scholarly journals 27.3: Synergistic Improvement of Photoresistance Adhesion for Cu Triple‐Layer Structure

2021 ◽  
Vol 52 (S1) ◽  
pp. 175-176
Author(s):  
Minli Tan ◽  
Jian Liu ◽  
Xiaobo Hu ◽  
Linfeng Liu ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Layer Structure ◽  
Triple Layer

scholarly journals Development of the α-IGZO/Ag/α-IGZO Triple-Layer Structure Films for the Application of Transparent Electrode

Materials ◽  
2017 ◽  
Vol 10 (3) ◽  
pp. 226 ◽  
Author(s):  
Kun-Neng Chen ◽  
Cheng-Fu Yang ◽  
Chia-Ching Wu ◽  
Yu-Hsin Chen
Keyword(s):  
Layer Structure ◽  
Transparent Electrode ◽  
Triple Layer

Si-B Co-Deposition Coatings on an Nb Silicide Based Ultrahigh Temperature Alloy Prepared by Pack Cementation Technique

2011 ◽  
Vol 686 ◽  
pp. 630-636 ◽  
Author(s):  
Yu Zhang ◽  
Xi Ping Guo
Keyword(s):  
Oxidation Resistance ◽  
Layer Structure ◽  
Pack Cementation ◽  
Microstructural Characteristics ◽  
Triple Layer ◽  
Ultrahigh Temperature

In order to improve the oxidation resistance of silicide coatings on an Nb silicide based alloy, Si-B co-deposition coatings were prepared at 1150°C for 8 h by using pack mixtures containing different amounts of B powders. The microstructural characteristics of the coatings were studied. The results showed that all coatings had a triple-layer structure. The middle layers of all coatings were composed of (Nb,X)Si2 (X represents Ti, Cr and Hf elements) and the inner layers of all coatings were composed of (Nb,X)5Si3, but the outer layers of the coatings had different phase constituents and morphologies when the amount of B powders in the pack mixture changed. When the amount of B powders in the pack mixture ranged from 0.5 wt% to 12 wt%, the outer layers were composed of (Nb,X)B2­, with a few CrB2 particles. When the amount of B powders in the pack mixture was in the range of 0.05~0.1 wt%, the outer layers were composed of (Nb,X)B2. However, when the amount of B powders in the pack mixture was in the range of 0.02~0.03 wt%, the outer layers were composed of (Nb,X)Si2, with needle-like (Nb,X)B2 particles dispersed in it.

scholarly journals In situ synchrotron powder diffraction for an ionic conductor transition

2014 ◽  
Vol 70 (a1) ◽  
pp. C1181-C1181
Author(s):  
Hidetaka Kasai ◽  
Kenichi Kato ◽  
Akihiro Hori ◽  
Masaki Takata ◽  
Susumu Kitagawa ◽  
...  
Keyword(s):  
Chemical Reaction ◽  
Powder Diffraction ◽  
Layer Structure ◽  
Electronic Conductivity ◽  
Ionic Conductor ◽  
Atomic Scale ◽  
Structure Evolution ◽  
Triple Layer ◽  
Synchrotron Powder Diffraction

In situ synchrotron X-ray powder diffraction can be one of the most powerful probes to investigate the structure evolution by a chemical reaction thanks to simultaneity of data collection. It is not, however, with ease to produce a homogeneous chemical reaction in the limited spaces, which is essential to see an atomic-scale structure evolution. We have developed an in situ capillary cell for both high-temperature H2reduction and precise humidity control at the SPring-8 BL44B2. We successfully applied this in situ system to an electronic conductor LaSr3Fe3O10, which is transformed into an ionic conductor by the two-step chemical treatments [1]. LaSr3Fe3O10has a triple-layer structure with a FeO6octahedral unit. One triple layer is bonded with another layer through van der Waals interaction. Structure refinements with in situ synchrotron powder diffraction data revealed that the H2reduction at 613 K produced in-plane oxygen vacancies, which resulted in suppression of the interlayer interaction. We found from charge density studies and Raman spectroscopy measurements that the following humidification intercalated H2O and OH-into the interlayer and intralayer, respectively. That means that H2O plays a role for suppression of three-dimensional electronic conductivity, stabilizing the intercalation structure. On the other hand, the OH-ions behave as carriers for ionic conductivity, maintaining the charge neutrality in the intralayer. Finally we determined the composition of the ionic conductor to be LaSr3Fe3O8.0(OH)1.2·2H2O, which indicates a transformation of LaSr3Fe3O10into an OH-ionic conductor. In the presentation, I will discuss the OH-ionic conduction channel based on electrostatic potentials obtained from charge densities.

scholarly journals The Fouling Behavior of Steam Generator Tube at Different Positions in the High-Temperature Water

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 684
Author(s):  
Tong Zhang ◽  
Guihui Qiu ◽  
Hongying Yu ◽  
Peng Zhou ◽  
Shicheng Wang ◽  
...  
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Steam Generator ◽  
Outer Layer ◽  
Layer Structure ◽  
Steam Generator Tube ◽  
Support Plate ◽  
High Temperature Water ◽  
Triple Layer ◽  
Temperature Water

The fouling behavior of a steam generator (SG) tube was investigated at different positions after 500 h of immersion in high-temperature water. A triple-layer structure of fouling appeared at both the crevice position and the free span position, namely, the large, dispersedly distributed deposition layer on the top; the small and faceted outer layer; and the relatively continuous inner layer. There was no obvious positional effect on the thickness of the inner layer. However, in the crevice position, the density of the deposited particle and the thickness of the outer layer was much higher than those of the free span position. The tube support plate (TSP) made of 410 stainless steel contributed significantly to the fouling behavior of the SG tube in the crevice between the SG tube and the TSP.

scholarly journals Enhance the chromatic uniformity and luminous efficiency of WLEDs with triple-layer remote phosphor structures

2020 ◽  
Vol 10 (6) ◽  
pp. 6244
Author(s):  
Nguyen Thi Phuong Loan ◽  
Anh Tuan Le
Keyword(s):  
Layer Structure ◽  
Luminous Flux ◽  
Color Temperature ◽  
Color Quality ◽  
Important Target ◽  
Triple Layer ◽  
Color Uniformity ◽  
Remote Phosphor ◽  
Color Rendering ◽  
Better Than

The angular color uniformity (ACU) with the ability to evaluate chromatic performance of WLED has become an important target to achieve in producing higher-quality WLEDs. This paper studies the ACU enhancing effects of novel triple-phosphor configuration in lighting devices with remote phosphor structure. Moreover, the optical influences of remote phosphor structure with three phosphor layers (TL) on WLEDs properties are calculated and compared to the dual-layer (DL) one for reference. The experiments are applied to devices at 5 distinct correlated color temperature ranging from 5600-8500 K. The results presented that DL structure attains better color rendering index (CRI) than the TL one. Meanwhile, in terms of color quality scales (CQS), TL model shows higher values at all ACCTs, compared to the DL. Moreover, the luminous flux of DL configuration is lower than that of TL structure. In addition, the diversion of color temperature depicts as D-CCT in TL structure is much better than the value in DL structure, especially at high ACCT as 8500 K, which means TL is good for chromatic uniformity of high ACCTs WLEDs. These results proved that the triple-layer structure is superior and more effective to apply for acquiring the enhancement of WLEDs package.

Photocurrent generation by benzoporphyrin films prepared by a solution process

2007 ◽  
Vol 11 (05) ◽  
pp. 383-389 ◽  
Author(s):  
Hiroko Yamada ◽  
Naoko Kamio ◽  
Akihiro Ohishi ◽  
Manami Kawano ◽  
Tetsuo Okujima ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Spin Coating ◽  
Layer Structure ◽  
Solution Process ◽  
Acid Methyl Ester ◽  
Reference Electrode ◽  
Photocurrent Generation ◽  
Oxide Electrodes ◽  
Triple Layer

Tetrabenzoporphyrin films on indium-tin-oxide electrodes were prepared by continuous spin-coating of indium-tin-oxide electrodes with a soluble precursor, tetrabicyclo[2.2.2]octadiene-fused porphyrin, and subsequent thermal conversion of the precursor to tetrabenzoporphyrin by annealing the modified electrodes. When the tetrabenzoporhyrin-modified indium-tin-oxide working electrode was irradiated in a three-electrode system, using Pt as a counter electrode and Ag / Ag + as a reference electrode in the presence of hexyl viologen as an electron acceptor, a cathodic photocurrent was observed. A double layer structure consisting of tetrabenzoporphyrin and [6,6]-phenyl- C 61 butyric acid methyl ester (PCBM) films and a triple layer structure consisting of tetrabenzoporphyrin; a mixture of tetrabenzoporphyrin and PCBM; and PCBM films were also prepared on indium-tin-oxide electrodes by repeated spin-coating. The incident photon to photocurrent efficiency values of up to 6.8% were obtained for the triple layer structure, in which the mixed layer contained tetrabenzoporphyrin and PCBM molecules in a 7:3 ratio. Action spectra of the triple layer structure showed that visible light from 380 to 700 nm sensitized the system for photocurrent generation.

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