Abstract
Quantum‐dot light emitting diode (QD‐LED) displays have attracted great attention because of their high potential as a future display technology. The solution processability is also regarded as an important advantage for low‐cost manufacturing capabilities. However, the use of toxic and environmentally hazardous organic solvents is the dark side of solution processable QD‐LEDs. Chlorobenzene, chloroform, 1‐4 dioxane, and 1,2‐dichlorobenzene are representative toxic solvents for the manufacture of QD‐LEDs, and these are mainly used as solvents in the hole transport layer (HTL). Therefore, it is important to find an environmentally friendly solvent for (HTL). In this study, we report a new methodology for finding environmentally friendly solvents, that have good processability, and have solvent orthogonality with adjacent layers.
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