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A Switchable One-Compound Diode

Title data

Vogel, Anna ; Rabenbauer, Alfred ; Deng, Philipp ; Steib, Ruben ; Böger, Thorben ; Zeier, Wolfgang G. ; Siegel, Renée ; Senker, Jürgen ; Daisenberger, Dominik ; Nisi, Katharina ; Holleitner, Alexander W. ; Venturini, Janio ; Nilges, Tom:
A Switchable One-Compound Diode.
In: Advanced Materials. Vol. 35 (2023) Issue 2 . - 2208698.
ISSN 1521-4095

Abstract in another language

A diode requires the combination of p- and n-type semiconductors or at least the defined formation of such areas within a given compound. This is a prerequisite for any IT application, energy conversion technology, and electronic semiconductor devices. Since the discovery of the pnp-switchable compound Ag10Te4Br3 in 2009, it is in principle possible to fabricate a diode from a single material without adjusting the semiconduction type by a defined doping level. Often a structural phase transition accompanied by a dynamic change of charge carriers or a charge density wave within certain substructures are responsible for this effect. Unfortunately, the high pnp-switching temperature between 364 and 580 K hinders the application of this phenomenon in convenient devices. This effect is far removed from a suitable operation temperature at ambient conditions. Ag18Cu3Te11Cl3 is a room temperature pnp-switching material and the first single-material position-independent diode. It shows the highest ever reported Seebeck coefficient drop that takes place within a few Kelvin. Combined with its low thermal conductivity, it offers great application potential within an accessible and applicable temperature window. Ag18Cu3Te11Cl3 and pnp-switching materials have the potential for applications and processes where diodes, transistors, or any defined charge separation with junction formation are utilized.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: WOS:000890110900001
Keywords: coinage metals; diodes; ion conductors; pnp-switches; polymorphism
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry III > Chair Inorganic Chemistry III - Univ.-Prof. Dr. Jürgen Senker
Research Institutions > Central research institutes > Nordbayerisches Zentrum für NMR-Spektroskopie - NMR-Zentrum
Result of work at the UBT: Yes
DDC Subjects: 500 Science
500 Science > 540 Chemistry
Date Deposited: 05 Jun 2023 09:24
Last Modified: 05 Jun 2023 09:24