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A Novel Method to Obtain Higher Deposition Rates of CdTe Using Low Temperature LPCVD for Surface Passivation of HgCdTe
The deposition rate of CdTe passivation films has been increased greatly by the implementation of a novel design of a graphite cracker cell. This...
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Hole Transport in Arsenic-Doped Hg1−x Cd x Te with x ≥ 0.5
Hole transport in arsenic-doped p -type Hg 1- x Cd x Te epitaxial layers with x ≥ 0.5 has been studied employing Hall-effect measurements and...
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Solution-processed semiconductors for next-generation photodetectors
Efficient light detection is central to modern science and technology. Current photodetectors mainly use photodiodes based on crystalline inorganic...
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Overview of Crystals, Bonding, Imperfections, Atomic Models, Narrow and Wide Bandgap Semiconductors and, Semiconductor Devices
In this chapter, the basic concepts of Materials Science are presented that will help to understand the lattice structure of semiconductors....
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Multi-analytical investigation into painting materials and techniques: the wall paintings of Abuna Yemata Guh church
Abuna Yemata Guh is one of the nine Saints who are traditionally claimed to have come to Northern Ethiopia in the beginning of the sixth century and...
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Low Temperature, Rapid Thermal Cycle Annealing of HgCdTe Grown on CdTe/Si
The HgCdTe(MCT) grown on CdTe/Si substrate has a high dislocation density due to lattice mismatch. Thermal cycle annealing (TCA) is effective in...
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In Situ Arsenic Do** of CdTe/Si by Molecular Beam Epitaxy
p -Type do** of the absorbed layer has been a significant challenge for CdTe solar cells. In this work, we report on in situ arsenic do** of...
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Higher Dislocation Density of Arsenic-Doped HgCdTe Material
There is a well-known direct negative correlation between dislocation density and optoelectronic device performance. Reduction in detector noise...
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Numerical Simulation of the Modulation Transfer Function in HgCdTe Detector Arrays
In this work, we develop a method for simulating the modulation transfer function (MTF) of infrared detector arrays, which is based on numerical...
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Surface Passivation of HgCdTe Using Low-Pressure Chemical Vapor Deposition of CdTe
CdTe passivation films have been deposited on Hg 1− x Cd x Te ( x = 0.35) samples used for infrared detectors by low-pressure chemical vapor deposition...
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Impact of Tellurium Precipitates in CdZnTe Substrates on MBE HgCdTe Deposition
State-of-the-art (112)B CdZnTe substrates were examined for near-surface tellurium precipitate-related defects. The Te precipitate density was...
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A Novel Metal-Rich Anneal for In Vacuo Passivation of High-Aspect-Ratio Mercury Cadmium Telluride Surfaces
A new method for Cd-rich annealing of mercury cadmium telluride (MCT) was developed based on the observation that the deposition of Cd onto MCT by...
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Modeling Photocurrent Spectra of Single-Color and Dual-Band HgCdTe Photodetectors: Is 3D Simulation Unavoidable?
By systematically comparing one-, two-, and three-dimensional (1D, 2D, 3D) simulations of a single-color HgCdTe n -on- p photodiode, we discuss...
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Large-Format and Long-Wavelength Infrared Mercury Cadmium Telluride Detectors
Due to continuous improvement of traditional liquid-phase epitaxy n -on- p technology, excellent mid-wavelength infrared HgCdTe (MCT) detectors with...
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As-Received CdZnTe Substrate Contamination
State-of-the-art as-received (112)B CdZnTe substrates were examined for surface impurity contamination, polishing damage, and tellurium...
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A Novel Method for In Situ Estimation of Hg1−x Cd x Te Etch Rate in Real Time
A novel and noninvasive method to determine the in situ etch rate (ER) of inductively coupled plasma (ICP)-etched Hg 1− x Cd x Te in real time is...
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Evaluation of Quantum Efficiency, Crosstalk, and Surface Recombination in HgCdTe Photon-Trap** Structures
The quantum efficiency (QE) in HgCdTe photovoltaic pixel arrays employing a photon-trap** (PT) structure realized with a periodic array of pillars...
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High-Performance M/LWIR Dual-Band HgCdTe/Si Focal-Plane Arrays
Mercury cadmium telluride (HgCdTe) grown on large-area silicon (Si) substrates allows for larger array formats and potentially reduced focal-plane...