title: Fully spray coated organic photodiodes.
abstract: Solution-processed organic diodes based on bulk heterojunctions are attractive for large area photodetection. We report a general approach for fully spray-coated organic photodiodes with outstanding characteristics in comparison to bladed or spin-coated devices. Despite the high surface roughness and the less defined morphology of the spray-deposited organic layers, we observe organic photodetectors with responsivities of 0.36 A/W and noise equivalent powers of 0.2 pW/H(1/2) in the visible spectrum at high reverse biases of -5 V. Furthermore, we demonstrate device lifetimes beyond 1 year as well as superior yield and reproducibilties for the dark current and photocurrent densities.
authors.affiliation: Siemens AG, Corporate Technology, CT MM1, Gunther-Scharowsky-Strasse 1, 91058 Erlangen, Germany. sandro.tedde@siemens.com
authors.forename: Sandro F
authors.initials: SF
authors.lastname: Tedde
authors.forename: Johannes
authors.initials: J
authors.lastname: Kern
authors.forename: Tobias
authors.initials: T
authors.lastname: Sterzl
authors.forename: Jens
authors.initials: J
authors.lastname: Fürst
authors.forename: Paolo
authors.initials: P
authors.lastname: Lugli
authors.forename: Oliver
authors.initials: O
authors.lastname: Hayden
mesh_terms: D000465:Algorithms; D002625:Chemistry, Organic / Q000379:methods; D005898:Glass; D008027:Light; D036103:Nanotechnology / Q000379:methods*; D009930:Organic Chemicals / Q000737:chemistry; D009991:Oscillometry; D010777:Photochemistry / Q000379:methods*; D012666:Semiconductors; D012680:Sensitivity and Specificity; D013499:Surface Properties; D013696:Temperature
chemical_list: D009930:Organic Chemicals