Tin telluride wavelength range. The alloyed material has been used in mid- IR photodetectors and thermoelectric generator. 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 ,
Arena Naucalpan 15th Anniversary Show Anniversary Show is the fourth oldest still ongoing annual show in professional wrestling, the only annual shows that older are the Consejo Mundial de Lucha Libre Anniversary Shows (started in 1934), the Arena Coliseo Anniversary Show (first held in 1943), and the "Aniversario de Arena México" (first held in 1957). The Arena Naucalpan 15th Anniversary Show was organized by Alfonso Moreno and featured a large number of wrestlers from Consejo Mundial de Lucha Libre (CMLL), who allowed Moreno to book their wrestlers on a regular basis and in this case also sanctioned a match for the CMLL World Middleweight Championship.