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Piezoluminescence
Piezoluminescence is a form of luminescence created by pressure upon certain solids. This phenomenon is characterized by recombination processes involving electrons, holes and impurity ion centres.〔N. A. Atari, Piezoluminescence Phenomenon, ''Physics Letters A'' Volume 90, Issues 1–2, 21 June 1982, Pages 93–96.〕 Some piezoelectric crystals give off a certain amount of piezoluminescence when under pressure, as in handheld cigarette lighters when the button is pressed. NaCl, KCl, KBr and polycrystalline chips of LiF (TLD-100) have been found to exhibit piezoluminescent properties.〔On Piezoluminescence in Irradiated Alkali Halides, by A. Al-Hashimi, A.M. Eid, K.V. Ettinger and J.R. Mallard, ''Radiation Protection Dosimetry'' (1983) 6 (1–4): 203–205.〕 It has also been discovered that ferroelectric polymers exhibit piezoluminescence upon the application of stress.〔Reynolds, George (1997). Piezoluminescence from a ferroelectric polymer and quartz. ''Journal of Luminescence'' (Princeton) 75 (4): 295–299.〕
In the folk-literature surrounding psychedelic production, DMT, 5-MeO-DMT, and LSD have been reported to exhibit piezoluminescence. As specifically noted in the book ''Acid Dreams'', it is stated that Augustus Owsley Stansley III, one of the most prolific producers of LSD in the 1960s, observed piezoluminescence in the compound's purest form,〔''Acid Dreams: The Complete Social History of LSD: The CIA, the Sixties, and Beyond'' by Martin A. Lee and Bruce Shlain, pg 174〕 which observation is confirmed by Alexander Shulgin: "A totally pure salt, when dry and when shaken in the dark, will emit small flashes of white light."〔TiHKAL. Alexander and Ann Shulgin. http://www.erowid.org/library/books_online/tihkal/tihkal26.shtml〕
== References ==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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