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Credit: Yongsheng Zhao
Photoluminescence (PL) is light emission from a substance after the absorption of photons stimulated by temperature, electricity, pressure, or chemistry doping. An international team of scientists led by Dr. Wenge Yang from Center for High Pressure Science &Technology Advanced Research (HPSTAR) presents a strong tricolor PL achieved in non-PL pyrochlore Ho
2Sn
2O
7 through high pressure treatment. Interestingly the PL can be much enhanced after pressure release and recovered to ambient conditions. Their study is published in the recent issue of
Physical Review Letters.
Photoluminescence materials are widely used in the fields of biochemistry and medicine, which can be used as lasers, anti-counterfeiting labels and sensors. Rare earth pyrochlore has attracted extensive attention for its potential optical properties, stable structure and chemical properties. The luminescence character of pyrochlore mainly comes from rare earth ions.
Potential extreme condition history detector—recoverable PL achieved in pyrochlore phys.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phys.org Daily Mail and Mail on Sunday newspapers.