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Aerosol‐Jet‐Printed Donor‐Blocking Layer for Organic Photodiodes

Seiberlich, Mervin 1; Strobel, Noah 1; Ruiz-Preciado, Luis Arturo 1; Ruscello, Marta; Lemmer, Uli 1,2; Hernandez-Sosa, Gerardo 1
1 Lichttechnisches Institut (LTI), Karlsruher Institut für Technologie (KIT)
2 Institut für Mikrostrukturtechnik (IMT), Karlsruher Institut für Technologie (KIT)

Organic photodiodes (OPDs) are optical sensors combining high performance, lightweight mechanical flexibility, and processability from solution. Their fabrication by industrial printing techniques opens a wide range of innovative applications for emerging fields in sensing and the Internet of Things. They typically consist of printed multilayers with functionalities to absorb light, to extract charges, or to reduce detection noise. However, the printing of such device architecture poses a challenge as the deposition of a material can lead to disruption of film morphology or intermixing of materials if its solvent interacts with the previously deposited layer. This work proposes a process to print multilayers from the same solvent system utilizing the aerosol-jet technique. By fine adjustment of the aerosol properties through the tube temperature (TTube), the drying time of poly(3-hexylthiophene-2,5-diyl) (P3HT) printed layers is significantly reduced. This allows its deposition onto a P3HT-based bulk-heterojunction (BHJ) without negatively affecting its performance. The additional printed P3HT layer, spatially extends the donor region of the BHJ, providing ideal hole extraction and simultaneous noise reduction by the blocking of injected electrons. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000127565
Veröffentlicht am 23.08.2021
DOI: 10.1002/aelm.202000811
Zitationen: 5
Web of Science
Zitationen: 6
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 01.2021
Sprache Englisch
Identifikator ISSN: 2199-160X, 2199-160X
KITopen-ID: 1000127565
HGF-Programm 38.01.02 (POF IV, LK 01) Materials and Interfaces
Erschienen in Advanced electronic materials
Verlag John Wiley and Sons
Band 7
Heft 1
Seiten Art.Nr. 2000811
Nachgewiesen in Scopus
Web of Science
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