heterostructure

OPTIMIZATION OF THE PEROVSKITE SOLAR CELL STRUCTURE

An experimental perovskite solar cell (PSC) with the structure Au/Spiro-MeOTAD/CH3NH3PbI3/PEDOT:PSS/ITO was fabricated. The measurements of main photovoltaic characteristics were provided. The current-voltage dependences (I-V curves) were measured conducted in the voltage range from -1V to 1V. During the measurements, the corresponding values were calculated of the short-circuit current density(Jsc) and open-circuit voltage(Uoc) were obtained as 1.23 mA/cm² and 0.19 V, respectively. Subsequently, an analytical model corresponding to this structure was formulated.

Physical Topological Aspects of Modeling Gallium Arsenide Super Beta Transistor for Speed Lic Ofcomputer Systems

Among the semiconductors in latitude use in microelectronics for digital circuits silicon has been and remains the main material. However, today began intensively implemented circuits based on gallium arsenide. Gallium arsenide circuits because of the high charge carrier mobility in GaAs with a frequency range of operation of reach for chips based on silicon (Si).