Near-infrared emission in Bi₃ScMo₂O₁₂

Abstract

Near-infrared (NIR) luminescence in Bi₃ScMo₂O₁₂ is reported for the first time. Lanthanides Nd³⁺ and Yb³⁺ are used to obtain near-infrared emission. Characteristic NIR emission from Nd³⁺ was observed in the form of lines around 897 and 1068 nm. Yb³⁺ by itself did not show any PL. However, by virtue of Nd³⁺ → Yb³⁺ energy transfer, characteristic emission of Yb³⁺ could be obtained.

KEYWORDS:

• Molybdate
• photoluminescence
• phosphor
• Nd³⁺ → Yb³⁺ energy transfer

Acknowledgements

We are thankful to the Department of Physics, Shri Shivaji College of Science, Amravati, for the help provided in recording XRD. Figures 2 and 3 are prepared using Vesta software (49). We are grateful to the copyright owners for permitting free use.

Data availability statement

Data will be made available on reasonable request.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Rajani A. Bhoyar

Dr. Rajani Bhoyar has recently obtained her Ph.D. from R.K.D.F. University, Bhopal. She has 6 papers in international journals to her credit. She has participated in several workshops and international conferences. She has worked on luminescence in Scandium Compounds. At present, she is working in Physics Department at VMV Commerce JMT Arts JJP Science College Nagpur Maharashtra India affiliated to Rashtrasant Tukdoji Maharaj Nagpur University Nagpur Maharashtra India.

S. R. Choubey

Dr. Sureshkumar Ramkripal Choubey is an assistant professor and head of physics department in VMV Commerce JMT Arts JJP Science College Nagpur Maharashtra India affiliated to Rashtrasant Tukdoji Maharaj Nagpur University Nagpur Maharashtra India. He published a total of 53 papers in national and international journals and conferences. He has 1 Australian Patent in his account. He authored 10 academic and reference books for engineering and science. He has teaching experience of 23 years to UG and PG. He has research experience of 15 years. He carried out projects for PG students in the field of lighting materials and Ferrite. His field of research expertise is sulphate-based phosphor for lighting and TLD and Ferrite material.

S. P. Wankhede

Dr. Mrs. S. P. Wankhede is working as head of the department of physics at K. D. K. College of College of Engineering, Nagpur. She obtained M.Sc., M.Phil and Ph.D. from RTM Nagpur University. During the tenure of her research work, she was awarded a C.S.I.R. fellowship. She has published many research papers in International/National journals and conferences. She has also worked as a convener for International conferences, FDP and STTP. Her research interests are Synthesis, Characterization, Luminescence and Radiation dosimetry. Along with teaching experience of more than 25 years, she is a Ph.D. supervisor in RTM Nagpur University. Under her guidance, six students have been awarded Ph.D. degrees in RTM Nagpur University till now. She has worked as a principal investigator in three major projects sanctioned by government bodies I.C.M.R. and B.R.N.S. She is the inventor of two patents granted on dosimetry. She wrote two books in physics for engineering students. She is associated with various professional bodies, namely the Indian Society for Technical Education (ISTE), Luminescence Society of India (LSI), Indian Association for Radiation Protection (IARP) B.A.R.C., etc.

P. D. Belsare

Dr. P. D. Belsare is currently working in Shri Ramdeobaba College of Engineering and Management, Nagpur, India. He is working on the development of luminescent materials for various applications. His area of expertise includes the synthesis and characterization of phosphors for radiation dosimetry, solid-state lighting and solar cells. He has over 19 years of professional experience in research and teaching.

S. V. Moharil

Dr. S. V. Moharil obtained his Ph.D. in physics from the department of physics, RTM Nagpur University, Nagpur in 1977 and subsequently, received the highest degree of D.Sc. in 1984 from the same university. He has won several prestigious fellowships such as Research Associates of UGC and CSIR during his research career. He worked as a professor at the department of physics, RTM Nagpur University from 1977 to 2014 and has a long experience of more than 45 years in research and teaching. His area of expertise includes material synthesis and characterization, Luminescence (PL, TL and OSL) and radiation dosimeters. He has more than 300 publications in international journals and 36 students have obtained a doctorate under his guidance. He is also an inventor with 8 patents. He is a reviewer for Elsevier, IOP, Wiley, Springer, Electrochemical Society, RSC and ACS and AIP journals.