One-step preparation of excellent flexible ethyl cellulose composite film for LED
Perovskite quantum dots (PQDs) has been attracted enormous attention in optoelectronic fields, especially as highly efficient narrow-band phosphors for lighting and next-generation display devices, attributed by high photoluminescence quantum yield, tunable emission colors and high color purity. How...
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| Veröffentlicht in: | Materials chemistry and physics 2021-09, Vol.270, p.124798, Article 124798 |
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| creator | Zhao, Xiaoyu Jia, Wenlong Wang, Huiqiang Yan, Guihua Sun, Yong Tang, Xing Zeng, Xianhai Lin, Lu |
| description | Perovskite quantum dots (PQDs) has been attracted enormous attention in optoelectronic fields, especially as highly efficient narrow-band phosphors for lighting and next-generation display devices, attributed by high photoluminescence quantum yield, tunable emission colors and high color purity. However, poor stability seriously impeded their practical applications. Here, we described a robust-stable CH3NH3PbBr3 PQDs/Ethyl Cellulose (EC) composite films with adjustable amounts of PQDs by ligand-assisted precipitation EC in one-step. The key to the preparation of CH3NH3PbBr3 PQDs/EC composite film is to achieve the supersaturated recrystallization of CH3NH3PbBr3 PQDs and the dissolution of EC in toluene. Combined with experimental results and investigated material characterization unveiles that the synthetic composite film possessed very high transparency, excellent down-conversion luminescence function and strong specific absorption in the ultraviolet region, which benefits form the excellent stability & hydrophobicity of EC, and long-term stable fluorescence performance in air or water under the protection of EC. Moreover, the fluorescence intensity maintained significantly stablility even after 1000 folds. In addition, the CH3NH3PbBr3 PQDs/EC composite film exhibited excellent flexibility, which made our composite film showed great potential in the field of flexible display.
•A simple synthesis method of EC/CH3NH3PbBr3 composite films is proposed to improve the stability of PQDs.•The composite film has high stability and retains the high PLQY of PQDs.•Composite film has very high application prospects in the field of flexible display. |
| doi_str_mv | 10.1016/j.matchemphys.2021.124798 |
| format | Article |
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•A simple synthesis method of EC/CH3NH3PbBr3 composite films is proposed to improve the stability of PQDs.•The composite film has high stability and retains the high PLQY of PQDs.•Composite film has very high application prospects in the field of flexible display.</description><identifier>ISSN: 0254-0584</identifier><identifier>EISSN: 1879-3312</identifier><identifier>DOI: 10.1016/j.matchemphys.2021.124798</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Cellulose ; Display devices ; Ethyl cellulose ; Flexible film ; Fluorescence ; Green LEDs ; Humidity stability ; Hydrophobicity ; Light emitting diodes ; Optoelectronics ; Perovskite quantum dots ; Perovskites ; Phosphors ; Photoluminescence ; Quantum dots ; Recrystallization ; Stability ; Toluene</subject><ispartof>Materials chemistry and physics, 2021-09, Vol.270, p.124798, Article 124798</ispartof><rights>2021 Elsevier B.V.</rights><rights>Copyright Elsevier BV Sep 15, 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c349t-bb9e3756a4d99457ce02a665d9363e2561b0218c4c51716ac1019e47e349f3e33</citedby><cites>FETCH-LOGICAL-c349t-bb9e3756a4d99457ce02a665d9363e2561b0218c4c51716ac1019e47e349f3e33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0254058421005812$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids></links><search><creatorcontrib>Zhao, Xiaoyu</creatorcontrib><creatorcontrib>Jia, Wenlong</creatorcontrib><creatorcontrib>Wang, Huiqiang</creatorcontrib><creatorcontrib>Yan, Guihua</creatorcontrib><creatorcontrib>Sun, Yong</creatorcontrib><creatorcontrib>Tang, Xing</creatorcontrib><creatorcontrib>Zeng, Xianhai</creatorcontrib><creatorcontrib>Lin, Lu</creatorcontrib><title>One-step preparation of excellent flexible ethyl cellulose composite film for LED</title><title>Materials chemistry and physics</title><description>Perovskite quantum dots (PQDs) has been attracted enormous attention in optoelectronic fields, especially as highly efficient narrow-band phosphors for lighting and next-generation display devices, attributed by high photoluminescence quantum yield, tunable emission colors and high color purity. However, poor stability seriously impeded their practical applications. Here, we described a robust-stable CH3NH3PbBr3 PQDs/Ethyl Cellulose (EC) composite films with adjustable amounts of PQDs by ligand-assisted precipitation EC in one-step. The key to the preparation of CH3NH3PbBr3 PQDs/EC composite film is to achieve the supersaturated recrystallization of CH3NH3PbBr3 PQDs and the dissolution of EC in toluene. Combined with experimental results and investigated material characterization unveiles that the synthetic composite film possessed very high transparency, excellent down-conversion luminescence function and strong specific absorption in the ultraviolet region, which benefits form the excellent stability & hydrophobicity of EC, and long-term stable fluorescence performance in air or water under the protection of EC. Moreover, the fluorescence intensity maintained significantly stablility even after 1000 folds. In addition, the CH3NH3PbBr3 PQDs/EC composite film exhibited excellent flexibility, which made our composite film showed great potential in the field of flexible display.
•A simple synthesis method of EC/CH3NH3PbBr3 composite films is proposed to improve the stability of PQDs.•The composite film has high stability and retains the high PLQY of PQDs.•Composite film has very high application prospects in the field of flexible display.</description><subject>Cellulose</subject><subject>Display devices</subject><subject>Ethyl cellulose</subject><subject>Flexible film</subject><subject>Fluorescence</subject><subject>Green LEDs</subject><subject>Humidity stability</subject><subject>Hydrophobicity</subject><subject>Light emitting diodes</subject><subject>Optoelectronics</subject><subject>Perovskite quantum dots</subject><subject>Perovskites</subject><subject>Phosphors</subject><subject>Photoluminescence</subject><subject>Quantum dots</subject><subject>Recrystallization</subject><subject>Stability</subject><subject>Toluene</subject><issn>0254-0584</issn><issn>1879-3312</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqNkEtLxDAUhYMoOI7-h4jr1qRJH1nKOD5gYBB0HdL0lklJm5pkxPn3ZhgXLl1duJzv3HsOQreU5JTQ6n7IRxX1DsZ5dwh5QQqa04LXojlDC9rUImOMFudoQYqSZ6Rs-CW6CmEghNaUsgV6206QhQgznj3Myqto3IRdj-Fbg7UwRdxb-DatBQxxd7D4uN5bFwBrN84umAi4N3bEvfN4s368Rhe9sgFufucSfTyt31cv2Wb7_Lp62GSacRGzthXA6rJSvBOCl7UGUqiqKjvBKgZFWdE2hWk012V6tVI6xRXAa0h0z4CxJbo7-c7efe4hRDm4vZ_SSZno5EhrVieVOKm0dyF46OXszaj8QVIijw3KQf5pUB4blKcGE7s6sZBifBnwMmgDk4bOeNBRds78w-UHtfd_ag</recordid><startdate>20210915</startdate><enddate>20210915</enddate><creator>Zhao, Xiaoyu</creator><creator>Jia, Wenlong</creator><creator>Wang, Huiqiang</creator><creator>Yan, Guihua</creator><creator>Sun, Yong</creator><creator>Tang, Xing</creator><creator>Zeng, Xianhai</creator><creator>Lin, Lu</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20210915</creationdate><title>One-step preparation of excellent flexible ethyl cellulose composite film for LED</title><author>Zhao, Xiaoyu ; Jia, Wenlong ; Wang, Huiqiang ; Yan, Guihua ; Sun, Yong ; Tang, Xing ; Zeng, Xianhai ; Lin, Lu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c349t-bb9e3756a4d99457ce02a665d9363e2561b0218c4c51716ac1019e47e349f3e33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Cellulose</topic><topic>Display devices</topic><topic>Ethyl cellulose</topic><topic>Flexible film</topic><topic>Fluorescence</topic><topic>Green LEDs</topic><topic>Humidity stability</topic><topic>Hydrophobicity</topic><topic>Light emitting diodes</topic><topic>Optoelectronics</topic><topic>Perovskite quantum dots</topic><topic>Perovskites</topic><topic>Phosphors</topic><topic>Photoluminescence</topic><topic>Quantum dots</topic><topic>Recrystallization</topic><topic>Stability</topic><topic>Toluene</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhao, Xiaoyu</creatorcontrib><creatorcontrib>Jia, Wenlong</creatorcontrib><creatorcontrib>Wang, Huiqiang</creatorcontrib><creatorcontrib>Yan, Guihua</creatorcontrib><creatorcontrib>Sun, Yong</creatorcontrib><creatorcontrib>Tang, Xing</creatorcontrib><creatorcontrib>Zeng, Xianhai</creatorcontrib><creatorcontrib>Lin, Lu</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Materials chemistry and physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhao, Xiaoyu</au><au>Jia, Wenlong</au><au>Wang, Huiqiang</au><au>Yan, Guihua</au><au>Sun, Yong</au><au>Tang, Xing</au><au>Zeng, Xianhai</au><au>Lin, Lu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>One-step preparation of excellent flexible ethyl cellulose composite film for LED</atitle><jtitle>Materials chemistry and physics</jtitle><date>2021-09-15</date><risdate>2021</risdate><volume>270</volume><spage>124798</spage><pages>124798-</pages><artnum>124798</artnum><issn>0254-0584</issn><eissn>1879-3312</eissn><abstract>Perovskite quantum dots (PQDs) has been attracted enormous attention in optoelectronic fields, especially as highly efficient narrow-band phosphors for lighting and next-generation display devices, attributed by high photoluminescence quantum yield, tunable emission colors and high color purity. However, poor stability seriously impeded their practical applications. Here, we described a robust-stable CH3NH3PbBr3 PQDs/Ethyl Cellulose (EC) composite films with adjustable amounts of PQDs by ligand-assisted precipitation EC in one-step. The key to the preparation of CH3NH3PbBr3 PQDs/EC composite film is to achieve the supersaturated recrystallization of CH3NH3PbBr3 PQDs and the dissolution of EC in toluene. Combined with experimental results and investigated material characterization unveiles that the synthetic composite film possessed very high transparency, excellent down-conversion luminescence function and strong specific absorption in the ultraviolet region, which benefits form the excellent stability & hydrophobicity of EC, and long-term stable fluorescence performance in air or water under the protection of EC. Moreover, the fluorescence intensity maintained significantly stablility even after 1000 folds. In addition, the CH3NH3PbBr3 PQDs/EC composite film exhibited excellent flexibility, which made our composite film showed great potential in the field of flexible display.
•A simple synthesis method of EC/CH3NH3PbBr3 composite films is proposed to improve the stability of PQDs.•The composite film has high stability and retains the high PLQY of PQDs.•Composite film has very high application prospects in the field of flexible display.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.matchemphys.2021.124798</doi></addata></record> |
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| subjects | Cellulose Display devices Ethyl cellulose Flexible film Fluorescence Green LEDs Humidity stability Hydrophobicity Light emitting diodes Optoelectronics Perovskite quantum dots Perovskites Phosphors Photoluminescence Quantum dots Recrystallization Stability Toluene |
| title | One-step preparation of excellent flexible ethyl cellulose composite film for LED |
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