{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T01:01:41Z","timestamp":1760230901089,"version":"build-2065373602"},"reference-count":61,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2022,8,18]],"date-time":"2022-08-18T00:00:00Z","timestamp":1660780800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key R&amp;D Program of China","doi-asserted-by":"publisher","award":["2018YFA0209200"],"award-info":[{"award-number":["2018YFA0209200"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Window\u2212film\u2212integrated, near\u2212infrared (NIR) absorption\u2212based nanomaterials are of great interest in terms of numerous demands to reduce energy consumption, especially in buildings and vehicles. However, the question of how to effectively manage thermal energy generated from NIR harvesting in light\u2212absorbing materials, rather than being wasted or causing negative effects, remains challenging. Herein, hollow copper sulfide (Cu2\u2212xS) on colorless polyimide (PI) films, enabling them to be well\u2212dispersed and robustly adhered, underwent in situ growth fabrication and were utilized as NIR\u2212thermal\u2212shielding and organic\u2212pollutant\u2212removal dual\u2212function window films. Due to strong NIR absorbance, arising from the heavy hole\u2212doping (copper cation deficiency), the Cu2\u2212xS\/PI composite film exhibited great promise for use in the filtration of the NIR spectrum. By monitoring Cu2\u2212xS densities, its NIR\u2212shielding efficiency reached 69.4%, with hundred\u2212percent UV blocking and consistent performance within the reliability (85 \u00b0C\/85%RH) tests over one week as well as 5000 bending cycles. The integration of the films into model cars and building windows exhibited excellent thermal\u2212shielding performance upon exposure to direct sunlight. Moreover, benefiting from the distinctive distribution of Cu2\u2212xS, the additional thermal energy (holes) generated in NIR absorption was successfully utilized. The densely surface\u2212confined hollow structure of Cu2\u2212xS on PI significantly endowed good formaldehyde catalytic capacity, with removal efficiency reaching approximately 72% within 60 min and a negligible decline after quartic reuse. These integration methodologies enable the promising fabrication of a high\u2212performance, bifunctional window film combining thermal shielding and indoor organic pollutant removal.<\/jats:p>","DOI":"10.3390\/polym14163382","type":"journal-article","created":{"date-parts":[[2022,8,18]],"date-time":"2022-08-18T23:28:41Z","timestamp":1660865321000},"page":"3382","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Advanced Dual\u2212Function Hollow Copper\u2212Sulfide\u2212Based Polyimide Composite Window Film Combining Near\u2212Infrared Thermal Shielding and Organic Pollutants\u2019 Photodegradation"],"prefix":"10.3390","volume":"14","author":[{"given":"Xiangfu","family":"Liu","sequence":"first","affiliation":[{"name":"Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jinming","family":"Ma","sequence":"additional","affiliation":[{"name":"Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiulin","family":"Shen","sequence":"additional","affiliation":[{"name":"Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jianqiao","family":"Zhao","sequence":"additional","affiliation":[{"name":"Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chengxu","family":"Lu","sequence":"additional","affiliation":[{"name":"Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3890-813X","authenticated-orcid":false,"given":"Guoli","family":"Tu","sequence":"additional","affiliation":[{"name":"Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"822","DOI":"10.1016\/j.trc.2018.09.001","article-title":"Energy saving potentials of connected and automated vehicles","volume":"95","author":"Vahidi","year":"2018","journal-title":"Transport. 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