13.56MHz Rectification Device Based on Organic Diode for Application of Organic RFID Tag
Date Issued
2007
Date
2007
Author(s)
Ruan, Juo-Chiun
DOI
zh-TW
Abstract
In this thesis, we adopt pentacene to fabricate organic diodes working on RF devices. It plays an important role which continuously offers stable voltage to other components in RFID tag chips. By far, commercial RFIDs operate at 13.56MHz. Unfortunately, the mobility of most organic materials is too low to work at such high frequency. Accordingly, we fabricate organic diodes based on pentacene as a result of higher mobility of pentacene as compared with other common organic materials. Besides, we use PEDOT:PSS as HIL（Hole Injection Layer） to improve carrier injection, thus promoting the carrier mobility. However, it also increases leakage current and lowers current of forward bias/reverse bias ratio so that organic diodes can not rectify at high frequency. Consequently, we decide not to use PEDOT:PSS in our experiment. Although the carrier mobility lowers, it still can rectify at 13.56MHz. Finally, we successfully complete organic diode devices operating at the order of 10MHz. The device has the rectifying voltage about 4.14V and carrier mobility about 0.019cm2/Vs.
Subjects
無線射頻標籤
RFID
tag
rectifier
Type
thesis
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