• Kim, Y.; Gensler, M.; Kim, J.; Janietz, S.; Völkel, C.; Boeffel, C.; Solak, S.; Hermerschmidt, F.; List-Kratochvil, E.J.W.; Han, C.J.; Oh, M.S.; Park, K.; Wedel, A.: Quantum Dot/Organic Nanohybrids for InP-based QD-LEDs and Their Patterning via Electrohydrodynamic Jet Printing. SID Symposium Digest of Technical Papers 54 (2023), p. 982-985


Quantum dot (QD)/organic nanohybrids were developed to be utilized in electrohydrodynamic (EHD) jet-printed QD-LEDs. Side-chain copolymer with elongated aliphatic thiol groups was newly introduced into the nanohybrids to coordinate the polymer chains with the QD surface. The QD-LEDs with the nonohybrids showed a higher current efficiency over 4-fold than that with a QD-only active layer. EHD jet-printing was independently performed up to 5µm pixel pitch on a substrate, resulting in a resolution of ca. 5,080 pixels per inch.