<span style="font-size:10.0pt;font-family: "Times New Roman";mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Mangal;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language: HI" lang="EN-US">One step synthesis of Cu⁺ activated Li₂BPO₅ low Z phosphor for thermoluminescence dosimetry</span>

Abstract

Cu⁺ activated Li₂BPO₅ phosphor is synthesized by one step wet chemical technique and exposed to gamma-rays of ⁶⁰Co source for their thermoluminescence (TL) properties. The XRD technique shows the crystalline nature of the prepared material. Photoluminescence (PL) emission spectra of Li₂BPO₅:Cu phosphor show the strong prominent peak at 368 nm in the violet region of the visible spectrum assigned to the transition of 3d⁹4s¹↔ 3d¹⁰of Cu⁺ion. Thermoluminescence characterization of prepared Li₂BPO₅:Cu is low Z (Z_eff= 10.29) phosphor shows the prominent TL glow peak at 143<span style="font-family:Symbol;mso-ascii-font-family:" times="" new="" roman";="" mso-hansi-font-family:"times="" roman";mso-char-type:symbol;mso-symbol-font-family:="" symbol"="" lang="EN-GB">°C at higher temperature and intensity is 2.6 times less than that of standard TLD CaSO₄:Dy (Z_eff= 15.3) phosphor, but almost 7.8 times more than that of well known LiF: Mg, Ti low Z phosphor. It may be one of the candidates for thermoluminescence dosimetry (TLD) of ionization radiations.

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