Sentences with word «photocurrent»

The upconversion nanorods can preferentially harvest the IR solar photons, followed by the absorption of emitted high - energy photons to generate extra photocurrent in solar cells.

Firstly, it produces under sun light illumination a photovoltage of almost 0.5 volts and very high photocurrent densities of up to 38 mA / cm2; secondly, it acts as a catalyst to accelerate the formation of hydrogen, and finally, it is chemically protected against corrosion as well.

Since TiO2 is transparent, almost all sun light reaches the photoactive chalcopyrite, leading to the observed high photocurrent density and photovoltage comparable with those of a conventional device - grade thin - film solar cell.

Using the photons, they developed a new solar cell structure for generating photocurrents.

The researchers found a substantial light - induced dilation in a molecular material at room temperature, accompanied by simultaneous photocurrent generation.

The group employed photocurrent spectroscopy, along with a magneto - optical cryostat, from the Rana lab.

For that, we anticipate a purely photoelectrical stimulation pathway by capacitive coupling of transient photocurrents instead of direct electronic charge injection.

The result of this screen, Jaws, retained its red - light sensitivity but had a much stronger photocurrent — enough to shut down neural activity.

«Smart new method to manufacture organic solar cells: Asymmetric photocurrent extraction in semitransparent laminated flexible organic solar cells.»

However, these molecules, found in the bacteria Haloarcula marismortui and Haloarcula vallismortis, did not induce a strong enough photocurrent — an electric current in response to light — to be useful in controlling neuron activity.

We then measure band gap energy to within ± 0.01 eV as well as determine whether the electronic transition is direct or indirect with our custom - built photocurrent spectroscopy system.

We then determine the conduction / valence band edge alignment by measuring the flatband potential across a range of electrolytes with varying pHs using three different techniques; photocurrent onset, VOC under intense illumination, and Mott - Schottky analysis.

«Loss mitigation in plasmonic solar cells: aluminium nanoparticles for broadband photocurrent enhancements in GaAs photodiodes» is published by N P Hylton et al in Nature Scientific Reports doi: 10.1038 / srep02874

The combination of the two delivers a water - splitting photocurrent density of around 10 milliamperes per square centimeter, corresponding to a solar - to - hydrogen efficiency of 12.3 %.

Using photoconductive atomic force microscopy to study the structures of the cells at the nanoscale level, the researchers were able to map photocurrent generation and open circuit voltage in the active layer of the solar cell — two properties that affect the conversion efficiency.

[2] While the amplitude of the capacitive transient photocurrent is easily exceeding the cellular stimulation threshold, we identify its duration to be well below this threshold.

As an absorber of visible light, gallium phosphide can make use of a greater number of available solar photons than semiconductors that absorb ultraviolet light, which means it is capable of producing significantly higher photocurrents and rates of fuel production.

«This new class of plasmonic transceivers is based on the mechanism generating photocurrent, i.e. direct signal conversion at metallic interfaces with optical frequencies.

They can contribute to photocurrent in a photovoltaic (PV) device or radiatively recombine efficiently for light - emission applications.

Shining light on a semiconductor can also induce a current to flow, called a photocurrent.

Since the pulse duration appears to be inherently limited by the transient nature of the photocurrent, we tend to rule out the feasibility of the capacitive coupling approach for retinal prosthetic devices, but still emphasize the future perspective of electronically coupling photovoltaic photoreceptors based on soft organic materials.

One of the main issues of this junction that prevented the construction of a marketable devices is, however, the photocurrent temporal stability.

Chuong set out to improve the photocurrent by looking for relatives of these proteins and testing their electrical activity.

We measure incident photon - to - current efficiency (IPCE) to get a wavelength - dependent conversion efficiency that can be integrated over a reference spectrum (AM1.5 G) to corroborate the photocurrents obtained under broadband illumination.