Preparation of the W18O49/g-C3N4 heterojunction catalyst with full-spectrum-driven photocatalytic N2 photofixation ability from the UV to near infrared region

2017 ◽  
Vol 41 (17) ◽  
pp. 8920-8926 ◽  
Author(s):  
Hongyu Liang ◽  
He Zou ◽  
Shaozheng Hu
Keyword(s):  
Quantum Efficiency ◽  
Near Infrared ◽  
Infrared Region ◽  
Infrared Light ◽  
Full Spectrum ◽  
Near Infrared Light ◽  
Light Utilization ◽  
Near Infrared Region

This work provides a strategy to improve the quantum efficiency of photocatalysts by promoting near-infrared light utilization.

Efficient perovskite/organic integrated solar cells with extended photoresponse to 930 nm and enhanced near-infrared external quantum efficiency of over 50%

Nanoscale ◽  
2018 ◽  
Vol 10 (7) ◽  
pp. 3245-3253 ◽  
Author(s):  
Qiang Guo ◽  
Hao Liu ◽  
Zhenzhen Shi ◽  
Fuzhi Wang ◽  
Erjun Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Near Infrared ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Light Utilization

Efficient perovskite/organic integrated solar cells with enhanced near-infrared light utilization were demonstrated.

Near-infrared light emitting diodes using PbSe quantum dots

RSC Advances ◽  
2015 ◽  
Vol 5 (67) ◽  
pp. 54109-54114 ◽  
Author(s):  
Long Yan ◽  
Xinyu Shen ◽  
Yu Zhang ◽  
Tieqiang Zhang ◽  
Xiaoyu Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Near Infrared ◽  
Light Emitting Diodes ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Light Emitting

The near-infrared light-emitting diodes using PbSe quantum dots were fabricated with the highest external quantum efficiency of 2.52%, which is comparable to those commercial InGaAsP LEDs and visible quantum dot electroluminescence LEDs.

scholarly journals Interface engineering for gain perovskite photodetectors with extremely high external quantum efficiency

RSC Advances ◽  
2020 ◽  
Vol 10 (54) ◽  
pp. 32976-32983
Author(s):  
Xinyu Zhao ◽  
Lixiang Huang ◽  
Yukun Wang ◽  
Xinglin Zhu ◽  
Lei Li ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Near Infrared ◽  
Infrared Region ◽  
High Gain ◽  
Ultraviolet Region ◽  
Interface Engineering ◽  
High Responsivity ◽  
Near Infrared Region

Efficient CH3NH3PbI3 photodetectors (PDs) with an extremely high gain of the maximum external quantum efficiency (EQE) of 140 000% within the ultraviolet region to the near infrared region (NIR) and an extremely high responsivity (R) under a low bias of −5 V were successfully fabricated.

Fabrication of a full-spectrum-response Cu2(OH)2CO3/g-C3N4 heterojunction catalyst with outstanding photocatalytic H2O2 production performance via a self-sacrificial method

2019 ◽  
Vol 48 (1) ◽  
pp. 182-189 ◽  
Author(s):  
Zheng Li ◽  
Nanni Xiong ◽  
Guizhou Gu
Keyword(s):  
Near Infrared ◽  
Production Performance ◽  
Infrared Light ◽  
H2o2 Production ◽  
Full Spectrum ◽  
Near Infrared Light ◽  
The Past ◽  
Photocatalytic Reactions ◽  
Spectrum Response

Over the past few decades, near infrared light (NIR), as an important part of sunlight, has seldom been utilized in photocatalytic reactions.

Expanding light utilization to the near-infrared region for hybrid bio–photoelectrochemical cells

Nanoscale ◽  
2017 ◽  
Vol 9 (27) ◽  
pp. 9404-9410 ◽  
Author(s):  
Lingling Zhang ◽  
He Zhang ◽  
Xiaowei Zhang ◽  
Yujie Han ◽  
Hui Zhang ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Region ◽  
Photoelectrochemical Cells ◽  
Comprehensive Utilization ◽  
Light Utilization ◽  
Near Infrared Region

A novel NIR-assisted glucose/air bio–photoelectrochemical (BPEC) cell is assembled in this work. It is regarded as an essential conceptual steppingstone towards the comprehensive utilization of whole sunlight.

scholarly journals Photocurrent Enhancement of PtSe2 Photodetectors by Using Au Nanorods

Photonics ◽  
2021 ◽  
Vol 8 (11) ◽  
pp. 505
Author(s):  
Tatsuya Nakazawa ◽  
Donghyun Kim ◽  
Shinichi Kato ◽  
Jusang Park ◽  
Jwamin Nam ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Region ◽  
Photochemical Reactions ◽  
Infrared Light ◽  
Localized Surface Plasmon ◽  
Transition Metal Dichalcogenide ◽  
Light Detection ◽  
Au Nanorods ◽  
Extinction Peak ◽  
Near Infrared Region

Compact and highly sensitive near-infrared photodetectors that are operable at room temperature are required for light detection and ranging and medical devices. Two-dimensional (2D) PtSe2, a transition metal dichalcogenide, is a candidate material for near-infrared light detection. However, the photoresponse properties of 2D PtSe2 are currently inferior to those of commercial materials. The localized surface plasmon resonance of Au has been widely used for photoelectric field enhancement and in photochemical reactions associated with phase relaxation from plasmon states that occur at specific wavelengths. Spherical Au nanocolloids exhibit an extinction peak in the visible light region, whereas nanorods can be tuned to exhibit the extinction peak in the near-infrared region by controlling their aspect ratio. In this study, hybrid Au nanorod/2D PtSe2 structure was fabricated via spin coating nanorods, with plasmon peaks in the near-infrared region, on 2D PtSe2. Furthermore, the effect of the concentration of the nanorod solution on the photoresponse of nanorod/2D PtSe2 was investigated. The photocurrent of 5 nM Au nanorod-coated 2D PtSe2 was fivefold higher than that of bare 2D PtSe2. The responsivity was maximum 908 μW/A at 0.5 V bias voltage. In addition, the photocurrent enhancement mechanism by Au nanorods is discussed.

Fabrication of three-dimensional photonic crystals for near-infrared light by micro-manipulation technique under optical microscope observation

2021 ◽  
Author(s):  
Shun Takahashi ◽  
Erika Kimura ◽  
Takeshi Ishida ◽  
Takeyoshi Tajiri ◽  
Katsuyuki Watanabe ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Near Infrared ◽  
Cavity Mode ◽  
Three Dimensional ◽  
Infrared Region ◽  
Optical Microscope ◽  
Microscope Observation ◽  
Infrared Light ◽  
Near Infrared Light ◽  
20 Nm

Abstract We developed a micro-manipulation technique performed under optical microscope observation, which enabled accurate fabrication of three-dimensional photonic crystals for near-infrared light. Thin GaAs plates having an in-plane pattern were picked up with a fine needle and were mechanically stacked one-by-one by using vertical posts as guides. In spite of the limited spatial resolution in the optical microscope images, the mechanical resolution of the micro-manipulator and the precisely fabricated vertical posts enabled a stacking error as small as 20 nm. Photoluminescence measurement of a nanocavity in the three-dimensional photonic crystals showed a cavity-mode peak in the near-infrared region.

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