Thermal Stability of Flexible IGZO/Ag Schottky Diodes on Cellulose Microfiber Paper Substrate

2021 IEEE International Flexible Electronics Technology Conference (IFETC) Pub Date : 2021-08-08 DOI:10.1109/IFETC49530.2021.9580504

S. Vasquez, Mukhtar Ahmad, M. Petrelli, M. C. Angeli, R. Riaz, Ali Douaki, G. Cantarella, N. Münzenrieder, P. Lugli, L. Petti

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引用次数: 1

Abstract

In this work, Schottky diodes based on amorphous indium-gallium-zinc-oxide (IGZO) were fabricated on cellulose microfiber paper substrate. Silver lines used as the Schottky barrier were printed, in parallel to thermally evaporated Cr/Au ohmic contact, using a dispense printer. The morphological and electrical characteristics of the devices are presented. The fabricated diodes exhibited rectification ratios ranging from 3.4 to 34.9 at ±1V with ON voltages that range from 1.1V to 1.4 V, for device lengths (Ag to Au distance) from 145 µm to 894 µm. The diodes were characterized in a temperature range between 25°C and 80°C. They showed a decrease of the ON current when increasing temperature, which is mainly attributed to the change of the cellulose microstructure. Indeed, an opposite of the ON current behavior was registered when the diode was realized on a polyimide substrate. The realized flexible paper-based diodes offer a potential promising choice for printed environmental-friendly electronics.

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纤维素微纤维纸衬底上柔性IGZO/Ag肖特基二极管的热稳定性

本文在纤维素微纤维纸衬底上制备了基于非晶铟镓锌氧化物(IGZO)的肖特基二极管。作为肖特基势垒的银线被印刷，平行于热蒸发的铬/金欧姆接触，使用点打印机。给出了器件的形态和电特性。该二极管在±1V下的整流比为3.4 ~ 34.9,ON电压为1.1 ~ 1.4 V，器件长度(Ag到Au距离)为145µm ~ 894µm。该二极管在25°C至80°C的温度范围内进行表征。随着温度的升高，导通电流减小，这主要是由于纤维素微观结构的变化。事实上，当二极管在聚酰亚胺衬底上实现时，记录了与导通电流相反的行为。所实现的柔性纸基二极管为印刷环保电子产品提供了一个潜在的有前途的选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2021 IEEE International Flexible Electronics Technology Conference (IFETC)

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