Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Keng-Hoong Yim"'
Publikováno v:
Journal of Chemical Physics; 5/14/2006, Vol. 124 Issue 18, p184706, 8p, 1 Diagram, 1 Chart, 5 Graphs
Publikováno v:
Advanced Functional Materials. 18:2897-2904
The ability to control organic-organic interfaces in conjugated polymer blends is critical for further device improvement. Here, we control the phase separation in blends of poly(9,9-di-n-octylfluorene-alt-benzothiadiazole) (F8BT) and poly(9,9-di-n-o
Autor:
Richard H. Friend, Craig E. Murphy, Gregory L. Whiting, Jonathan Halls, Ji-Seon Kim, Keng-Hoong Yim, Jeremy Burroughes
Publikováno v:
Advanced Materials. 20:3319-3324
Publikováno v:
Advanced Functional Materials. 18:1012-1019
The fabrication of functional multilayered conjugated-polymer structures with well-defined organic-organic interfaces for optoelectronic-device applications is constrained by the common solubility of many polymers in most organic solvents. Here, we r
Autor:
Keng-Hoong Yim, Walter J. Doherty, Craig E. Murphy, Ji-Seon Kim, William R. Salaneck, Richard H. Friend
Publikováno v:
Nano letters. 10(2)
We report laterally and vertically phase-separated thin film structures in conjugated polymer blends created by polymer molecular weight variation. We find that micrometer-scale lateral phase separation is critical in achieving high initial device ef
Autor:
Craig E. Murphy, Alex J.A.B. Seeley, Annamaria Petrozza, Linus Lu, Jérôme Cornil, Richard H. Friend, David Beljonne, Ji-Seon Kim, Paiboon Sreearunothai, Keng-Hoong Yim
Publikováno v:
Journal of the American Chemical Society. 130(39)
We report detailed studies of optoelectronic and charge transport properties at the organic-organic semiconductor interfaces formed between polymer chains (interchain) and within a polymer chain (intrachain). These interfaces are fabricated using pol
Autor:
M. H. Chang, Wilhelm T. S. Huck, Ji-Seon Kim, Keng-Hoong Yim, S.A. Schmid, Richard H. Friend, Laura M. Herz, Zijian Zheng
Publikováno v:
Physical Review B. 77
Time-integrated and femtosecond time-resolved photoluminescence spectroscopy has been used to study the dynamic emission polarization anisotropy for thin films of a conjugated polymer whose chains had been aligned through a nanoimprinting technique.
Autor:
Mark E. Welland, Keng Hoong Yim, Zijian Zheng, Ji-Seon Kim, Richard H. Friend, Wilhelm T. S. Huck, Mohammad S. M. Saifullah
Publikováno v:
Nano letters. 7(4)
We demonstrate the uniaxial alignment of a liquid-crystalline conjugated polymer, poly(9,9-dioctylfluorene-co-benzothiadiazole) (F8BT) by means of nanoconfinement during nanoimprinting. The orientation of the conjugated backbones was parallel to the
Publikováno v:
The Journal of Chemical Physics. 124:184706
Grazing angle photoluminescence (GPL) originates from a waveguided light emitted at grazing angle to the substrate due to the total internal reflections, and the light emission is polarized with enhanced intensity at selective mode wavelength. GPL me
Autor:
Zijian Zheng, Keng-Hoong Yim, Mohammad S. M. Saifullah, Mark E. Welland, Richard H. Friend, Ji-Seon Kim, Wilhelm T. S. Huck
Publikováno v:
Nano Letters; Apr2007, Vol. 7 Issue 4, p987-992, 6p