Сопряжение координатно-чувствительного детектора на основе приборов с зарядовой связью для регистрации ионов с портативным статическим масс-спектрографом

An IDS 2030 IonCCD coordinate-sensitive detector (Analytical/CMS Field Products) is interfaced with a small-sized mass spectrograph developed at the Ioffe Physical Technical Institute, Russian Academy of Sciences. The measurement data obtained with the mass spectrograph using an IonCCD detector and a Magnum-5901-37029PS channel secondary electron multiplier (Photonics USA Inc., United States) are compared. The results of measurements are discussed, and the prospects for using the IonCCD coupled with a microchannel plate are assessed.

The development of thin-film photovoltaic applications based structures on cuinse2 within the triple helix model

This work concentrates on the rewiew of the study of the photoelectrical phenomena of thin films for solar cells and also show the search of a new physical effects, which may be the basis for the development of new technologies, diagnostic methods, new types of photoconverters, and devices on these multinary semiconductors. Solar cells which based on silicon or binary III–V semiconductor compounds and their solid solutions successfully fulfilled their role as the first energy sources in outer space in the 1950s–1990s. Since 1997, technological development has been carried out for amorphous Si, CdTe thin film polycristal and CuInSe2 (CIS) solar cells in the thin film solar cell family. Thin film solar cells based on CuInSe2 and the related materials heretofore have been studied only for the aims of creating efficiencies. Complex physical and technological studies of the thin film solar cells on the basis chalcogenide chalcopyrite materials have made it possible to create devices with high radiation hardness and efficiencies as high as 18% [1-4]. At the same time, basic studies aimed to speed up film deposition is conducted from the aspect of material and substrate technologies for further cost reductions. For CIS solar cells research and development efforts continue to establish both element technologies necessary for the improvement in product quality and efficiency and large-area film fabrication technologies as essential part of the solar cell production process. This study was supported by the contract “Research and Development of Deposition System for CIGS Solar Cell” signed by the Ioffe Physical Technical Institute (Russian Academy of Sciences).

Cigs Thin Film Solar Cells Fabricated on The Various Substrates

Solar cells which based on silicon or binary III–V semiconductor compounds and their solid solutions successfully fulfilled their role as the first energy sources in outer space in the 1950s–1990s. Concentrator cascade of solar cells formed as heterostructures, based on InGaAsP solid solutions grown on germanium substrates, ensured progress in improving their main parameters, such as power density, the ratio of power/weight, and the solar cells operating time, however, the cost of photoconverters drastically increased as a result of these improvements. Evidently, the observed steady increase in the number of launched artificial satellites and a tightening of requirements for the size, weight, and cost of space technology have stimulated a continuous increase in demand for high efficiency solar cells, which are fabricated by low cost technologies and, at the same time, feature low weight parameters.The results of measuring the first spectra of relative quantum efficiency for photoconversion in thin film ZnO/CdS/Cu(In, Ga)Se2/Mo solar cells (CIGS solar cells) fabricated on rigid (glass) and flexible (polyimide) substrates are reported. The character of interband transitions has been studied and the values of the band gap for direct and indirect transitions in thin Cu(In, Ga)Se2 films are determined. It is found that a shift of the maximal photosensitivity for the obtained solar cells to shorter wavelengths is observed as rigid substrates are replaced by flexible ones. It is concluded that thin film Cu(In, Ga)Se2 structures can be used as broad band photoconverters of solar radiation with low costs. This study was supported by the contract “Research and Development of Deposition System for CIGS Solar Cell” signed by the Ioffe Physical Technical Institute (Russian Academy of Sciences).