The dependence of the performance of organic light-emitting devices（OLEDs） on the sheet resistance of indiumtin-oxide（ITO） anodes was investigated by measuring the steady state current density brightness voltage c...The dependence of the performance of organic light-emitting devices（OLEDs） on the sheet resistance of indiumtin-oxide（ITO） anodes was investigated by measuring the steady state current density brightness voltage characteristics and the electroluminescent spectra. The device with a higher sheet resistance anode shows a lower current density, a lower brightness level, and a higher operation voltage. The electroluminescence（EL） efficiencies of the devices with the same structure but different ITO anodes show more complicated differences. Furthermore, the shift of the light-emitting zone toward the anode was found when an anode with a higher sheet resistance was used. These performance differences are discussed and attributed to the reduction of hole injection and the increase in voltage drop over ITO anode with the increase in sheet resistance.展开更多
采用直流磁控溅射方法在室温下玻璃基板上制备ITO（Indium tin oxide）薄膜，并在真空中不同温度（100℃-400℃）下退火处理。研究了退火对薄膜表面形貌、电光特性的影响。XRD测试发现薄膜在200℃退火后结晶，优选晶向为（222）。随退...采用直流磁控溅射方法在室温下玻璃基板上制备ITO（Indium tin oxide）薄膜，并在真空中不同温度（100℃-400℃）下退火处理。研究了退火对薄膜表面形貌、电光特性的影响。XRD测试发现薄膜在200℃退火后结晶，优选晶向为（222）。随退火温度升高，方块电阻迅速下降，表面更加平整，薄膜在可见光范围平均透过率提高到85％。展开更多
通过扩大H型反应器,利用面积超过100 cm 2的铟金属片和锡金属片电极电催化还原二氧化碳制甲酸。从二氧化碳还原反应产物的选择性、电解能力等方面进行了研究,得到了大尺寸金属电极反应器电催化制甲酸的优化方法。结果表明,进气流量40 mL...通过扩大H型反应器,利用面积超过100 cm 2的铟金属片和锡金属片电极电催化还原二氧化碳制甲酸。从二氧化碳还原反应产物的选择性、电解能力等方面进行了研究,得到了大尺寸金属电极反应器电催化制甲酸的优化方法。结果表明,进气流量40 mL/min和电流密度-3.0~-4.5 mA/cm^(2)区间及中性电解质为反应的最佳条件。展开更多
基金Supported by the National Natural Science Foundation of China(No. 20372060), the Key National Natural Science Foundationof China(No. 20131010), the Important National Natural Science Foundation of China(No. 20490210), the"863"Program(Nos.2002AA302105 and 2002AA324080) and Foreign Communion &Cooperation of National Natural Science Foundation of China(No.20340420326).
文摘The dependence of the performance of organic light-emitting devices（OLEDs） on the sheet resistance of indiumtin-oxide（ITO） anodes was investigated by measuring the steady state current density brightness voltage characteristics and the electroluminescent spectra. The device with a higher sheet resistance anode shows a lower current density, a lower brightness level, and a higher operation voltage. The electroluminescence（EL） efficiencies of the devices with the same structure but different ITO anodes show more complicated differences. Furthermore, the shift of the light-emitting zone toward the anode was found when an anode with a higher sheet resistance was used. These performance differences are discussed and attributed to the reduction of hole injection and the increase in voltage drop over ITO anode with the increase in sheet resistance.
文摘采用直流磁控溅射方法在室温下玻璃基板上制备ITO（Indium tin oxide）薄膜，并在真空中不同温度（100℃-400℃）下退火处理。研究了退火对薄膜表面形貌、电光特性的影响。XRD测试发现薄膜在200℃退火后结晶，优选晶向为（222）。随退火温度升高，方块电阻迅速下降，表面更加平整，薄膜在可见光范围平均透过率提高到85％。
文摘通过扩大H型反应器,利用面积超过100 cm 2的铟金属片和锡金属片电极电催化还原二氧化碳制甲酸。从二氧化碳还原反应产物的选择性、电解能力等方面进行了研究,得到了大尺寸金属电极反应器电催化制甲酸的优化方法。结果表明,进气流量40 mL/min和电流密度-3.0~-4.5 mA/cm^(2)区间及中性电解质为反应的最佳条件。
