TY - JOUR
T1 - Optical properties of selected 4d and 5d transition metal ion-doped glasses
AU - Wen, Hongli
AU - Cheng, Bing Ming
AU - Tanner, Peter A.
N1 - Funding information:
This work was supported by the Guangdong Natural Science Foundation (No. 2014A030310132) and Guangdong University Students Science and Technology Innovation Cultivation Special Fund (Grant No. pdjh2016b0153), Guangdong University of Technology through the One-Hundred Young Talents Program start-up grant (Grant No. 220413505) and Guangdong University of Technology University Students' Innovation and Entrepreneurship Training Program (Grant No. yj201611845021). We are indebted to Dr Ting Shan for recording the XANES at NSRRC, Hsinchu and for his useful comments.
Publisher Copyright:
© The Royal Society of Chemistry 2017
PY - 2017/1
Y1 - 2017/1
N2 - Selected 4d and 5d transition metal ion-doped lead borate (PbO-B2O3) and sodium borosilicate (SiO2-Na2O-B2O3) glasses have been prepared by the melting-quenching technique and their room temperature optical properties were investigated with a view to future co-doping with lanthanide ions. The oxidation states revealed from the diffuse reflectance spectra, absorption spectra, excitation and emission spectra of the glasses are Nb(v), Ta(v), Mo(v, vi), W(vi), Re(iv, vii), Ru(iii, iv, vi), Rh(iii), and Ir(iii). The Ru, Rh, or Ir ion-doped glasses show distinctive strong absorption bands and a red-shifted absorption edge. Charge transfer emission bands are observed for Nb(v), Ta(v), and Mo(vi) at 474 nm, 420 nm and 553 nm, respectively, whereas no visible emission bands can be attributed to Ru, Rh or Ir species. The X-ray absorption spectra of Mo-doped glasses indicate the predominant tetrahedral Mo(vi) moiety. The presence of intense charge transfer absorption and emission bands for some of the transition metal ions provides us with the vision of energy transfer to co-doped lanthanide ions with the application of downshifted emission for a solar cell.
AB - Selected 4d and 5d transition metal ion-doped lead borate (PbO-B2O3) and sodium borosilicate (SiO2-Na2O-B2O3) glasses have been prepared by the melting-quenching technique and their room temperature optical properties were investigated with a view to future co-doping with lanthanide ions. The oxidation states revealed from the diffuse reflectance spectra, absorption spectra, excitation and emission spectra of the glasses are Nb(v), Ta(v), Mo(v, vi), W(vi), Re(iv, vii), Ru(iii, iv, vi), Rh(iii), and Ir(iii). The Ru, Rh, or Ir ion-doped glasses show distinctive strong absorption bands and a red-shifted absorption edge. Charge transfer emission bands are observed for Nb(v), Ta(v), and Mo(vi) at 474 nm, 420 nm and 553 nm, respectively, whereas no visible emission bands can be attributed to Ru, Rh or Ir species. The X-ray absorption spectra of Mo-doped glasses indicate the predominant tetrahedral Mo(vi) moiety. The presence of intense charge transfer absorption and emission bands for some of the transition metal ions provides us with the vision of energy transfer to co-doped lanthanide ions with the application of downshifted emission for a solar cell.
UR - http://www.scopus.com/inward/record.url?scp=85021689609&partnerID=8YFLogxK
U2 - 10.1039/c7ra04062h
DO - 10.1039/c7ra04062h
M3 - Journal article
AN - SCOPUS:85021689609
SN - 2046-2069
VL - 7
SP - 26411
EP - 26419
JO - RSC Advances
JF - RSC Advances
IS - 42
ER -