Influence of Hydrogen plasma on electrical and optical properties of transparent conductive oxides.

2005 ◽  
Vol 862 ◽  
Author(s):  
L. Raniero ◽  
A. Gonçalves ◽  
A. Pimentel ◽  
I. Ferreira ◽  
S. Zhang ◽  
...  

AbstractIn this work we study the optical and electrical behavior of ZnO:Ga, ITO and IZO films deposited on glass after sustaining different hydrogen plasma conditions and exposure times. This work was complemented by analyzing the surface morphology of the set of films, which allow us to determine the role of hydrogen plasma on the film's properties such as Hall mobility, free carrier concentration, sheet resistance, optical transmittance, figure of merit and state of the surface. Apart from that, the performances of solar cells using an intrinsic layer constituted by nanocrystalline silicon will be also presented. The data show that the electrical properties of solar cells were improved by using ZnO:Ga as front contact, allowing a high current density collection and single pin solar cells with efficiencies exceeding 11%.

2020 ◽  
Vol 7 (19) ◽  
pp. 3627-3635 ◽  
Author(s):  
Rui Guo ◽  
Yan He ◽  
Renchao Wang ◽  
Junhua You ◽  
Hongji Lin ◽  
...  

It is increasingly important to develop an efficient OER catalyst that can provide high current density at low overpotentials to improve water splitting efficiency.


2018 ◽  
Vol 10 (35) ◽  
pp. 29954-29964 ◽  
Author(s):  
He Jiang ◽  
Gelei Jiang ◽  
Weiwei Xing ◽  
Weiming Xiong ◽  
Xiaoyue Zhang ◽  
...  

2006 ◽  
Vol 511-512 ◽  
pp. 295-298 ◽  
Author(s):  
L. Raniero ◽  
I. Ferreira ◽  
A. Pimentel ◽  
A. Gonçalves ◽  
P. Canhola ◽  
...  

Author(s):  
O. Nikiforova ◽  
M. Delva

Migraine is one of the most common primary headaches, caused by functional abnormalities of information processing, which can be investigated by neurophysiological means during the various phases of the migraine cycle. The aim of the work was to study neurophysiological changes by means of nociception-specific blink reflex characteristics of trigeminocervical complex and to compare neuro-physiological data with clinical manifestations during various phases of episodic migraine. Methods. A 24-year old female patient with episodic migraine without aura underwent daily nociceptive stimulation of the trigeminal nerve for 30 days. Clinical data were collected directly from the patient using structured questionnaires. Neurophysiological changes were assessed using electromyography study of trigeminocervical blink reflex that was caused by stimulation of the supraorbital nerve with high current density electrode. Results. Within one month, the patient had two migraine attacks, preceded by the prodromal phase, and at the end of both migraine attacks, postdrome symptoms were present. We observed cyclical changes in the characteristics of component R2 of the nociception-specific blink reflex that coincided with clinical manifestations in different phases of the migraine cycle. Conclusions. 1. Electrophysiological excitability of trigeminocervical complex nociceptors differs significantly during different phases of the migraine cycle. 2. The habituation of component R2 is observed in the period between attacks can be considered as a specific phenomenon that probably is the background for migraine attack occurrence. 3. The highest excitability and facilitation of the trigeminocervical complex (increased amplitude and decreased latency of component R2) were observed during ictal phase that is additional evidence of the key role of the brainstem in migraine pathophysiology.


2014 ◽  
Vol 6 (17) ◽  
pp. 15098-15104 ◽  
Author(s):  
Fengyou Wang ◽  
Xiaodan Zhang ◽  
Liguo Wang ◽  
Yanjian Jiang ◽  
Changchun Wei ◽  
...  

2015 ◽  
Vol 139 ◽  
pp. 101-107 ◽  
Author(s):  
Antonin Moreau ◽  
Cristina Insignares-Cuello ◽  
Ludovic Escoubas ◽  
Jean-Jaques Simon ◽  
Verónica Bermúdez ◽  
...  

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