Fully spray coated organic photodiodes.
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.
Tedde
Sandro F
SF
Siemens AG, Corporate Technology, CT MM1, Gunther-Scharowsky-Strasse 1, 91058 Erlangen, Germany. sandro.tedde@siemens.com
Kern
Johannes
J
Sterzl
Tobias
T
Fürst
Jens
J
Lugli
Paolo
P
Hayden
Oliver
O
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
D009930:Organic Chemicals