Crystal Growth and Nanoscience Research center, Department of Physics, Government College(Autonomous), Rajamahendravaram, Andhra Pradesh, India; Conn Centre for Renewable Energy Research, University of Louisville, KY 40292, USA.
Department of Physics, Adikavi Nannaya University, Rajamahendravaram, Andhra Pradesh, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2017 Apr 5;176:52-57. doi: 10.1016/j.saa.2016.12.039. Epub 2016 Dec 30.
A low-temperature solution method was utilized to grow single crystals of Eudoped l-histidine hydrochloride monohydrate. The quality of the crystals was confirmed by high-resolution X-ray diffraction measurements with full width at half maximum (FWHM) of rocking curve at 8arc per sec. The incorporation of Eu ions into the lattice was confirmed by functional group analysis using Fourier Transform Infrared (FTIR) spectroscopy. The amount of Eu ions was found to be 0.08 weight (%) using energy dispersive X-ray analysis. The crystal's thermal and mechanical properties were tested as well. The unique spectral properties such as UV-Vis transmittance, nonlinear optical efficiency (NLO), photoluminescence (PL) and its lifetime were measured. The PL study revealed that the intensity of D→F emission of Eu is stronger than that of D→F emission and the decay measurement showed a life time of 7.2410μs. The photoluminescence results prove that l-histidine hydrochloride monohydrate is a new, highly efficient host material for europium ion red emissions.
采用低温溶液法生长了 Eu 掺杂 l-组氨酸盐酸单水合物的单晶。通过高分辨率 X 射线衍射测量，使用 8 弧每秒的半高全宽（FWHM）确定了晶体的质量。使用傅里叶变换红外（FTIR）光谱对功能基团分析证实了 Eu 离子掺入晶格中。使用能量色散 X 射线分析发现 Eu 离子的含量为 0.08 重量（%）。还测试了晶体的热和机械性能。测量了独特的光谱特性，如紫外可见透过率、非线性光学效率（NLO）、光致发光（PL）及其寿命。PL 研究表明，Eu 的 D→F 发射强度强于 D→F 发射强度，衰减测量显示寿命为 7.2410μs。光致发光结果证明，l-组氨酸盐酸单水合物是一种新型的、高效的 Eu 离子红色发光的基质材料。
