Photoluminescence of a mixed Langmuir-Blodgett film of C(60) and stearic acid at room temperature.
pi-A isotherms, transmission electron microscope (TEM), atomic force microscope (AFM) images and photoluminescence spectra of a mixed Langmuir-Blodgett (LB) film of C(60) and stearic acid (SA) deposited on silicon substrate have been measured at room temperature. C(60)/SA nanoparticles aggregated and formed an ordered net-like structure when deposited on silicon substrate. Two PL intense bands centered at 731 and 806nm, respectively, which are rare at room temperature, were obtained. It is supposed that the particular ordered net-like construction of the LB film plays a crucial role in the enhancement of the photoluminescence. The 731nm PL band is related with the aggregation state of the particles and the 806nm PL band is referred as the intrinsic PL spectrum of the C(60).
Liang
Lina
L
Department of Physics, Capital Normal University, Beijing 100037, China.
Fang
Yan
Y
D037741:Fullerenes / Q000737:chemistry*; D049449:Luminescence; D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D013229:Stearic Acids / Q000737:chemistry*; D013696:Temperature
D037741:Fullerenes; D013229:Stearic Acids; C031183:stearic acid