title: Unique optical properties of Eu3+doped l-histidine hydrochloride mono hydrate single crystals from low temperature growth technique.
abstract: A low-temperature solution method was utilized to grow single crystals of Eu3+doped 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 Eu3+ions into the lattice was confirmed by functional group analysis using Fourier Transform Infrared (FTIR) spectroscopy. The amount of Eu3+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 of5D0→7F2emission of Eu3+is stronger than that of5D0→7F1emission 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.
authors.affiliation: 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. Electronic address: drkrcr@gmail.com.
authors.forename: K
authors.initials: K
authors.lastname: Ramachandra Rao
authors.affiliation: Department of Physics, Adikavi Nannaya University, Rajamahendravaram, Andhra Pradesh, India.
authors.forename: S
authors.initials: S
authors.lastname: Rajyalakshmi
authors.affiliation: Crystal Growth and Nanoscience Research center, Department of Physics, Government College(Autonomous), Rajamahendravaram, Andhra Pradesh, India.
authors.forename: Ch Satya
authors.initials: CS
authors.lastname: Kamal
authors.affiliation: Anil Neerukonda Institute of Tech. and Science Engineering College, Visakhapatnam 530003, Andhra Pradesh, India.
authors.forename: B
authors.initials: B
authors.lastname: Brahmaji
authors.affiliation: Conn Centre for Renewable Energy Research, University of Louisville, KY 40292, USA.
authors.forename: Jacek B
authors.initials: JB
authors.lastname: Jasinski
authors.affiliation: Crystal Growth and Nanoscience Research center, Department of Physics, Government College(Autonomous), Rajamahendravaram, Andhra Pradesh, India.
authors.forename: T K
authors.initials: TK
authors.lastname: Visweswara Rao
mesh_terms: D003080:Cold Temperature; D003460:Crystallization; D005063:Europium / Q000737:chemistry*; D006639:Histidine / Q000737:chemistry*; D049449:Luminescence; D017711:Nonlinear Dynamics; D055620:Optical Phenomena; D013052:Spectrometry, X-Ray Emission; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
chemical_list: D005063:Europium; D006639:Histidine
keywords: Bulk growth of LHHC; FTIR; HRXRD; NLO; Photoluminescence; SEM