作者: Susmita Kundu , Nilanjana Das , Sriparna Chakraborty , Dipten Bhattacharya , Prasanta Kumar Biswas
DOI: 10.1016/J.OPTMAT.2012.12.005
关键词:
摘要: Abstract Sol–gel based nanostructured Cr(III)-doped indium tin oxide (ITO) films (In:Sn:Cr = 84.6:9.4:6.0) deposited on silica glass were cured at 350 °C, 450 °C, 600 °C, 700 °C and 900 °C. EDX, absorption spectra TEM images confirmed formation of ITO nanoclusters close to Bohr radius ITO. Excitonic phonon interactions studied by absorption, photoluminescence (PL) Raman spectra. The photon energy between the satellite peaks PL predicted vibrations. Strong hybridization s–p-states host d-states Cr(III) resulted in stable exciton–phonon coupling as revealed from excitonic lattice Soft room temperature ferromagnetism was observed films.