Ovshinsky’s pioneering work and inventions in amorphous chalcogenide semiconductor materials in the 1960s invigorated an entire field of physics. The electronic switching he first demonstrated has led to many things, including what many refer to generically as phase change technology. These Ovonic chalcogenide materials are now used in several kinds of devices, primarily optical and electrical ...

Abstract Optical phase shifters constitute the fundamental building blocks that enable programmable photonic integrated circuits (PICs)—the cornerstone of on-chip classical and quantum optical technologies [1, 2]. Thus far, carrier modulation thermo-optical effect are chosen phenomena for ultrafast low-loss shifters, respectively; however, state information they carry lost once power is turned ...

Thermal Energy Storage using phase change materials has become an interesting area of energy research because of its high energy storage density, isothermal nature of storage process and small volume changes. There are wide ranges of phase change materials available commercially. This work deals with paraffin and Palmitic acid eutectic mixture in three different proportions as phase change mate...

MicroEncapsulated Phase Change Materials (MEPCM) are green materials which could be used for thermal energy saving applications in buildings as a non-pollutant method for environmental. PCMs could passively reduce peak cooling loads in hot seasons because of their high energy storage capacities at a constant temperature. Purpose of this paper is manufacturing Microencapsulated PCM (MPCM) pr...