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8月2日,昆山市中荣金属制品有限公司的轮毂抛光车间,发生严重的粉尘爆炸事故。事故的惨相为近年罕见:已有71人遇难,而多数伤者烧伤面积超90%,几乎所有人都是深度烧伤;医疗机构为超过半数的烧伤患者实施了气管切开手术。 相似文献
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We fabricate pentacene-based organic field effect transistors (OFETs) with Cu as source and drain (S-D) electrodes. The fabricated devices stored for ten hours under ambient atmospheric conditions exhibit superior performance compared with the as-prepared devices. The field-effect mobility increases from 0. 012 to 0.03 cm^2 V^-1 s^-1, and the threshold voltage downshifts from -14 to -9 V. The on/off current ratios are close to the order of 10^4. The improved performance of the stored devices is attributed to the formation of thin Cu oxide at the Cu electrodes/organic interfaces. These results suggest a simple and available way to optimize device properties and to reduce fabrication cost for OFETs. 相似文献
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