Investigation into Co and Ga<sub>2</sub>O<sub>3</sub> co-doped ZnSe chalcogenide composite semiconductor thin films fabricated using PLD

Pan, Yong; Wang, Li; Su, X. W.; Li, Shufeng; Gao, Dongwen; Han, Xiaowei; Yan, Huanhuan

doi:10.1039/c8ra02466a

Cited by 9 publications

(3 citation statements)

References 40 publications

(25 reference statements)

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“…The coating time at different pressures needs to be adjusted to maintain the same thickness of the film. According to our experimental results, the higher the pressure is, the thinner the plasma plume and the longer the deposition time will be. Here, the transmission spectrum is measured in visible and near-infrared regions.…”

Section: Resultsmentioning

confidence: 71%

“…Furthermore, the intensity of the crystal peak improves with the increase of pressure in the chamber. The reason for the crystal structure appearance should be explained as effect of the collisional force of gas molecules on the growth of particles in the plasma after increasing the pressure in the vacuum cavity. , Raman spectra also confirmed this reason according to the bonding information. Figure d–f shows that the amorphous film produced in the preparation environment of 2–4 Pa has less element bonding state peaks, which are located at 157, 194, and 335 cm –1 , as shown in Figure d.…”

Section: Resultsmentioning

confidence: 72%

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Invisibility Cloak Technology of Anti-Infrared Detection Materials Prepared Using CoGaZnSe Multilayer Nanofilms

Pan

Huang²,

Sun

et al. 2021

ACS Appl. Mater. Interfaces

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The development of infrared stealth clothing technology and materials has been widely studied. However, the research of near-infrared stealth clothing still faces some challenges including complex preparation processes, narrow spectral ranges, and poor antidetection efficiency. To solve these questions, a CoGaZnSe multilayer film used for anti-near-infrared detection is designed and prepared by pulse laser deposition (PLD) at different pressures from 2 to 12 Pa. Microstructures of the film can transform from amorphous to crystal at different Ar atmospheres demonstrated by X-ray diffraction, Raman spectroscopy, and theoretical calculations. The films with different transmittances from 10 to 95% are combined with multilayer films for reducing the infrared reflection, which results in the lowest energy loss per unit thickness of 1.01 × 10 −11 dB/cm. The light propagation in the multilayer is calculated by finite-difference time domain, revealing the regular sinusoidal propagation and absorption in multilayers. The multilayer films are coated on the surface of common clothing materials and tested using an infrared detector in the range of 400−6000 nm. The results prove that the quantum efficiency of infrared detection can be effectively reduced by CoGaZnSe multilayer films, especially for wool (83% in the range of 400−1800 nm and 86% in the range of 2000−6000 nm). Finally, a physical model is established to discover the mechanism of the antireflection and infrared effect and a theory of anti-infrared radiation. This research provides a new idea and method supporting the stealth technology and materials, which improves the efficiency of antiinfrared detection and makes it feasible to be applied in military, detection, and stealth technology.

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Section: Resultsmentioning

confidence: 71%

Section: Resultsmentioning

confidence: 72%

Invisibility Cloak Technology of Anti-Infrared Detection Materials Prepared Using CoGaZnSe Multilayer Nanofilms

Pan

Huang²,

Sun

et al. 2021

ACS Appl. Mater. Interfaces

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“…Pan et al prepared (Ga 2 O 3 ) 0.1 (Co) 0.5 (ZnSe) 0.4 nano films at room temperature by PLD. The films have high transmittance in the near-infrared band. , We selected ZnSe doped Co target, adjusted the ratio of Se and Co, and prepared nano films with high transmittance and refractive index by PLD coating method.…”

Section: Introductionmentioning

confidence: 99%

Polarization Maintaining Fiber Temperature and Stress Gradient Sensitization Sensor Based on Semiconductor-Metal–Polymer Three-Layer Film Coating

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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Increasing sensitivity, measuring points, and stability have always been the pursuit of sensors. ZnSe9:CO1 and Ag composite nano films were coated on polarization maintaining fiber (PMF). Then, the coated PMF was nested in capillary and hose which was encapsulated with polydimethylsiloxane (PDMS) and epoxy resin. The integrated capillary sensor and thermoplastic hose sensor were prepared. The gradient sensitization of various measurement parameters such as temperature, stress, and micro bending is realized. The temperature sensitivity is 1.49 nm/°C, the micro bending sensitivity is 1.72 nm/102 g, and the stress sensitivity is 6.27 nm/mε. The sensors maintain good linearity and instantaneous response while having high sensitivity. By adjusting the length of PMF, the number of troughs is increased in the same band range, and different troughs have different sensitivities, which solves the inherent problem of cross sensitivity and realizes multiparameter measurement. Capillary sensors are used for remote safe real-time monitoring of mechanical overheating, and hose sensors are used for real-time monitoring of bridge load and human joint bending. This work is of great significance to the extension of the application range of optical fiber sensor.

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Creation of shuttle-shaped nanoparticles using the method of magnetic polarization pulse laser ablation

Pan

Wang

et al. 2019

Applied Surface Science

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Investigation into Co and Ga₂O₃ co-doped ZnSe chalcogenide composite semiconductor thin films fabricated using PLD

Abstract: (Ga2O3)0.1(Co)0.5(ZnSe)0.4 thin films were fabricated via PLD at different pressures and substrate temperatures.

Cited by 9 publications

References 40 publications

Invisibility Cloak Technology of Anti-Infrared Detection Materials Prepared Using CoGaZnSe Multilayer Nanofilms

Invisibility Cloak Technology of Anti-Infrared Detection Materials Prepared Using CoGaZnSe Multilayer Nanofilms

Polarization Maintaining Fiber Temperature and Stress Gradient Sensitization Sensor Based on Semiconductor-Metal–Polymer Three-Layer Film Coating

Creation of shuttle-shaped nanoparticles using the method of magnetic polarization pulse laser ablation

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Investigation into Co and Ga2O3 co-doped ZnSe chalcogenide composite semiconductor thin films fabricated using PLD

Abstract: (Ga2O3)0.1(Co)0.5(ZnSe)0.4 thin films were fabricated via PLD at different pressures and substrate temperatures.

Cited by 9 publications

References 40 publications

Invisibility Cloak Technology of Anti-Infrared Detection Materials Prepared Using CoGaZnSe Multilayer Nanofilms

Invisibility Cloak Technology of Anti-Infrared Detection Materials Prepared Using CoGaZnSe Multilayer Nanofilms

Polarization Maintaining Fiber Temperature and Stress Gradient Sensitization Sensor Based on Semiconductor-Metal–Polymer Three-Layer Film Coating

Creation of shuttle-shaped nanoparticles using the method of magnetic polarization pulse laser ablation

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Investigation into Co and Ga₂O₃ co-doped ZnSe chalcogenide composite semiconductor thin films fabricated using PLD