One effective way to extend the functional degree of freedom for semiconductors is introduce structural defects (e.g., surface or interface) and chemical as they commonly exist modify properties entity. Here, optoelectronic bismuth ferrite thin films their tuning by interface between film strontium titanate substrate are reported. The that have been demonstrated, especially oxygen vacancies, pa...

Abstract The key to designing an implantable device lies in condensing the synergistic effects of diagnostic and therapeutic methods a single tool. In conjunction with integration electrophysiology optical modalities, transparent neural interface alleviates challenges conventional metal-based microelectrodes. this review, multimodal sensing stimulation functionalities recent research are addres...

Abstract Fiber Optic Gyroscope is an angular velocity sensitive device based on Sagnac effect. Super Luminescent Diode (SLD) a widely used light source in fiber optic gyroscope, and its characteristics will directly affect the overall performance of gyroscope. In this paper, working mechanism SLD studied, photoelectric influence temperature driving current center wavelength are analyzed. Accord...

Graphene's unique optoelectronic properties are promising to realize photodetectors with ultrafast photoresponse over a wide spectral range from far-infrared to ultraviolet radiation. The underlying mechanism of the photoresponse has been a particular focus of recent work and was found to be either photoelectric or photo-thermoelectric in nature and enhanced by hot carrier effects. Graphene sup...

In order to solve the question that the photoelectric detection system is vulnerable to environmental factors in complex environment, which affects the detection of target recognition, and then the detection capability of the system is reduced. The double light path detection target recognition method is proposed. This research aims to study the characteristics of output signal that Raindrops a...

The modern photoelectric scintillation detector emerged just 30 years ago out of the rubble of World War II. Kallmann in Germany had the original idea of combining an organic fluor (naphthalene), which is transparent to its fluorescent light, with an electronmultiplier phototube for the detection of single scintillation evants. Hofstadter at Princeton discovered that the inorganic thallium-acti...

Experimental evidence of the photoelectric effect goes back to H. Hertz. It occurred during the famous confirmation experiments of the Maxwellian theory. It is commonly held however that it cannot be explained in the framework of that theory. We are calling attention to some aspects linked with the interpretation of that effect on which, in our opinion, it is worth-

In the course of photoelectric absorption of monoenergetic x-rays, electrons of kinetic energy Ekin=h I+E~ are released from the atoms. The probability w describes the first step of the rearrangement of the atoms towards the original electronic configuration by emission of characteristic x-radiation. Further electrons can be released from the atoms with probability l-u by an emission of one or ...

The photoelectric smoke detector shows different levels of sensitivity to different fire types. The photoelectric detector generally is more sensitive to the gray smoke emitted by smoldering fires, and less sensitive to the black smoke emitted by flaming fires. To improve such a photoelectric detector, the light scattering phenomena by smoke particles have been studied, and numerical simulation...

A series of 24 full-scale experiments was conducted during the summer of 2008 to examine the effects of alarm type (photoelectric, ionization, and dual sensor), alarm location, fabric type (100 % cotton and 100 % polyester), polyurethane foam density, ignition scenario, and room configuration, on smoke alarm performance. A two-level, fractional factorial design of eight experimental configurati...