Optical absorption in SrC4H4O 6·3H2O crystals

2019-08-16 17:17:31

absorption light crystals phonons Patel

责任者: Arora, S.K.;Patel, Vipul;Kothari, Anjana;Chudasama, Bhupendra 单位: Department of Physics, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India 来源出处: Materials Science and Engineering B: Solid-State Materials for Advanced Technology,2004,113(3):263-268 摘要: Study of optical absorption in the gel-grown strontium tartrate trihydrate (STT) single crystals measured in UV-vis range at room temperature reveals transitions involving absorption and emission of phonons. Based on the theory of interband optical absorptions, the electronic transition near the fundamental absorption edge is analysed. Some feeble disorder in the crystal is conceived to be present. The analysis carried out hereunder leads to estimation of energy of the lattice phonons involved. © 2004 Elsevier B.V. All rights reserved. 关键词: Strontium compounds;Single crystals;Light absorption;Light emission;Phonons;Annealing;Nanostructured materials;Thermal effects;Electroceramics;Lattice phonons;Bandgap