Abstract The effect of CdS/ZnS composite-sensitized TiO 2 nanotube array (TNTA) on the photocatalytic reduction CO was studied. quantum dots sensitized TNTA by successive ionic layer adsorption and reaction (SILAR) cycle method, CdS/ZnS-TNTA composite semiconductor materials were prepared. loading amount depends number SILAR cycles. effects times, volume flow, light intensity performance main p...

Semiconductor nanocrystals have been shown to possess unique optical, electrical, and optoelectronic properties for a wide range of applications. In particular, the exploitation of semiconductor nanocrystals, often referred to as quantum dots, in biological applications has increased dramatically because of their unique spectral properties, which enable simultaneous multiplex labeling and detec...

Efficient energy storage systems are recharged from the nano batteries; however, available of present nanomaterial batteries remains capable for many applications due to limited basic charging capacity electrode materials. A cadmium sulfide (CdS) nanocrystal (NCs) or quantum dots (QDs) that was prepared by chemical reaction and were fabricated battery device using PVV / Li: graphite CdS Al. The...

<span>This paper investigates on new design of heterojunction quantum dot (HJQD) photovoltaics solar cells CdS/PbS that is based metallics PbS core/shell absorber layer and window layer. It has been enhanced the performance traditional HJQD thin film model bulk The used sub-micro thickness to achieve high efficiency with material reduction, low cost, time. Metallics-semiconductor succeede...

This paper is dedicated to study the thin polycrystalline films of semiconductor chalcogenide materials (CdS, CdSe, and PbS) obtained by ammonia-free chemical bath deposition. The obtained material is of polycrystalline nature with crystallite of a size that, from a general point of view, should not result in any noticeable quantum confinement. Nevertheless, we were able to observe blueshift of...

The optical-transport properties of 1D Se-doped CdS nanostructures with different doping contents and/or crystallization degrees are reported. The locally excited photoluminescence shows a significant redshift during the transport along the long axis of the 1D structures and can leave enough PL intensity for detection. The magnitude of the redshift is found to be highly dependent on the content...

Staffs of the Semiconductor Electronics Division, the Information Technology Laboratory, and the Precision Engineering Laboratory at NIST, have developed a new generation of prototype Single-Crystal CD (Critical Dimension) Reference (SCCDRM) Materials with the designation RM 8111. Their intended use is calibrating metrology instruments that are used in semiconductor manufacturing. Each referenc...

Abstract Here, a thorough study is reported that exposes the influence of surfactants’ dielectric screening on exciton energy and exciton‐phonon coupling in CdSe CdSe/CdS colloidal quantum dots nanoplatelets. The follows temperature dependence photoluminescence spectrum to monitor thermally activated interactions. exhibits an anomalous point at ≈250 K, which coincides with melting surfactant li...

The mechanical-electrical coupling properties of piezoelectric semiconductors endow these materials with novel device applications in microelectromechanical systems, sensors, human-computer interfaces, etc. When an applied strain is exerted on a piezoelectric semiconductor, piezoelectric charges are generated at the surface or interface of the semiconductor, which can be utilized to control the...

Two methods for the preparation of semiconductor doped sol-gel films, for applications in nonlinear optics, have been studied and compared. In the first, porous films are spun from sols containing the cation precursor, and then reacted with H$S gas, and in the second, the cation is adsorbed onto the pore surfaces of passive films from aqueous solution before the gas reaction. Extensive results ...