Abstract
In this paper, low-cost rectifier based on an organic diode for use in organic radio frequency identification (RFID) tags is proposed. Pentacene is the electroactive layer, with 7,7,8,8-tetracyanoquinodimethane (TCNQ) modified low-cost copper (Cu) and aluminum (Al) as the Ohmic and Schottky contacts, respectively. Hole injection barrier between Cu and pentacene can be decreased by forming the self-assembled layers of Cu-TCNQ. The diode shows a high rectification ratio of approximately 2×106 at 5V and the organic diode based rectifier circuit generated a dc output voltage of approximately 2V at 13.56MHz, using an input ac signal with zero-to-peak voltage amplitude of 5 V. The results indicate that chemical modification of the low-cost electrodes could be an efficient way toward low-cost high performance organic electronics devices.
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Acknowledgment
This work was partially supported by the National 973 Program (2011CB808404, 2009CB939703), and the National Science Foundation of China under Grant Nos. 60825403, 90607022, and 61001043.
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Wang, H., Ji, Z., Shang, L. et al. Low-cost 13.56MHz Rectifier Based on Organic Diode. MRS Online Proceedings Library 1402, 13–18 (2012). https://doi.org/10.1557/opl.2012.145
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DOI: https://doi.org/10.1557/opl.2012.145