The Effect of Orthogonal Solvent of Colloidal Quantum Dots on QD-LED device

摘要

We investigated the orthogonal solvent of CdSe/ZnS quantum dots in order to deposit poly-TPD hole transport layer without damages and enhance the performances of QD-LEDs. Using hexane and heptane as nonpolar organic solvent of QDs does not affect poly-TPD layer has found. 3 mg/ml in hexane shows highest luminance and current efficiency but creates non-uniform QD-layer because lower boiling point of hexane. The last we found that even different concentration of QDs in heptane show similar device performance.