Designing Near-Infrared and Visible Light Emitters by Postsynthetic Modification of Ln+3-IRMOF-3

2014 ◽  
Vol 2014 (31) ◽  
pp. 5285-5295 ◽  
Author(s):  
Reda M. Abdelhameed ◽  
Luis D. Carlos ◽  
P. Rabu ◽  
Sérgio M. Santos ◽  
Artur M. S. Silva ◽  
...  
Keyword(s):  
Visible Light ◽  
Near Infrared ◽  
Light Emitters ◽  
Postsynthetic Modification

scholarly journals Towards multifunctional lanthanide-based metal–organic frameworks

2015 ◽  
Vol 51 (68) ◽  
pp. 13313-13316 ◽  
Author(s):  
Gerard Tobin ◽  
Steve Comby ◽  
Nianyong Zhu ◽  
Rodolphe Clérac ◽  
Thorfinnur Gunnlaugsson ◽  
...  
Keyword(s):  
Visible Light ◽  
Near Infrared ◽  
Photophysical Properties ◽  
Metal Organic Frameworks ◽  
Structure Type ◽  
Lanthanide Ions ◽  
Light Emitters ◽  
Metal Organic

The structure-type of a Ho(iii)-based MOF can be varied using a range of different lanthanide ions to tune the photophysical properties and produce ligand-sensitised near-infrared and visible light emitters.

scholarly journals Microstructure and Photothermal Conversion Performance of Ti/(Mo-TiAlN)/(Mo-TiAlON)/Al2O3 Selective Absorbing Film for Non-Vacuum High-Temperature Applications

2020 ◽  
Vol 11 (1) ◽  
pp. 124
Author(s):  
Haibin Geng ◽  
Hanzhe Ye ◽  
Xingliang Chen ◽  
Sibin Du
Keyword(s):  
Visible Light ◽  
Near Infrared ◽  
Substitutional Solid Solution ◽  
Experimental Conditions ◽  
Al Content ◽  
Spectrum Range ◽  
Light Interference ◽  
Transmission Electron ◽  
Conversion Performance ◽  
Columnar Grain

This paper aims to clarify the phase composition in each sub-layer of tandem absorber TiMoAlON film and verify its thermal stability. The deposited multilayer Ti/(Mo-TiAlN)/(Mo-TiAlON)/Al2O3 films include an infrared reflectance layer, light interference absorptive layers with different metal doping amounts, and an anti-reflectance layer. The layer thicknesses of Ti, Mo-TiAlN, Mo-TiAlON, and Al2O3 are 100, 300, 200, and 80 nm, respectively. Al content increases to 12 at.% and the ratio of N/O is nearly 0.1, which means nitride continuously changes to oxide. According to X-ray Diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) results, the diffraction peak that appears at 2θ = 40° demonstrates that Mo element aggregates in the substitutional solid solution (Ti,Al)(O,N) columnar grain. TiMoAlON films have low reflectivity in the spectrum range of 300–900 nm. When Al content is more than 10 at.%, absorptivity is almost in the spectrum range from visible to infrared, but absorptivity decreases in the ultraviolet spectrum range. When Al content is increased to 12 at.%, absorptivity α decreases by 0.05 in the experimental conditions. After baking in atmosphere at 500 °C for 8 h, the film has the highest absorptivity when doped with 2 at.% Mo. In the visible-light range, α = 0.97, and in the whole ultraviolet-visible-light near-infrared spectrum range, α = 0.94, and emissivity ε = 0.02 at room temperature and ε = 0.10 at 500 °C.

Kinetics of muscle deoxygenation and microvascular Po2 during contractions in rat: comparison of optical spectroscopy and phosphorescence-quenching techniques

2012 ◽  
Vol 112 (1) ◽  
pp. 26-32 ◽  
Author(s):  
Shunsaku Koga ◽  
Yutaka Kano ◽  
Thomas J. Barstow ◽  
Leonardo F. Ferreira ◽  
Etsuko Ohmae ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Visible Light ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Fiber Type ◽  
Type I ◽  
Phosphorescence Quenching ◽  
Mean Response Time ◽  
Muscle Deoxygenation ◽  
Visible Light Spectroscopy

The overarching presumption with near-infrared spectroscopy measurement of muscle deoxygenation is that the signal reflects predominantly the intramuscular microcirculatory compartment rather than intramyocyte myoglobin (Mb). To test this hypothesis, we compared the kinetics profile of muscle deoxygenation using visible light spectroscopy (suitable for the superficial fiber layers) with that for microvascular O2 partial pressure (i.e., PmvO2, phosphorescence quenching) within the same muscle region (0.5∼1 mm depth) during transitions from rest to electrically stimulated contractions in the gastrocnemius of male Wistar rats ( n = 14). Both responses could be modeled by a time delay (TD), followed by a close-to-exponential change to the new steady level. However, the TD for the muscle deoxygenation profile was significantly longer compared with that for the phosphorescence-quenching PmvO2 [8.6 ± 1.4 and 2.7 ± 0.6 s (means ± SE) for the deoxygenation and PmvO2, respectively; P < 0.05]. The time constants (τ) of the responses were not different (8.8 ± 4.7 and 11.2 ± 1.8 s for the deoxygenation and PmvO2, respectively). These disparate (TD) responses suggest that the deoxygenation characteristics of Mb extend the TD, thereby increasing the duration (number of contractions) before the onset of muscle deoxygenation. However, this effect was insufficient to increase the mean response time. Somewhat differently, the muscle deoxygenation response measured using near-infrared spectroscopy in the deeper regions (∼5 mm depth) (∼50% type I Mb-rich, highly oxidative fibers) was slower (τ = 42.3 ± 6.6 s; P < 0.05) than the corresponding value for superficial muscle measured using visible light spectroscopy or PmvO2 and can be explained on the basis of known fiber-type differences in PmvO2 kinetics. These data suggest that, within the superficial and also deeper muscle regions, the τ of the deoxygenation signal may represent a useful index of local O2 extraction kinetics during exercise transients.

Near-infrared (NIR) emitting Nd/Yb(iii) complexes sensitized by MLCT states of Ru(ii)/Ir(iii) metalloligands in the visible light region

2015 ◽  
Vol 44 (34) ◽  
pp. 15212-15219 ◽  
Author(s):  
Lu-Yin Zhang ◽  
Ya-Jun Hou ◽  
Mei Pan ◽  
Ling Chen ◽  
Yi-Xuan Zhu ◽  
...  
Keyword(s):  
Visible Light ◽  
Near Infrared ◽  
Visible Light Region ◽  
Light Region ◽  
Nir Emission

Visible light sensitized NIR emission of Nd3+ and Yb3+ by Ru(ii)/Ir(iii) metalloligands is reported.

Visible-light sensitisation of near-infrared luminescence from Yb(iii), Nd(iii) and Er(iii) complexes of 3,6-bis(2-pyridyl)tetrazine

2003 ◽  
pp. 808-814 ◽  
Author(s):  
Nail M. Shavaleev ◽  
Simon J. A. Pope ◽  
Zöe R. Bell ◽  
Stephen Faulkner ◽  
Michael D. Ward
Keyword(s):  
Visible Light ◽  
Near Infrared ◽  
Infrared Luminescence

Monoclinic oxygen-deficient tungsten oxide nanowires for dynamic and independent control of near-infrared and visible light transmittance

2018 ◽  
Vol 5 (2) ◽  
pp. 291-297 ◽  
Author(s):  
Shengliang Zhang ◽  
Sheng Cao ◽  
Tianran Zhang ◽  
Qiaofeng Yao ◽  
Adrian Fisher ◽  
...  
Keyword(s):  
Visible Light ◽  
Tungsten Oxide ◽  
Near Infrared ◽  
Underlying Mechanism ◽  
Single Component ◽  
Light Transmittance ◽  
Independent Control ◽  
Oxide Nanowires ◽  
Electrochromic Material

Independent control of near-infrared and visible light using a single-component electrochromic material and its underlying mechanism are demonstrated.

Heterogeneous integration of Si photodiodes on silicon nitride for near-infrared and visible light detection

2022 ◽  
Author(s):  
Stijn Cuyvers ◽  
Artur Hermans ◽  
Max Kiewiet ◽  
Jeroen Goyvaerts ◽  
Gunther Roelkens ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Visible Light ◽  
Near Infrared ◽  
Heterogeneous Integration ◽  
Light Detection
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