Hahm, Donghyo Park, Jisoo Jeong, Inho Rhee, Seunghyun Lee, Taesoo Lee, Changhee Chung, Seunjun Bae, Wan Ki Lee, Seonwoo 2024-01-19T18:01:53Z 2024-01-19T18:01:53Z 2021-09-04 2020-03-04 1944-8244 https://pubs.kist.re.kr/handle/201004/118866 The rising demand for eradicating hazardous substances in the workplace has motivated vigorous researches on environmentally sustainable manufacturing processes of colloidal quantum dots (QDs) for their optoelectronic applications. Despite remarkable achievements witnessed in QD materials (e.g., Pb- or Cd-free QDs), the progress in the eco-friendly process is far falling behind and thus the practical use of QDs. Herein, a complete "green" process of QDs, which excludes environmentally unfriendly elements from QDs, ligands, or solvents, is presented. The implant of mono-2-(methacryloyloxy)ethyl succinate (MMES) ligands renders InP/ZnSexS1-x QDs dispersed in eco-friendly polar solvents that are widely accepted in the industry while keeping the photophysical properties of QDs unchanged. The MMES-capped QDs show exceptional colloidal stabilities in a range of green polar solvents that permit uniform inkjet printing of QD dispersion. In addition, MMES-capped QDs are also compatible with commercially available photo-patternable resins, and the cross-linkable moiety within MMES further facilitates the achievement in the formation of well-defined, micrometer-scale patterning of QD optical films. The presented materials, all composed of simple, scalable, and environmentally safe compounds, promise low environmental impact during the processing of QDs and thus will catalyze the practicable use of QDs in a variety of optoelectronic devices. English American Chemical Society LIGHT-EMITTING-DIODES INP-AT-ZNSES SEMICONDUCTOR NANOCRYSTALS HIGHLY EFFICIENT BRIGHT INTERFACE DESIGN Surface Engineered Colloidal Quantum Dots for Complete Green Process Article 10.1021/acsami.9b23265 1 ACS Applied Materials & Interfaces, v.12, no.9, pp.10563 - 10570 ACS Applied Materials & Interfaces 12 9 10563 10570 scie scopus 000518702300050 2-s2.0-85080147117 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article LIGHT-EMITTING-DIODES INP-AT-ZNSES SEMICONDUCTOR NANOCRYSTALS HIGHLY EFFICIENT BRIGHT INTERFACE DESIGN environmentally friendly processing quantum dots inkjet printing photo-patterning electroluminescence devices