Tin telluride Tin telluride Tin telluride is a compound of tin and tellurium (SnTe); is a IV-VI narrow band gap semiconductor and has direct band gap of 0.18 eV. It is often alloyed with lead to make lead tin telluride, which is used as an infrared detector material. Tin telluride normally forms p-type semiconductor (Extrinsic semiconductor) due to tin vacancies and is a low temperature superconductor. SnTe exists in 3 crystal phases. At Low temperatures, where the concentration of hole carriers is less than 1.5x10 cm , Tin Telluride exists in rhombohedral phase also known as α-SnTe. At room temperature and atmospheric
Wedding reception of a couple's entire wedding budget is spent on the reception alone. This is primarily due to the cost of food and alcohol. Wedding traditions vary between countries, and between regions of the same country. Some traditions include: Unless the wedding couple has a wedding registry, it is best not to give gifts or gift certificates. For Chinese weddings, cash or a cheque is always the best gift. In addition to that, some elder relatives might also give gold jewelry. The cash or cheque should be in a red envelope or red pocket with the givers' names on it, and