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The as\u2010synthesized QDs initially have an under\u2010coordinated vacancy surface, which is passivated by solvent ligands such as ethanol and acetone. Upon exposure of 1\u2010octanethiol to the QD surface, 1\u2010octanethiol effectively induces the surface binding of anionic carboxylate ligands (derived from zinc carboxylate ligands) by proton transfer, which consequently exchanges ethanol and acetone ligands that bind on the incomplete QD surface. These systematic chemical analyses, such as thermogravimetric analysis\u2010mass spectrometry and proton nuclear magnetic resonance spectroscopy, directly show the interplay of surface ligands, and it associates with QD light\u2010emitting diodes (QD\u2010LEDs). It is believed that this better understanding can lead to industrially feasible QD\u2010LEDs.<\/jats:p>","DOI":"10.1002\/smll.202203093","type":"journal-article","created":{"date-parts":[[2022,9,7]],"date-time":"2022-09-07T09:45:44Z","timestamp":1662543944000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Ligand Effect in 1\u2010Octanethiol Passivation of InP\/ZnSe\/ZnS Quantum Dots\u2014Evidence of Incomplete Surface Passivation during Synthesis"],"prefix":"10.1002","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4981-1907","authenticated-orcid":false,"given":"Jiyong","family":"Kim","sequence":"first","affiliation":[{"name":"Functional Materials and Devices Fraunhofer Institute for Applied Polymer Research  14476 Potsdam 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