy resolution, and operating conditions?
How does the CdZnTe detector compare with scintillator and HPGe detectors in terms of size, energy resolution, and operating conditions?
Date: November 28, 2025
Hits: 164
What role does the weighting potential distribution play in determining the spatial resolution of a pixelated CdZnTe detector?
What role does the weighting potential distribution play in determining the spatial resolution of a pixelated CdZnTe detector?
Date: November 28, 2025
Hits: 179
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CdZnTe Association (CdZnTe.com) is a nonprofit website dedicated to Cadmium Zinc Telluride (CZT) technology. It serves as a comprehensive platform for sharing knowledge, research advancements, and practical applications related to CZT Crystals and Detectors. The site aims to support scientists, engineers, and students by providing access to technical resources, publications, and community-driven insights, fostering collaboration and innovation within the CZT research and development community.