The solubility data of diosgenin in mixed systems of ethanol + 1-propanol (1 : 1), ethanol + 1-butanol (1 : 1), ethanol + isobutyl alcohol (1 : 1), methanol + isobutyl alcohol (1 : 1), methanol + isob...The solubility data of diosgenin in mixed systems of ethanol + 1-propanol (1 : 1), ethanol + 1-butanol (1 : 1), ethanol + isobutyl alcohol (1 : 1), methanol + isobutyl alcohol (1 : 1), methanol + isobutyl alcohol (1 : 4), ethanol + 1-pentanol (1 : 1) and carbon tetrachloride were measured over the temperature range from 289.15 K to 334.15 K by a laser monitoring observation technique at atmospheric pressure, with all mixtures mixed by volume ratio. The Apelblat equation, the ideal solution model, and the 2h equation are used to correlate the solubility data. The results show that the three models agree well with the experimental data, providing essential support for industrial design and further theoretical study.展开更多
The Ce (x nm)/Au (15 nm) stacked layers were used as semitransparent cathodes in the top-emission organic light emitting devices (TOLEDs) fabricated on a p-type silicon anodes and substrate,where x varies from 4...The Ce (x nm)/Au (15 nm) stacked layers were used as semitransparent cathodes in the top-emission organic light emitting devices (TOLEDs) fabricated on a p-type silicon anodes and substrate,where x varies from 4 to 16.The consequence of the Ce layer thickness on transmittance and the device performance were studied when the organic layers NPB (60 nm)/ALQ (60 nm) were kept unchanged,where NPB was N,N'-bis-(1-naphthl)-diphenyl-1,1'-biphenyl-4,4'-diamine,and AlQ is tris-(8-hydroxyquinoline) aluminum.The cathode of Ce (11 nm)/Au (15 nm) has a transparency of 46%,and the TOLED with it achieves the highest luminescence efficiencies:a current efficiency of 0.91 cd/A at 13.7 V and a peak power efficiency of 0.28 lm/W at 9 V.The turn-on voltage is 3.0 V.The Ce/Au cathode is both chemically and electrically stable.展开更多
基金Supported by Science and Technology Breakthrough Major Project in Henan Province(112101210200)
文摘The solubility data of diosgenin in mixed systems of ethanol + 1-propanol (1 : 1), ethanol + 1-butanol (1 : 1), ethanol + isobutyl alcohol (1 : 1), methanol + isobutyl alcohol (1 : 1), methanol + isobutyl alcohol (1 : 4), ethanol + 1-pentanol (1 : 1) and carbon tetrachloride were measured over the temperature range from 289.15 K to 334.15 K by a laser monitoring observation technique at atmospheric pressure, with all mixtures mixed by volume ratio. The Apelblat equation, the ideal solution model, and the 2h equation are used to correlate the solubility data. The results show that the three models agree well with the experimental data, providing essential support for industrial design and further theoretical study.
文摘The Ce (x nm)/Au (15 nm) stacked layers were used as semitransparent cathodes in the top-emission organic light emitting devices (TOLEDs) fabricated on a p-type silicon anodes and substrate,where x varies from 4 to 16.The consequence of the Ce layer thickness on transmittance and the device performance were studied when the organic layers NPB (60 nm)/ALQ (60 nm) were kept unchanged,where NPB was N,N'-bis-(1-naphthl)-diphenyl-1,1'-biphenyl-4,4'-diamine,and AlQ is tris-(8-hydroxyquinoline) aluminum.The cathode of Ce (11 nm)/Au (15 nm) has a transparency of 46%,and the TOLED with it achieves the highest luminescence efficiencies:a current efficiency of 0.91 cd/A at 13.7 V and a peak power efficiency of 0.28 lm/W at 9 V.The turn-on voltage is 3.0 V.The Ce/Au cathode is both chemically and electrically stable.