The crystal structure of 1,4,8,11,15,18,22,25-octa-butyloxyphthalocyanine was determined by X-ray diffraction methods. The crystal is of triclinic, space group P 1 with a = 14.0780(3), b = 14.3480(4), c = 17.0090(2) ...The crystal structure of 1,4,8,11,15,18,22,25-octa-butyloxyphthalocyanine was determined by X-ray diffraction methods. The crystal is of triclinic, space group P 1 with a = 14.0780(3), b = 14.3480(4), c = 17.0090(2) A, α = 72.156(2), β = 86.193(2), r= 73.655(2)°, C64H82N8O8, Mr = 1091.38, Z = 2, V = 3137.5(1) A3, Dc= 1.155 g/cm3, F(000) = 1172, μ(MoKα) = 0.077 mm-1, the final R = 0.0787 and wR = 0.2240 for 5795 observed reflections with I ≥ 2σ(I). The steric congestion between the neighboring butyloxy groups distorts the core of phthalocyanine into a saddle shape conformation. In the crystal lattice, molecules overlap to each other with π-π interaction but the extent of overlap is different along the three axial directions.展开更多
Crystal structure of ethanol coordinated 1,8,15,22-tetra(2,2,4-trimethyl-3-pentoxy) phthalocyaninatocobalt (C64H80N8O4Co2C2H5OH, Mr = 1176.43) was determined by X-ray diffrac- tion methods. The crystal is of monoclini...Crystal structure of ethanol coordinated 1,8,15,22-tetra(2,2,4-trimethyl-3-pentoxy) phthalocyaninatocobalt (C64H80N8O4Co2C2H5OH, Mr = 1176.43) was determined by X-ray diffrac- tion methods. The crystal is of monoclinic, space group P21/c with a = 16.4294(4), b = 8.0560(2), c = 24.3654(7) ? ?= 98.3680(8)? Z = 2, V = 3190.6(1) ?, Dc = 1.225 g/cm3, F(000) = 1262, (MoK? = 0.326 mm-1, the final R = 0.0865 and wR = 0.2737 for 4787 observed reflections with I ≥ 2(I). The bulky branched alkyloxy substituents lead to a one structural isomer and space the phthalocyanine molecules where two ethanol molecules coordinate to the cobalt atom from two sides of each molecule.展开更多
The creation of Au/CuPe/Al/CuPc/strueture is a perpendicular type electricity found in the channel of organic static induction transistor. In the following we analyze transistor operation characteristics and machine s...The creation of Au/CuPe/Al/CuPc/strueture is a perpendicular type electricity found in the channel of organic static induction transistor. In the following we analyze transistor operation characteristics and machine structural relation. The results express that the transistor drives the voltage low and has no-saturation currentvoltage characteristics. Its operation characteristics are dependant on gate bias voltage and the construction of the aluminum eleetrode. The vertical ehannel of organic static induction transistor （OSIT） , with structure of Au/CuPc/Al/CuPc/ Cu, has been determined. According to the test results, the relation of its operation characteristics aud device structure was analyzed. The results show that this transistor has a low driving voltage and unsaturation Ⅰ-Ⅴ characteristies. Its operation characteristics are dependant on gate bias voltage and the structure of the aluminum electrode.展开更多
We herein report the effective performance enhancement of the pentacene-based organic thin film transistors with silicon di- oxide dielectric by inserting a thin metal phthalocyanines interlayer between Au source/drai...We herein report the effective performance enhancement of the pentacene-based organic thin film transistors with silicon di- oxide dielectric by inserting a thin metal phthalocyanines interlayer between Au source/drain electrodes and the pentacene active layer. The threshold voltage decreased remarkably from ca. -20 V to a few volts （below -7.6 V） while the mobility in- creased 1.5-3 times after the insertion of the interlayer of only ca. 2 nm, which could be attributed to the reduction of the car- tier injection barrier. The results suggest a simple and effective way to achieve low-threshold-voltage pentacene-based organic thin film transistors with high mobility on silicon dioxide dielectric.展开更多
基金Support to this work was provided by Science Foundation of Fujian provincethe Test Foundation of Universities of Fujian province
文摘The crystal structure of 1,4,8,11,15,18,22,25-octa-butyloxyphthalocyanine was determined by X-ray diffraction methods. The crystal is of triclinic, space group P 1 with a = 14.0780(3), b = 14.3480(4), c = 17.0090(2) A, α = 72.156(2), β = 86.193(2), r= 73.655(2)°, C64H82N8O8, Mr = 1091.38, Z = 2, V = 3137.5(1) A3, Dc= 1.155 g/cm3, F(000) = 1172, μ(MoKα) = 0.077 mm-1, the final R = 0.0787 and wR = 0.2240 for 5795 observed reflections with I ≥ 2σ(I). The steric congestion between the neighboring butyloxy groups distorts the core of phthalocyanine into a saddle shape conformation. In the crystal lattice, molecules overlap to each other with π-π interaction but the extent of overlap is different along the three axial directions.
基金Supported by the Science Foundation of Fujian province and the Test Foundation of Universities of Fujian province
文摘Crystal structure of ethanol coordinated 1,8,15,22-tetra(2,2,4-trimethyl-3-pentoxy) phthalocyaninatocobalt (C64H80N8O4Co2C2H5OH, Mr = 1176.43) was determined by X-ray diffrac- tion methods. The crystal is of monoclinic, space group P21/c with a = 16.4294(4), b = 8.0560(2), c = 24.3654(7) ? ?= 98.3680(8)? Z = 2, V = 3190.6(1) ?, Dc = 1.225 g/cm3, F(000) = 1262, (MoK? = 0.326 mm-1, the final R = 0.0865 and wR = 0.2737 for 4787 observed reflections with I ≥ 2(I). The bulky branched alkyloxy substituents lead to a one structural isomer and space the phthalocyanine molecules where two ethanol molecules coordinate to the cobalt atom from two sides of each molecule.
文摘The creation of Au/CuPe/Al/CuPc/strueture is a perpendicular type electricity found in the channel of organic static induction transistor. In the following we analyze transistor operation characteristics and machine structural relation. The results express that the transistor drives the voltage low and has no-saturation currentvoltage characteristics. Its operation characteristics are dependant on gate bias voltage and the construction of the aluminum eleetrode. The vertical ehannel of organic static induction transistor （OSIT） , with structure of Au/CuPc/Al/CuPc/ Cu, has been determined. According to the test results, the relation of its operation characteristics aud device structure was analyzed. The results show that this transistor has a low driving voltage and unsaturation Ⅰ-Ⅴ characteristies. Its operation characteristics are dependant on gate bias voltage and the structure of the aluminum electrode.
基金financially supported by the National Basic Research Program of China (973 Program) (Grant No. 2007CB936302)the National Natural Science Foundation of China (Grant No. 20833002)
文摘We herein report the effective performance enhancement of the pentacene-based organic thin film transistors with silicon di- oxide dielectric by inserting a thin metal phthalocyanines interlayer between Au source/drain electrodes and the pentacene active layer. The threshold voltage decreased remarkably from ca. -20 V to a few volts （below -7.6 V） while the mobility in- creased 1.5-3 times after the insertion of the interlayer of only ca. 2 nm, which could be attributed to the reduction of the car- tier injection barrier. The results suggest a simple and effective way to achieve low-threshold-voltage pentacene-based organic thin film transistors with high mobility on silicon dioxide dielectric.
