{"product_id":"3b-scientific-experiment-hall-effect-in-semiconductors-basic-equipment","title":"3B Scientific Experiment: Hall Effect in Semiconductors Basic equipment","description":"\u003ch2\u003e3B Scientific Experiment: Hall Effect in Semiconductors Basic equipment Features:\u003c\/h2\u003e\n\u003cp\u003eObjective: Investigating electrical conduction mechanisms in doped germanium with the Hall effect\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe Hall effect occurs in electrically conductive materials located in a magnetic field \u003c\/span\u003e\u003cem\u003eB\u003c\/em\u003e\u003cspan\u003e. The Hall voltage’s sign changes depending on whether the same current \u003c\/span\u003e\u003cem\u003eI\u003c\/em\u003e\u003cspan\u003e is borne by positive or negative charge carriers. Its value depends on the charge carrier density. The Hall effect is consequently an important means of determining the mechanisms of charge transport in doped semiconductors. In this experiment, doped germanium crystals are examined at temperatures between 300 K and 450 K to ascertain the differences between electrical conduction enabled by doping, and intrinsic conduction enabled by thermal activation of electrons causing their transfer from the valence band into the conduction band.\u003c\/span\u003e\u003c\/p\u003e","brand":"3B Scientific","offers":[{"title":"115V 50\/60 Hz","offer_id":68087238852860,"sku":"8000727","price":6612.0,"currency_code":"USD","in_stock":true},{"title":"230V 50\/60 Hz","offer_id":68087238885628,"sku":"8000728","price":6841.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0559\/9484\/3286\/files\/3BScientificExperimentHallEffectinSemiconductorsBasicequipment.jpg?v=1794058780","url":"https:\/\/www.american-hospitalsupply.com\/products\/3b-scientific-experiment-hall-effect-in-semiconductors-basic-equipment","provider":"American Hospital Supply","version":"1.0","type":"link"}