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Programmed Molecular Assembly of Abrupt Crystalline Organic/Organic Heterointerfaces Yielding Metal‐Organic Framework Diodes with Large On‐Off Ratios

Chandresh, Abhinav 1; Liu, Xiaojing 1; Wöll, Christof 1; Heinke, Lars 1
1 Institut für Funktionelle Grenzflächen (IFG), Karlsruher Institut für Technologie (KIT)


Structurally well‐defined, crystalline organic/organic heterojunctions between C$^{60-}$ and anthracene‐based semiconductors are realized via layer‐by‐layer deposition of metal‐organic framework, MOF, thin films. As demonstrated by X‐ray diffraction, perfect epitaxy is achieved by adjusting the lattice constants of the two different MOFs. Deposition of top electrodes allows to fabricate p–n as well as n–p devices. Measurements of the electrical properties reveal the presence of high‐performance diodes, with a current on/off ratio of up to 6 orders of magnitude and an ideality factor close to unity. The crystalline nature of the abrupt organic/organic heterojunction provides the basis for a rational, simulation‐based optimization and tailoring of such organic semiconductor interfaces.

Verlagsausgabe §
DOI: 10.5445/IR/1000131049
Veröffentlicht am 31.03.2021
DOI: 10.1002/advs.202001884
Zitationen: 14
Zitationen: 21
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Funktionelle Grenzflächen (IFG)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 07.04.2021
Sprache Englisch
Identifikator ISSN: 2198-3844, 2198-3844
KITopen-ID: 1000131049
HGF-Programm 43.33.11 (POF IV, LK 01) Adaptive and Bioinstructive Materials Systems
Erschienen in Advanced science
Verlag Wiley Open Access
Band 8
Heft 7
Seiten Art.-Nr. 2001884
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 21.01.2021
Nachgewiesen in Scopus
Web of Science
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