{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T21:47:23Z","timestamp":1791841643063,"version":"4.3.4"},"reference-count":86,"publisher":"American Chemical Society (ACS)","issue":"34","license":[{"start":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T00:00:00Z","timestamp":1787184000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T00:00:00Z","timestamp":1787184000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T00:00:00Z","timestamp":1787184000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-045"}],"funder":[{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["NRF-2018R1A5A1024127"],"award-info":[{"award-number":["NRF-2018R1A5A1024127"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["RS-2025-25409839"],"award-info":[{"award-number":["RS-2025-25409839"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,9,2]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Quantum dots (QDs) are promising emissive materials for next-generation optoelectronics, but conventional oleic acid (OA) capping necessitates toxic, nonpolar solvents such as toluene and chloroform, hindering environmentally sustainable solvent-based processing. Here, we report a green, solution-processable ligand-exchange strategy in which thiol-terminated poly(ethylene oxide) (PEO-SH) replaces OA on QDs, enabling stable dispersion in ethanol and water. By tuning the molecular weight of PEO, we identify PEO with Mn \u2248 2000 g\/mol as an optimal ligand that provides a balanced combination of chain length and surface coverage, resulting in long-term colloidal stability and high photoluminescence quantum yield in polar media. Using these QD-PEO2k inks, we fabricate multilayer quantum dot light-emitting diodes (QLEDs) from ethanol and water\/ethanol co-solvents, achieving a maximum external quantum efficiency of 2.12% and a current efficiency of 9.19 cd A\u20131. These results successfully serve as a proof-of-concept for generating functional electroluminescence from water\/alcohol-based QD inks. Ultimately, this work establishes a foundational step toward reducing toxic solvent dependency and advancing sustainable manufacturing in solution-processed optoelectronics.<\/jats:p>","DOI":"10.1021\/acsami.6c10538","type":"journal-article","created":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T15:02:42Z","timestamp":1787238162000},"page":"46554-46564","source":"Crossref","is-referenced-by-count":0,"title":["Surface-Engineered Poly(ethylene oxide)-Grafted Quantum Dot Inks for Green-Solvent-Processed Electroluminescent Devices"],"prefix":"10.1021","volume":"18","author":[{"given":"Moon-Chul","family":"Ryu","sequence":"first","affiliation":[{"name":"Hongik University , , ,","place":["Seoul, Rep. of Korea, 04066"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gyu Jin","family":"Shin","sequence":"additional","affiliation":[{"name":"Soongsil University , , ,","place":["Seoul, Rep. of Korea, 06978"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ho Seok","family":"Heo","sequence":"additional","affiliation":[{"name":"Yonsei University , , ,","place":["Seoul, Rep. of Korea, 03722"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seung Ah","family":"Lee","sequence":"additional","affiliation":[{"name":"Soongsil University , , ,","place":["Seoul, Rep. of Korea, 06978"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tae-Young","family":"Heo","sequence":"additional","affiliation":[{"name":"Hongik University , , ,","place":["Seoul, Rep. of Korea, 04066"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0845-8636","authenticated-orcid":true,"given":"Kangtaek","family":"Lee","sequence":"additional","affiliation":[{"name":"Yonsei University , , ,","place":["Seoul, Rep. of Korea, 03722"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6200-0079","authenticated-orcid":true,"given":"Jun Hyup","family":"Lee","sequence":"additional","affiliation":[{"name":"Soongsil University , , ,","place":["Seoul, Rep. of Korea, 06978"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4078-6285","authenticated-orcid":true,"given":"Soo-Hyung","family":"Choi","sequence":"additional","affiliation":[{"name":"Hongik University , , ,","place":["Seoul, Rep. of Korea, 04066"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,8,20]]},"reference":[{"issue":"19","key":"2026101217071739200_cit1","doi-asserted-by":"publisher","first-page":"8706","DOI":"10.1021\/ja00072a025","article-title":"Synthesis and Characterization of Nearly Monodisperse CdE (E = Sulfur, Selenium, Tellurium) Semiconductor Nanocrystallites","volume":"115","author":"Murray","year":"1993","journal-title":"J. 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