{"id":4289,"date":"2015-07-09T15:32:17","date_gmt":"2015-07-09T15:32:17","guid":{"rendered":"https:\/\/staging.asminternational.org\/edfas\/results\/-\/journal_content\/56\/10192\/25612640\/NEWS\/"},"modified":"2023-02-07T04:53:15","modified_gmt":"2023-02-07T04:53:15","slug":"photo-doping-of-semiconductor-enables-formation-of-new-material-phases","status":"publish","type":"post","link":"https:\/\/www.asminternational.org\/edfas\/results\/-\/journal_content\/56\/10192\/25612640\/NEWS\/","title":{"rendered":"Photo-doping of semiconductor enables formation of new material phases"},"content":{"rendered":"<p>\n\tResearchers at Michigan State University, East Lansing, report that by shooting an ultrafast laser pulse into a semiconductor, its properties change as if it had been chemically doped. Known as &#8220;photo-doping,&#8221; the laser pulses act like dopants that temporarily weaken the glue that binds charges and ions together. This allows new electronic phases to spontaneously form, producing new properties.<\/p>\n<p>\n\tThe technology involves varying the wavelengths and intensities of the laser pulses. The researchers were able to observe phases with different properties that are captured on the femtosecond timescale. &#8220;The material we studied is an unconventional semiconductor made of alternating atomically thin layers of metals and insulators,&#8221; said Chong-Yu Ruan, an associate professor of physics and astronomy who led the research effort at MSU. &#8220;This combination allows many unusual properties, including highly resistive and also superconducting behaviors to emerge, especially when doped.&#8221;<\/p>\n<p>\n\tPhilip Duxbury, a team member and chairman of the department of physics and astronomy, said ultrafast photo-doping &#8220;has potential applications that could lead to the development of next-generation electronic materials and possibly optically controlled switching devices made of undoped semiconductor materials.&#8221;<\/p>\n<p>\n\t<a href=\"http:\/\/msutoday.msu.edu\/news\/2015\/making-a-better-semiconductor\/\">http:\/\/msutoday.msu.edu\/news\/2015\/making-a-better-semiconductor\/<\/a><\/p>\n<p>\n\t&nbsp;<\/p>\n<p>\n\t&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Researchers at Michigan State University, East Lansing, report that by shooting an ultrafast laser pulse into a semiconductor, its properties change as if it had been chemically doped.<\/p>\n","protected":false},"author":63082,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[450,435,436,1],"tags":[],"class_list":["post-4289","post","type-post","status-publish","format-standard","hentry","category-general","category-news","category-news-articles","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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