Shih-Chun Lo - Academia.edu (original) (raw)
Papers by Shih-Chun Lo
Advanced Functional Materials
Chemistry – A European Journal
Advanced Optical Materials
Dyes and Pigments, 2017
3D excitation-emission spectroscopy disentangles the spectroscopic properties of aggregates and n... more 3D excitation-emission spectroscopy disentangles the spectroscopic properties of aggregates and non-aggregates of DPPs based dimers,
Chem. Sci., 2016
A single component electrochemiluminescence system from which red, green, blue or white emission ... more A single component electrochemiluminescence system from which red, green, blue or white emission can be obtained, depending on the applied potential or the mode of the ECL experiment, is described.
Organic Field-Effect Transistors XIV; and Organic Sensors and Bioelectronics VIII, 2015
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Advanced materials (Deerfield Beach, Fla.), Jan 22, 2015
A solution-processable dibromoindigo with an alkyoxyphenyl solubilizing group is developed and us... more A solution-processable dibromoindigo with an alkyoxyphenyl solubilizing group is developed and used as a new electron acceptor in organic photodiodes. The solution-processed fullerene-free organic photodiodes show an almost spectrally flat response with a high responsivity (0.4 A W(-1) ) and a high detectivity (1 × 10(12) Jones). These values are comparable to silicon-based photodiodes.
Journal of Materials Chemistry, 2009
Advanced Optical Materials, 2015
Advanced Optical Materials, 2015
Advanced Optical Materials, 2014
1 wileyonlinelibrary.com COMMUNICATION metrology, photometry and position sensing. However, these... more 1 wileyonlinelibrary.com COMMUNICATION metrology, photometry and position sensing. However, these devices involve the deposition of multiple layers (up to 32 layers) and require the use of the expensive molecular beam technique. Recently, solution-processed small molecular or non-polymeric OPDs have also been demonstrated. However, the performance thus far has fallen behind their polymeric and/or evaporated small-molecular counterparts, especially in terms of detectivity, broad spectral response, and responsivity.
Journal of the American Chemical Society, 2009
Solution-processable blue phosphorescent emitters with high luminescence efficiency are highly de... more Solution-processable blue phosphorescent emitters with high luminescence efficiency are highly desirable for large-area displays and lighting applications. This report shows that when a fac-tris[1-methyl-5-(4-fluorophenyl)-3-n-propyl-1H-[1,2,4]triazolyl]iridium(III) complex core is encapsulated by rigid high-triplet-energy dendrons, both the physical and photophysical properties can be optimized. The high-triplet-energy and rigid dendrons were composed of twisted biphenyl dendrons with the twisting arising from the use of tetrasubstituted branching phenyl rings. The blue phosphorescent dendrimer was synthesized using a convergent approach and was found to be solution-processable and to possess a high glass transition temperature of 148 degrees C. The dendrimer had an exceptionally high solution photoluminescence quantum yield (PLQY) of 94%, which was more than three times that of the simple parent core complex (27%). The rigid and high-triplet-energy dendrons were also found to control the intermolecular interactions that lead to the quenching of the luminescence in the solid state, and the film PLQY was found to be 60% with the emission having Commission Internationale de l'Eclairage coordinates of (0.16, 0.16). The results demonstrate that dendronization of simple chromophores can enhance their properties. Single layer neat dendrimer organic light-emitting diodes (OLEDs) had an external quantum efficiency (EQE) of 0.4% at 100 cd/m(2). Bilayer devices with an electron transport layer gave improved EQEs of up to 3.9%. Time-resolved luminescence measurements suggest that quenching of triplets by the electron transport layer used in the bilayer OLEDs limits performance.
Chemistry of Materials, 2006
We report a new family of homoleptic iridium(III) complexes that emit blue phosphorescence at roo... more We report a new family of homoleptic iridium(III) complexes that emit blue phosphorescence at room temperature. The iridium(III) complexes are comprised of phenyltriazole ligands and were easily prepared via short synthetic routes. The parent fac-tris(1-methyl-5-phenyl-3-...
Advanced Materials, 2002
in ethanol benefits a remarkable development of microporosity upon compression. Thus, the micropo... more in ethanol benefits a remarkable development of microporosity upon compression. Thus, the micropore volume of eth-SWNH-50 is twice that of pristine material. For the oxidized SWNHs (O 2 -ox-SWNH and H 2 O 2 -ox-SWNH) the surface area increases slightly after compression. The dependence of the mesopore volume on the liquid used for the SWNHs dispersion is complex. There is a significant decrease in the mesopore volume for the compressed gl-SWNH. However, the compression of eth-SWNHs does not change the mesopore volume, although it alters the mesopore size distribution as shown above.
Advanced Functional Materials
Chemistry – A European Journal
Advanced Optical Materials
Dyes and Pigments, 2017
3D excitation-emission spectroscopy disentangles the spectroscopic properties of aggregates and n... more 3D excitation-emission spectroscopy disentangles the spectroscopic properties of aggregates and non-aggregates of DPPs based dimers,
Chem. Sci., 2016
A single component electrochemiluminescence system from which red, green, blue or white emission ... more A single component electrochemiluminescence system from which red, green, blue or white emission can be obtained, depending on the applied potential or the mode of the ECL experiment, is described.
Organic Field-Effect Transistors XIV; and Organic Sensors and Bioelectronics VIII, 2015
[
Advanced materials (Deerfield Beach, Fla.), Jan 22, 2015
A solution-processable dibromoindigo with an alkyoxyphenyl solubilizing group is developed and us... more A solution-processable dibromoindigo with an alkyoxyphenyl solubilizing group is developed and used as a new electron acceptor in organic photodiodes. The solution-processed fullerene-free organic photodiodes show an almost spectrally flat response with a high responsivity (0.4 A W(-1) ) and a high detectivity (1 × 10(12) Jones). These values are comparable to silicon-based photodiodes.
Journal of Materials Chemistry, 2009
Advanced Optical Materials, 2015
Advanced Optical Materials, 2015
Advanced Optical Materials, 2014
1 wileyonlinelibrary.com COMMUNICATION metrology, photometry and position sensing. However, these... more 1 wileyonlinelibrary.com COMMUNICATION metrology, photometry and position sensing. However, these devices involve the deposition of multiple layers (up to 32 layers) and require the use of the expensive molecular beam technique. Recently, solution-processed small molecular or non-polymeric OPDs have also been demonstrated. However, the performance thus far has fallen behind their polymeric and/or evaporated small-molecular counterparts, especially in terms of detectivity, broad spectral response, and responsivity.
Journal of the American Chemical Society, 2009
Solution-processable blue phosphorescent emitters with high luminescence efficiency are highly de... more Solution-processable blue phosphorescent emitters with high luminescence efficiency are highly desirable for large-area displays and lighting applications. This report shows that when a fac-tris[1-methyl-5-(4-fluorophenyl)-3-n-propyl-1H-[1,2,4]triazolyl]iridium(III) complex core is encapsulated by rigid high-triplet-energy dendrons, both the physical and photophysical properties can be optimized. The high-triplet-energy and rigid dendrons were composed of twisted biphenyl dendrons with the twisting arising from the use of tetrasubstituted branching phenyl rings. The blue phosphorescent dendrimer was synthesized using a convergent approach and was found to be solution-processable and to possess a high glass transition temperature of 148 degrees C. The dendrimer had an exceptionally high solution photoluminescence quantum yield (PLQY) of 94%, which was more than three times that of the simple parent core complex (27%). The rigid and high-triplet-energy dendrons were also found to control the intermolecular interactions that lead to the quenching of the luminescence in the solid state, and the film PLQY was found to be 60% with the emission having Commission Internationale de l'Eclairage coordinates of (0.16, 0.16). The results demonstrate that dendronization of simple chromophores can enhance their properties. Single layer neat dendrimer organic light-emitting diodes (OLEDs) had an external quantum efficiency (EQE) of 0.4% at 100 cd/m(2). Bilayer devices with an electron transport layer gave improved EQEs of up to 3.9%. Time-resolved luminescence measurements suggest that quenching of triplets by the electron transport layer used in the bilayer OLEDs limits performance.
Chemistry of Materials, 2006
We report a new family of homoleptic iridium(III) complexes that emit blue phosphorescence at roo... more We report a new family of homoleptic iridium(III) complexes that emit blue phosphorescence at room temperature. The iridium(III) complexes are comprised of phenyltriazole ligands and were easily prepared via short synthetic routes. The parent fac-tris(1-methyl-5-phenyl-3-...
Advanced Materials, 2002
in ethanol benefits a remarkable development of microporosity upon compression. Thus, the micropo... more in ethanol benefits a remarkable development of microporosity upon compression. Thus, the micropore volume of eth-SWNH-50 is twice that of pristine material. For the oxidized SWNHs (O 2 -ox-SWNH and H 2 O 2 -ox-SWNH) the surface area increases slightly after compression. The dependence of the mesopore volume on the liquid used for the SWNHs dispersion is complex. There is a significant decrease in the mesopore volume for the compressed gl-SWNH. However, the compression of eth-SWNHs does not change the mesopore volume, although it alters the mesopore size distribution as shown above.