Dresden 2011 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 62: [DS] Organic Electronics and Photovoltaics I (jointly with CPP, HL, and O)
O 62.5: Vortrag
Donnerstag, 17. März 2011, 11:15–11:30, GER 38
Organic pin-Diodes with Adjustable Current-Voltage Performance Applicable at Ultra-High-Frequencies — •Hans Kleemann, Christoph Schünemann, Paul Pahner, Alexander A. Zakhidov, Björn Lüssem, and Karl Leo — Institut für Angewandte Photophysik, Technische Universität Dresden, George-Bähr-Straße 1, 01069 Dresden, Germany
Organic diodes have been intensively studied during the past years and great progress has been achieved in the field of organic light-emitting diodes (OLEDs) and organic solar cells (OSC). Moreover, the development of other organic devices like thin film transistors, vertical transistors, memory arrays, and high-frequency diodes which are required for an electronic circuitry will allow the design and integration of complete organic electronics. In this contribution we present organic pin-diodes with adjustable forward and reverse current-voltage performance applicable in the ultra-high-frequency region. Key parameters to design these diodes are the doping concentration, the intrinsic interlayer thickness and the material properties. In this way the reversible backward breakdown can be shifted from −3V to more than −20V independently of the forward performance [1]. Due to the high rectification ratio (105) and since the diodes contain high mobility materials like pentacene and C60 we present high-frequency properties of these pin-diodes above 13.56MHz required for RFID-tags.
[1] H. Kleemann et al., Organic Zener Diodes: Tunneling across the Gap in Organic Semiconductor Materials, Nano Letters 2010, published online.