{"title":"Pyroelectric Crystals","description":null,"products":[{"product_id":"dlatgs-pyroelectric-crystal","title":"DLATGS Pyroelectric Crystal","description":"\u003cp\u003e\u003cstrong\u003eDLATGS Pyroelectric Crystal\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDLATGS crystal is a crystalline material with a pyroelectric effect, which can provide a wide range of infrared radiation from the near-ultraviolet (NUV) light edge of 0.4 μm (~750 THz) to the far-infrared spectrum of 200 μm (~1.5 THz). It has a wide range of uses in aerospace, military, medical, and fire safety fields. TGS (Triglycine Sulfate) is an excellent material for use as a sensitive element in pyroelectric sensors because of its high pyroelectric coefficient, reasonably low dielectric constant, and optimal figure of merit. TGS-based pyroelectric sensors are sensitive to radiation in the wavelength range from ultraviolet to far-infrared and do not require the use of cryogen cooling. The Curie temperature point of TGS is about 47°C. By deuteration of TGS, the Curie temperature can be increased to more than 60°C. When a sufficient amount of L-alanine is incorporated into the crystal, the crystal can lock polarization-the crystals have pyroelectric properties without extra polarization. In addition, after heating the crystal above the Curie temperature, and then cooling below the Curie temperature, the pyroelectric properties can still be restored, therefore the crystal has high stability, is suitable for making pyroelectric devices with stable performance in high working temperature.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePyroelectric detector material for the infrared\u003c\/li\u003e\n\u003cli\u003eSpectral response from 0.4 μm (750 THz) to 200 μm (1.5 THz)\u003c\/li\u003e\n\u003cli\u003eHigh pyroelectric coefficient with a low dielectric constant\u003c\/li\u003e\n\u003cli\u003eHigher figure of merit (M1) than TGS\u003c\/li\u003e\n\u003cli\u003eMuch higher coercive field E0 (900 V\/cm) than TGS or DTGS\u003c\/li\u003e\n\u003cli\u003eUsed in aerospace, military, medical and fire-safety instrumentation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecifications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eDLATGS (L-alanine doped deuterated triglycine sulfate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePyroelectric infrared detector crystal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpectral Response\u003c\/td\u003e\n\u003ctd\u003e0.4 μm (750 THz) to 200 μm (1.5 THz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurie Temperature (DLATGS)\u003c\/td\u003e\n\u003ctd\u003e56 - 58 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoercive Field E0 (DLATGS)\u003c\/td\u003e\n\u003ctd\u003e900 V\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFigure of Merit M1 (DLATGS)\u003c\/td\u003e\n\u003ctd\u003e15 - 16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm\u003c\/td\u003e\n\u003ctd\u003eCustom element, built to specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eComparison of TGS, DTGS and DLATGS\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eTGS\u003c\/th\u003e\n\u003cth\u003eDTGS\u003c\/th\u003e\n\u003cth\u003eDLATGS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTc, °C\u003c\/td\u003e\n\u003ctd\u003e49\u003c\/td\u003e\n\u003ctd\u003e57 - 59\u003c\/td\u003e\n\u003ctd\u003e56 - 58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eε22v at T=25°C (f=1kHz, Ebias=5kV\/cm)\u003c\/td\u003e\n\u003ctd\u003e20 - 40\u003c\/td\u003e\n\u003ctd\u003e17 - 19\u003c\/td\u003e\n\u003ctd\u003e17 - 19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eδ at T=25°C (f=1kHz, Ebias=5kV\/cm)\u003c\/td\u003e\n\u003ctd\u003e(3-4) x 10-3\u003c\/td\u003e\n\u003ctd\u003e(2-3) x 10-3\u003c\/td\u003e\n\u003ctd\u003e(2-3) x 10-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE0 (T=25°C), V\/cm\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 25\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 25\u003c\/td\u003e\n\u003ctd\u003e900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eγ2 (dPS\/dT), Coulomb x cm-2 x K-1\u003c\/td\u003e\n\u003ctd\u003e(3-4) x 10-8\u003c\/td\u003e\n\u003ctd\u003e(2.7-3) x 10-8\u003c\/td\u003e\n\u003ctd\u003e3 x 10-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM1 at T=25°C (dPS\/dT) x ε22-1\u003c\/td\u003e\n\u003ctd\u003e11 - 12\u003c\/td\u003e\n\u003ctd\u003e15 - 16\u003c\/td\u003e\n\u003ctd\u003e15 - 16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eData Sheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0108\/0619\/8330\/files\/dlatgs-pyroelectric-crystal-HJ-spec-sheet.pdf?v=1791905948\" target=\"_blank\"\u003eDLATGS Pyroelectric Crystal (PDF)\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eElements are supplied to drawing - send us your specification for a quotation.\u003c\/p\u003e","brand":"HJ Optronics, Inc.","offers":[{"title":"Default Title","offer_id":67672701927498,"sku":"DLATGS","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0108\/0619\/8330\/files\/dlatgs-pyroelectric-crystal.png?v=1791905953"}],"url":"https:\/\/hjoptronicsinc.com\/collections\/pyroelectric-crystals.oembed","provider":"HJ Optronics, Inc.","version":"1.0","type":"link"}