The influence of surface treatment on the performance of photoconductive detectors based on silicon wafer (April 2024)

L Wu, M Zhang, X Shi, P Hu, H Yu… - IEEE Sensors …, 2024 - ieeexplore.ieee.org
Owing to its narrow bandgap and mature preparation process, silicon wafers were widely
used to prepare broadband photodetection devices. To address the issue of weak light …

Defect Analysis in a Long-Wave Infrared HgCdTe Auger-Suppressed Photodiode

M Kopytko, K Majkowycz, K Murawski, J Sobieski… - Sensors, 2024 - mdpi.com
Deep defects in the long-wave infrared (LWIR) HgCdTe heterostructure photodiode were
measured via deep-level transient spectroscopy (DLTS) and photoluminescence (PL). The …

Non-Equilibrium Long-Wave Infrared HgCdTe Photodiodes: How the Exclusion and Extraction Junctions Work Separately

M Kopytko, K Majkowycz, J Sobieski, T Manyk… - Materials, 2024 - mdpi.com
The cooling requirement for long-wave infrared detectors still creates significant limitations
to their functionality. The phenomenon of minority-carrier exclusion and extraction in narrow …

Interface trap-induced dark current in graded-layer long-wavelength infrared HgCdTe nBn photodetector

Y Zhang, T Cheng, T Xu, M Luo, S Luo, M Ge… - Infrared Physics & …, 2025 - Elsevier
Long-wavelength infrared (LWIR) mercury cadmium telluride (HgCdTe) nBn photodetectors
are highly promising for low dark current. Introducing Cd composition and do** …

Low-frequency noise and impedance measurements in Auger suppressed LWIR N+ p (π) P+ n+ HgCdTe detector

K Achtenberg, W Gawron, Z Bielecki - Infrared Physics & Technology, 2024 - Elsevier
The paper reports on the electrical performances of LWIR N+ p (π) P+ n+ HgCdTe
photodiodes optimized for λ cut-off (50%)≈ 10.6 μm at T= 230 K. Presented work mainly …

Low‐frequency noise and deep‐level transient spectroscopy in LWIR Auger‐suppressed Hg1-xCdxTe heterostructure detector

K Achtenberg, K Majkowycz, P Martyniuk, Z Bielecki - Optics Express, 2024 - opg.optica.org
Low-frequency noise spectroscopy (LFNS) along with deep-level transient spectroscopy
(DLTS) are complementary and effective tools to study and characterize the carrier traps in …

Performance Optimization of Hg1-xCdxTe Photovoltaic Detectors under Strong Illumination Considering Temperature and Wavelength

J Chen, W Chen, L Cai, P Yang, D Wang… - IEEE Photonics …, 2024 - ieeexplore.ieee.org
Currently, HgCdTe detectors are advancing towards very long wavelengths and room
temperature operation. However, as operating temperatures and illumination intensity …