Optical properties of 60B2O3â€�??(40â€�?�ð�?��?)PbOâ€�?�ð�?�¥MCl2 and 50B2O3â€�??(50â€�?�ð�?��?) PbOâ€�?�ð�?�¥MCl2 (M = Pb, Cd) glasses

Bulletin of materials science

Shajo Sebastian²  M Abdul Khadar¹ 

[1] Department of Physics, University of Kerala, Kariavattom PO, Thiruvananthapuram 695 581, India$$Department of Physics, University of Kerala, Kariavattom PO, Thiruvananthapuram 695 581, IndiaDepartment of Physics, University of Kerala, Kariavattom PO, Thiruvananthapuram 695 581, India$$;School of Pure and Applied Physics, Mahatma Gandhi University, Priyadarshini Hills PO, Kottayam 686 560, India$$School of Pure and Applied Physics, Mahatma Gandhi University, Priyadarshini Hills PO, Kottayam 686 560, IndiaSchool of Pure and Applied Physics, Mahatma Gandhi University, Priyadarshini Hills PO, Kottayam 686 560, India$$

关键词: Borate glasses;    optical energy gap;    Urbach energy.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Optical absorption and transmittance spectra of 60B₂O₃â€�??(40â€�?�ð�?��?)PbOâ€�?�ð�?�¥MCl₂ and 50B₂O₃â€�??(50â€�?�ð�?��?) PbOâ€�?�ð�?�¥MCl₂ (M = Pb, Cd) (10 â‰�? ð‘�?â‰�? 20) glasses of varying composition were recorded in the UV-visible region. Various optical parameters such as optical energy gap (𝐸_opt), Urbach energy (𝐸_e), refractive index (ð‘�??₀), optical dielectric constant (ðœ�?_∝), and ratio of carrier concentration to the effective mass (ð‘�?/ð‘�?^*) were determined. The variation of optical energy gap with increase in the concentration of PbCl₂ or CdCl₂ is discussed.

【 授权许可】

Unknown