Regensburg 2019 – wissenschaftliches Programm
HL 45.20: Poster
Donnerstag, 4. April 2019, 18:30–21:00, Poster E
Organic nano-triode arrays based on self-assembled porous Al and PMMA — •Erjuan Guo, Shen Xing, Felix Dollinger, Hans Kleemann, and Karl Leo — Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universität Dresden, 01062 Dresden, Germany
We utilize the colloidal lithography method for solution processable electronics and demonstrate massively parallel organization of connected three terminal vertical organic transistors. The vertical transistor devices consist of connected organic nano-triode arrays obtained using nanoporous aluminum and PMMA as templates with pore density of about 109 pores/cm2. In this structure, a collector-emitter diode gives rise to a space charge limited current, which can be controlled by a third intermediate porous base electrode to give transistor like characteristics. The transistors achieve a high on/off ratio greater than 105 at low operation voltage of -1.5 V. The output current density is 115 mA/cm2 with current gain greater than 1000, thereby facilitating the development of cost-efficient organic power devices. This study provides a potential foundation for achieving cost-efficient colloidal lithography in real production environment.