Direct observation of the variation of energy levels in powdered titanium dioxide as a function of temperature. Beneficial effects for energy conversion through semiconductor devices

1985 ◽  
Vol 89 (12) ◽  
pp. 2437-2439 ◽  
Author(s):  
J. Kiwi
Keyword(s):  
Titanium Dioxide ◽  
Energy Conversion ◽  
Direct Observation ◽  
Semiconductor Devices ◽  
Energy Levels ◽  
Beneficial Effects ◽  
Powdered Titanium

Unveiling General Rules Governing Dimensional Evolution of Branched TiO2 and Impacts on Photo-electrochemical Behaviours

2021 ◽  
Author(s):  
Teera Butburee ◽  
Yang Bai ◽  
Lianzhou Wang
Keyword(s):  
Titanium Dioxide ◽  
Energy Conversion ◽  
Charge Transport ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
General Rules ◽  
Branched Nanostructures

Branched nanostructures represent a unique group of nanoarchitectures exhibiting advantageous high surface area and excellent charge transport for energy conversion application compared to their bulk counterparts. Especially, branched titanium dioxide...

Titanium dioxide nanotube membranes for solar energy conversion: effect of deep and shallow dopants

2017 ◽  
Vol 19 (15) ◽  
pp. 10042-10050 ◽  
Author(s):  
Yuchen Ding ◽  
Prashant Nagpal
Keyword(s):  
Titanium Dioxide ◽  
Solar Energy ◽  
Energy Conversion ◽  
Solar Energy Conversion ◽  
Nanotube Membranes

Here we show the effect of shallow and deep dopants on titanium dioxide (TiO2) nanotube membranes, for applications in photocatalytic, photoelectrochemical, photovoltaic, and other photosensitized devices for converting light into chemical feedstocks or electricity.

Chronic treatment with a tryptophan-rich protein hydrolysate improves emotional processing, mental energy levels and reaction time in middle-aged women

2015 ◽  
Vol 113 (2) ◽  
pp. 350-365 ◽  
Author(s):  
M. H. Mohajeri ◽  
J. Wittwer ◽  
K. Vargas ◽  
E. Hogan ◽  
A. Holmes ◽  
...  
Keyword(s):  
Emotional Processing ◽  
Mood State ◽  
Protein Hydrolysate ◽  
Energy Levels ◽  
Reaction Times ◽  
High Energy ◽  
Daily Consumption ◽  
Beneficial Effects ◽  
The Brain ◽  
Facial Emotional Expression

Common pharmacological treatments of mood disorders aim to modulate serotonergic neurotransmission and enhance serotonin levels in the brain. Brain serotonin levels are dependent on the availability of its food-derived precursor essential amino acid tryptophan (Trp). We tested the hypothesis that delivery of Trp via food may serve as an alternative treatment, and examined the effects of a Trp-rich, bioavailable dietary supplement from egg protein hydrolysate on cognitive and emotional functions, mood state, and sleep quality. In a randomised, placebo-controlled, parallel trial, fifty-nine mentally and physically healthy women aged 45–65 years received placebo (n 30) or the supplement (n 29) (both as 0·5 g twice per d) for 19 d. Emotional processing was significantly changed by supplementation, exhibiting a shift in bias away from negative stimuli. The results for the Affective Go/No-Go Task exhibited a slowing of responses to negative words, suggesting reduced attention to negative emotional stimuli. The results for the Facial Emotional Expression Rating Task also supported a shift away from attention to negative emotions and a bias towards happiness. An increase in arousal-like symptoms, labelled ‘high energy’, shorter reaction times and a slight benefit to sustained attention were observed in the treated subjects. Finally, when the supplement was taken 60–90 min before bedtime, a feeling of happiness before going to bed was consistently reported. In summary, daily consumption of a low-dose supplement containing bioavailable Trp may have beneficial effects on emotional and cognitive functions.

Direct observation of thermoacoustic energy conversion

2006 ◽  
Vol 120 (5) ◽  
pp. 3338-3338
Author(s):  
Yusuke Tashiro ◽  
Tetsushi Biwa ◽  
Taichi Yazaki
Keyword(s):  
Energy Conversion ◽  
Direct Observation

Influence of Additive on the Performance of Energy Conversion Solar Cell

2013 ◽  
Vol 594-595 ◽  
pp. 980-984
Author(s):  
Nur Munirah Abdullah ◽  
Anika Zafiah M. Rus ◽  
M.F.L. Abdullah
Keyword(s):  
Particle Size ◽  
Titanium Dioxide ◽  
Solar Cell ◽  
Energy Conversion ◽  
Dye Sensitized Solar Cell ◽  
Hydroxyl Groups ◽  
High Porosity ◽  
Dye Sensitizer ◽  
Dye Sensitized ◽  
High Interaction

Dye-sensitized solar cell (DSSC) of natural dyes from local fruits which consist of the carbonyl and hydroxyl groups of anthocyanin molecule influences the performance of photosensitized effect due to high interaction on the surface of filler. The study is based on Titanium Dioxide, TiO2; U1and U2 (without and with additive respectively), treated TiO2 with ultrasonic; U3 and U4 (without and with additive respectively). The additive for electrolyte, KI3 gives effects on the rate of electron injection to the oxidized dye sensitizer. Of treated TiO2 with ultrasonic was reduced the particle size agglomeration from 0.37 μm down to 0.15 μm. This contributes to a better sponge like with high porosity in order to absorb more anchorage dye sensitizer. Treated U4 with addition of additive for electrolyte gives, Voc=0.74228 V, Isc=0.36 mA, FF=57.0124 gives 0.039% of efficiency.

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