n-CdO/p-Si heterojunction diode was fabricated using sol-gel spin coating technique which is a low cost and easily scalable method for preparing of semiconductor films. The structural and morphological properties of CdO film were investigated. The X-ray diffraction (XRD) spectra indicated that the film was of polycrystalline nature. The scanning electron microscopy (SEM) images indicate that th...

introduction: the aim of the present in vitro study was to evaluate the disinfection ability of 980-nm diode laser in comparison with sodium hypochlorite (naocl) as a common root canal irrigant in canals infected with enterococcus faecalis ( e. faecalis ). methods and materials: the root canals of 18 extracted single-rooted premolars were prepared by rotary system. after decoronation, the roots...

In 1974, molecular electronics pioneers Mark Ratner and Arieh Aviram predicted that a single molecule could act as a diode, in which electronic current can be rectified. The electronic rectification property of the diode is one of basic functions of electronic components and since then, the molecular diode has been investigated as a first single-molecule device that would have a practical appli...

INTRODUCTION Diode laser with wavelengths ranging from 810 to 980 nm in a continuous or pulsed mode was used as a possible instrument for soft tissue surgery in the oral cavity. DISCUSSION Diode laser is one of laser systems in which photons are produced by electric current with wavelengths of 810, 940 and 980nm. The application of diode laser in soft tissue oral surgery has been evaluated fr...

A simple and elegant method impedance of a typical THz self-complementar to the high-impedance of a nanodiode is propos balanced lines emerging from the antenna feed connect the diode, correct for the reactive c antenna impedance and compensate the parasi the diode. Numerical simulations considering with a metal-insulator-metal diode showed that several kΩ can be effectively matched.

introduction: periodontitis is an inflammatory disease, for which, scaling and root planning (srp) is the common approach for non-surgical control of inflammation. using lasers is another approach in the first phase of periodontal treatment for control of inflammation. diode laser has some beneficial effects such as acceleration of wound healing, promotion of angiogenesis and augmentation of gr...

background: delivering the maximum dose to tumor while achieving the minimum dose delivery to normal tissue; is the most important goal in external radiotherapy. diode in vivo dosimetry is widely considered to be an important tool for quality improvement of patient care in external radiotherapy. uncertainty in dose delivery should fall within 5% of the prescribed dose as recommended by internat...

introduction: pyogenic granuloma (pg) is one of the inflammatory hyperplasia seen in the oral cavity. it is a reactional response to minor trauma or chronic irritation and also might be related to hormonal changes. rarely, pg occurs extragingivally.the most common treatment of pg is surgical excision but alternative approaches such as laser excision have also been proposed. case report : herein...

introduction: the purpose of a desensitizing agent is a permanent coating or filling of dentin surface. morphological analysis in vitro of this treated surface is essential to understand the interaction between desensitizing agent and hypersensitive dentin. the aim was to evaluate the morphology of four dentin surface treated with desensitizing agents. methods: this was an in vitro laboratory s...

This report presents an overview of the Diode Laser; its construction, function and application. Lasers in the form of laser diodes are in widespread use today. Diode lasers are used in a large number of industrial applications; the most prevalent use of the laser diode is probably in CD and DVD drives for computers and audio/video media systems. Diode lasers are also used in many other applica...