The response of antenna-coupled thin-film Ni-NiO-Ni diodes to 633-nm helium-neon laser radiation is investigated. Although these detectors and their integrated dipole antennas are optimized for the detection of mid-infrared radiation, a polarization dependence of the measured response to visible radiation is observed. The strongest signals are measured for the polarization parallel to the dipol...

The optical absorption coefficient of graphene will change after injecting carriers. Based on this principle, a high-speed double-layer graphene electro-optic modulator with a ring resonator structure was designed in this paper. From the numerical simulations, we designed a modulator. Its optical bandwidth is larger than 130 GHz, the switching energy is 0.358 fJ per bit, and the driven voltage ...

Bacteriologists have used turbidimetric estimation of bacterial growth for many years. With the advent of the photoelectric and spectrophotometric methods, the precision of such measurements was improved. Gavin (1957) has discussed in detail certain fundamental considerations of the turbimetric method. In common with most growth measurements, final population densities were the common criterion...

Molybdenum disulfide (MoS2) has attracted a great attention as an excellent 2D material for future optoelectronic devices. Here, a novel MoS2 tribotronic phototransistor is developed by a conjunction of a MoS2 phototransistor and a triboelectric nanogenerator (TENG) in sliding mode. When an external friction layer produces a relative sliding on the device, the induced positive charges on the ba...

Abstract The photoelectric characteristic of ITO/PbS quantum dots (QDs)/Al structure based single and hybrid iodine ions(I − ) passivated PbS QDs have been investigated. QDs/Al with I passivation demonstrated a high light dark ratio 565.5 at -2V. It is the result removing more organic ligands on surface introducing larger amount . This work demonstrates that process has great potential in perfo...

Photoelectric dyes absorb light and convert photon energy to electric potentials. To test whether these dyes could be used for retinal prostheses, a simple in vitro screening system was developed. Retinal neurons were cultured from the eyes of chick embryos at the 10-day embryonic stage, at which time no retinal photoreceptor cells have yet developed. Intracellular calcium elevation was observe...

OBJECTIVE To compare rates of nuisance alarms and disconnection between ionization and photoelectric smoke alarms. DESIGN A prospective cohort study. SETTING Four Inupiat Eskimo villages in the Northwest Arctic Borough region of Alaska, 48 km (30 mi) above the Arctic Circle. SUBJECTS Households in 4 communities with similar populations, number of homes, mean income, size of household, and...

The positioning of In0.8Ga0.2As quantum dots (QDs) array in the i-region solar cell (SC) on its photogenerated current and dark saturation currents, which determine operating voltage device, have been investigated. It was found that indicated photoelectric characteristics depend location QD relative to electric field p-n junction. displacement boundary weakly doped base leads a decrease current...

Organic light-emitting devices (OLEDs) have attracted lots of attentions and have been subjects of intensive studies due to their great potential for plat panel display and solid state illumination applications. In this paper, we designed a new type of ultra-thin non doped organic blue electrophosphorescent devices of based on Firpic. We also studied that the impact of object layer thickness fo...