{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T02:05:09Z","timestamp":1774922709628,"version":"3.50.1"},"reference-count":48,"publisher":"Wiley","issue":"16","license":[{"start":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T00:00:00Z","timestamp":1767916800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T00:00:00Z","timestamp":1767916800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"publisher","award":["1082204112109"],"award-info":[{"award-number":["1082204112109"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Science"],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    The development of colloidal quantum dot solar cells (CQDSCs) is currently constrained by the substantial open\u2010circuit voltage (\n                    <jats:italic>V<\/jats:italic>\n                    <jats:sub>oc<\/jats:sub>\n                    ) deficit and intricate fabrication processes. Here, we present a simplified device architecture achieved by synergistically combining a direct\u2010synthesis colloidal quantum dot (CQD) ink with a facile methanol\/oxalic acid modification of the Poly(3,4\u2010ethylenedoxythiophene):polystyrene sulfonate (PEDOT:PSS) interlayer. This strategy simultaneously addresses the poor wettability of aqueous PEDOT:PSS on hydrophobic PbS\u2010EDT layers and initiates critical chemical optimization. By selectively removing insulating PSS, the treatment fosters a dense, electronically uniform fibrous network. Crucially, this optimized interlayer exhibits a work function shift from \u22125.30 to \u22125.15\u00a0eV, which reduces the hole extraction barrier to the Ag electrode from 0.51 to 0.36\u00a0eV. This favorable energy alignment extends the carrier lifetime from 0.54 to 2.37\u00a0ms and accelerates charge extraction. Consequently, the\n                    <jats:italic>V<\/jats:italic>\n                    <jats:sub>oc<\/jats:sub>\n                    is boosted from 649 to 742\u00a0mV, propelling the power conversion efficiency to 13.97%. This work offers a robust, process\u2010compatible interfacial strategy to unlock stable, high\u2010voltage CQDSCs.\n                  <\/jats:p>","DOI":"10.1002\/advs.202524275","type":"journal-article","created":{"date-parts":[[2026,1,10]],"date-time":"2026-01-10T05:28:24Z","timestamp":1768022904000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Overcoming Hole\u2010Extraction Barriers: A Facile PEDOT:PSS Interlayer Unlocks Record\u2010Low Voltage Deficit in PbS Quantum Dot Solar Cells"],"prefix":"10.1002","volume":"13","author":[{"given":"Shengkai","family":"Kang","sequence":"first","affiliation":[{"name":"College of Materials Science and Engineering &amp; Institute of New Energy and Low\u2010Carbon Technology Engineering Research Center of Alternative Energy Materials &amp; Devices of Ministry of Education Sichuan University  Chengdu 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