scholarly journals Exploiting In Situ Redox and Diffusion of Molybdenum to Enable Thin-Film Circuitry for Low-Cost Wireless Energy Harvesting

2018 ◽  
Vol 29 (5) ◽  
pp. 1806002 ◽  
Author(s):  
Youngbae Son ◽  
Rebecca L. Peterson
2015 ◽  
Vol 17 (34) ◽  
pp. 22235-22242 ◽  
Author(s):  
Shan Yang ◽  
Binggong Yan ◽  
Tao Li ◽  
Jing Zhu ◽  
Li Lu ◽  
...  

Band-excitation Electrochemical Strain Microscopy (BE-ESM) imaging and diffusion coefficient mapping of Li-rich cathode film.


1997 ◽  
Vol 482 ◽  
Author(s):  
W. A. Doolittle ◽  
T. Kropewnicki ◽  
C. Carter-Coman ◽  
S. Stock ◽  
P. Kohl ◽  
...  

AbstractThe GaN on LGO system is the near perfect template (due to extremely high etch selectivity) for developing a viable thin film/compliant GaN substrate. Herein, we report on our efforts to grow GaN on LGO, including improvement of the microscopic surface morphology using pre-growthpretreatments. We also report on the first transferred thin film GaN substrate grown on LGO, transferred off of LGO, and mounted on GaAs. With this approach, (InAl)GaN alloys can be grown on thin GaN films, implementing a truly “compliant” substrate for the nitride alloy system. In addition, the flexibility of bonding to low cost Si, metal or standard ceramic IC packages is an attractive alternative to SiC and HVPE GaN substrates for optimizing cost verses thermal conductivity concerns. We have demonstratedhigh quality growth of GaN on LGO. X-Ray rocking curves of 145 arc-seconds are obtained with only a 0.28 μm thick film. We present data on the out of plane crystalline quality of GaN/LGO material. Likewise, we show 2 orders of magnitude improvement in residual doping concentration and factors of 4 improvement in electron mobility as compared to the only previously reported electrical data. We show substantial vendor to vendor and intra-vendor LGO material quality variations. We have also quantified the desorption of Ga and Li from the surface of LGO at typical growth temperatures using in situ desorption mass spectroscopy and XPS.


Author(s):  
Wengao Pan ◽  
Xiaoliang Zhou ◽  
Qingping Lin ◽  
Jie Chen ◽  
Lei Lu ◽  
...  

Thin film transistors (TFT) with low cost, high mobility and low processing temperature are key enablers for practical application, which are always contradictory. In this work, we achieved high performance...


RSC Advances ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 4108-4115 ◽  
Author(s):  
Lianbo Zhao ◽  
Yunxiang Di ◽  
Chang Yan ◽  
Fangyang Liu ◽  
Zhu Cheng ◽  
...  

The semiconductor SnS is a promising candidate for low cost earth-abundant photovoltaic absorbing layers and presents some interesting challenges in single phase material preparation.


2013 ◽  
Vol 14 (3) ◽  
pp. 775-781 ◽  
Author(s):  
Yaorong Su ◽  
Mingdong Wang ◽  
Fangyan Xie ◽  
Jian Chen ◽  
Weiguang Xie ◽  
...  

Author(s):  
T. P. Nolan

Thin film magnetic media are being used as low cost, high density forms of information storage. The development of this technology requires the study, at the sub-micron level, of morphological, crystallographic, and magnetic properties, throughout the depth of the deposited films. As the microstructure becomes increasingly fine, widi grain sizes approaching 100Å, the unique characterization capabilities of transmission electron microscopy (TEM) have become indispensable to the analysis of such thin film magnetic media.Films were deposited at 225°C, on two NiP plated Al substrates, one polished, and one circumferentially textured with a mean roughness of 55Å. Three layers, a 750Å chromium underlayer, a 600Å layer of magnetic alloy of composition Co84Cr14Ta2, and a 300Å amorphous carbon overcoat were then sputter deposited using a dc magnetron system at a power of 1kW, in a chamber evacuated below 10-6 torr and filled to 12μm Ar pressure. The textured medium is presently used in industry owing to its high coercivity, Hc, and relatively low noise. One important feature is that the coercivity in the circumferential read/write direction is significandy higher than that in the radial direction.


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