TY - JOUR
T1 - Temperature behaviour of the orange and blue emissions in ZnS:Mn nanoparticles
AU - Su, F. H.
AU - Ma, B. S.
AU - Fang, Z. L.
AU - Ding, K.
AU - Li, G. H.
AU - Chen, W.
PY - 2002/12/2
Y1 - 2002/12/2
N2 - The temperature dependences of the orange and blue emissions in 10, 4.5, and 3 nm ZnS:Mn nanoparticles were investigated. The orange emission is from the 4T1-6A1 transition of Mn2+ ions and the blue emission is related to the donor-acceptor recombination in the ZnS host. With increasing temperature, the blue emission has a red-shift. On the other hand, the peak energy of the orange emission is only weakly dependent on temperature. The luminescence intensity of the orange emission decreases rapidly from 110 to 300 K for the 10 nm sample but increases obviously for the 3 nm sample, whereas the emission intensity is nearly independent of temperature for the 4.5 nm sample. A thermally activated carrier-transfer model has been proposed to explain the observed abnormal temperature behaviour of the orange emission in ZnS:Mn nanoparticles.
AB - The temperature dependences of the orange and blue emissions in 10, 4.5, and 3 nm ZnS:Mn nanoparticles were investigated. The orange emission is from the 4T1-6A1 transition of Mn2+ ions and the blue emission is related to the donor-acceptor recombination in the ZnS host. With increasing temperature, the blue emission has a red-shift. On the other hand, the peak energy of the orange emission is only weakly dependent on temperature. The luminescence intensity of the orange emission decreases rapidly from 110 to 300 K for the 10 nm sample but increases obviously for the 3 nm sample, whereas the emission intensity is nearly independent of temperature for the 4.5 nm sample. A thermally activated carrier-transfer model has been proposed to explain the observed abnormal temperature behaviour of the orange emission in ZnS:Mn nanoparticles.
UR - http://www.scopus.com/inward/record.url?scp=0037011377&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/14/47/336
DO - 10.1088/0953-8984/14/47/336
M3 - Article
AN - SCOPUS:0037011377
SN - 0953-8984
VL - 14
SP - 12657
EP - 12664
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 47
ER -