Bright Structural‐Phase‐Pure CsPbI3 Core‐PbSO4 Shell Nanoplatelets With Ultra‐Narrow Emission Bandwidth of 77 meV at 630 nm
Achieving a narrow emission bandwidth is long pursued for display applications. Among all primary colors, obtaining pure red emission with high visual perception is the most challenging. In this work, CsPbI3 halide perovskite nanoplatelets (NPLs) with rigorously controlled 2D [PbI6]4− octahedron la...
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| creator | Tsai, Ping‐Hsun Liao, Tzu‐Hao Chuang, Yung‐Tang Jan, Pei‐En Lin, Hao‐Cheng Tan, Guang‐Hsun Hsiao, Kai‐Yuan Lu, Ming‐Yen Lai, Hoong‐Lien Chiu, Po‐Wei Sun, Sheng‐Yuan Li, Yun‐Li Lin, Hao‐Wu |
| description | Achieving a narrow emission bandwidth is long pursued for display applications. Among all primary colors, obtaining pure red emission with high visual perception is the most challenging. In this work, CsPbI3 halide perovskite nanoplatelets (NPLs) with rigorously controlled 2D [PbI6]4− octahedron layer number (n) are demonstrated. A perovskite core‐PbSO4 shell structure is designed to prevent aggregation and fusion between NPLs, enabling consistent thickness and quantum confinement strength for each NPL. Consequently, exact n = 4 CsPbI3 NPLs are demonstrated, exhibiting emission peaks around 630 nm, with very narrow spectral bandwidths of |
| doi_str_mv | 10.1002/smll.202404573 |
| format | Article |
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The “core” of innovation with the “shell” of satisfaction. A highly stable and emissive CsPbI3 nanoplatelet‐core‐PbSO4‐shell structure is designed. The [PbI6]4‐ octahedron layer number (n) = 4 CsPbI3 nanoplatelets exhibit an ultra‐thin emission bandwidth of 77 meV (24 nm) at 630 nm, a photoluminescence quantum yield of 85%, and superior photo‐, thermal, and long‐term stability.</description><identifier>ISSN: 1613-6810</identifier><identifier>ISSN: 1613-6829</identifier><identifier>EISSN: 1613-6829</identifier><identifier>DOI: 10.1002/smll.202404573</identifier><language>eng</language><publisher>Weinheim: Wiley Subscription Services, Inc</publisher><subject>Brightness ; Color ; core–shell ; CsPbI3 ; Homogeneity ; inorganic halide perovskite ; Light emitting diodes ; nanoplatelets ; Perovskites ; Photoluminescence ; Platelets (materials) ; Quantum confinement ; Quantum efficiency ; rec. 2020 pure red ; Shells (structural forms) ; Spectral emittance ; Stability ; structural phase‐pure ; Thickness ; Visual perception</subject><ispartof>Small (Weinheim an der Bergstrasse, Germany), 2024-12, Vol.20 (49), p.e2404573-n/a</ispartof><rights>2024 Wiley‐VCH GmbH</rights><rights>2024 Wiley‐VCH GmbH.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0003-4216-7995</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fsmll.202404573$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fsmll.202404573$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Tsai, Ping‐Hsun</creatorcontrib><creatorcontrib>Liao, Tzu‐Hao</creatorcontrib><creatorcontrib>Chuang, Yung‐Tang</creatorcontrib><creatorcontrib>Jan, Pei‐En</creatorcontrib><creatorcontrib>Lin, Hao‐Cheng</creatorcontrib><creatorcontrib>Tan, Guang‐Hsun</creatorcontrib><creatorcontrib>Hsiao, Kai‐Yuan</creatorcontrib><creatorcontrib>Lu, Ming‐Yen</creatorcontrib><creatorcontrib>Lai, Hoong‐Lien</creatorcontrib><creatorcontrib>Chiu, Po‐Wei</creatorcontrib><creatorcontrib>Sun, Sheng‐Yuan</creatorcontrib><creatorcontrib>Li, Yun‐Li</creatorcontrib><creatorcontrib>Lin, Hao‐Wu</creatorcontrib><title>Bright Structural‐Phase‐Pure CsPbI3 Core‐PbSO4 Shell Nanoplatelets With Ultra‐Narrow Emission Bandwidth of 77 meV at 630 nm</title><title>Small (Weinheim an der Bergstrasse, Germany)</title><description>Achieving a narrow emission bandwidth is long pursued for display applications. Among all primary colors, obtaining pure red emission with high visual perception is the most challenging. In this work, CsPbI3 halide perovskite nanoplatelets (NPLs) with rigorously controlled 2D [PbI6]4− octahedron layer number (n) are demonstrated. A perovskite core‐PbSO4 shell structure is designed to prevent aggregation and fusion between NPLs, enabling consistent thickness and quantum confinement strength for each NPL. Consequently, exact n = 4 CsPbI3 NPLs are demonstrated, exhibiting emission peaks around 630 nm, with very narrow spectral bandwidths of <24 nm and high absolute photoluminescence quantum yields up to 85%. The emission of n = 4 NPLs falls exactly within the pure‐red region, closely aligning with the International Telecommunication Union Recommendation BT.2020 standard. Measurements suggest predominant stability and color homogeneity compared to traditional red‐emitting CsPbIxBr3−x nanocrystals. Finally, proof‐of‐concept pure‐red emissive light‐emitting diodes (LEDs) are demonstrated by integrating n = 4 CsPbI3 NPLs films with a blue LED chip, showing an excellent external quantum efficiency of 18.3% and high brightness exceeding 3 × 106 nits. Stringent requirements for future display technologies, are satisfied based on the high color purity, stability, and brightness of CsPbI3 NPLs.
The “core” of innovation with the “shell” of satisfaction. A highly stable and emissive CsPbI3 nanoplatelet‐core‐PbSO4‐shell structure is designed. The [PbI6]4‐ octahedron layer number (n) = 4 CsPbI3 nanoplatelets exhibit an ultra‐thin emission bandwidth of 77 meV (24 nm) at 630 nm, a photoluminescence quantum yield of 85%, and superior photo‐, thermal, and long‐term stability.</description><subject>Brightness</subject><subject>Color</subject><subject>core–shell</subject><subject>CsPbI3</subject><subject>Homogeneity</subject><subject>inorganic halide perovskite</subject><subject>Light emitting diodes</subject><subject>nanoplatelets</subject><subject>Perovskites</subject><subject>Photoluminescence</subject><subject>Platelets (materials)</subject><subject>Quantum confinement</subject><subject>Quantum efficiency</subject><subject>rec. 2020 pure red</subject><subject>Shells (structural forms)</subject><subject>Spectral emittance</subject><subject>Stability</subject><subject>structural phase‐pure</subject><subject>Thickness</subject><subject>Visual perception</subject><issn>1613-6810</issn><issn>1613-6829</issn><issn>1613-6829</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNpd0UtLAzEQB_AgCtbq1XPAi5eteXUfR7v4KNS2UKvHJbs7a7dkHyZZSm-CX8DP6CcxtdKDp8mEH8MMf4QuKRlQQtiNqZQaMMIEEcOAH6Ee9Sn3_JBFx4c3JafozJg1IZwyEfTQ50iXbyuLF1Z3me20VN8fX_OVNLCrnQYcm3k65jhu9O9XupgJvFiBUngq66ZV0oICa_BraVd4qayWjk2l1s0G31WlMWVT45Gs802ZO9EUOAhwBS9YWuxzguvqHJ0UUhm4-Kt9tLy_e44fvcnsYRzfTryWRj73hnlOReFzYKHgucggDIUfFoxwP8sKyNNU5kBTiCSTMCyiICVZQfOsiDLuLPA-ut7PbXXz3oGxiVsvc5fIGprOJJySoYg4CQJHr_7RddPp2m3nlCAhC3winIr2alMq2CatLiuptwklyS6QZBdIcggkWTxNJoeO_wDA3YXM</recordid><startdate>20241201</startdate><enddate>20241201</enddate><creator>Tsai, Ping‐Hsun</creator><creator>Liao, Tzu‐Hao</creator><creator>Chuang, Yung‐Tang</creator><creator>Jan, Pei‐En</creator><creator>Lin, Hao‐Cheng</creator><creator>Tan, Guang‐Hsun</creator><creator>Hsiao, Kai‐Yuan</creator><creator>Lu, Ming‐Yen</creator><creator>Lai, Hoong‐Lien</creator><creator>Chiu, Po‐Wei</creator><creator>Sun, Sheng‐Yuan</creator><creator>Li, Yun‐Li</creator><creator>Lin, Hao‐Wu</creator><general>Wiley Subscription Services, Inc</general><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-4216-7995</orcidid></search><sort><creationdate>20241201</creationdate><title>Bright Structural‐Phase‐Pure CsPbI3 Core‐PbSO4 Shell Nanoplatelets With Ultra‐Narrow Emission Bandwidth of 77 meV at 630 nm</title><author>Tsai, Ping‐Hsun ; Liao, Tzu‐Hao ; Chuang, Yung‐Tang ; Jan, Pei‐En ; Lin, Hao‐Cheng ; Tan, Guang‐Hsun ; Hsiao, Kai‐Yuan ; Lu, Ming‐Yen ; Lai, Hoong‐Lien ; Chiu, Po‐Wei ; Sun, Sheng‐Yuan ; Li, Yun‐Li ; Lin, Hao‐Wu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p1963-5dd14f63e2843d4ce88468f2036ccfedbbade1be9a2ae5f97b0cf1dcf9c3e88e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Brightness</topic><topic>Color</topic><topic>core–shell</topic><topic>CsPbI3</topic><topic>Homogeneity</topic><topic>inorganic halide perovskite</topic><topic>Light emitting diodes</topic><topic>nanoplatelets</topic><topic>Perovskites</topic><topic>Photoluminescence</topic><topic>Platelets (materials)</topic><topic>Quantum confinement</topic><topic>Quantum efficiency</topic><topic>rec. 2020 pure red</topic><topic>Shells (structural forms)</topic><topic>Spectral emittance</topic><topic>Stability</topic><topic>structural phase‐pure</topic><topic>Thickness</topic><topic>Visual perception</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tsai, Ping‐Hsun</creatorcontrib><creatorcontrib>Liao, Tzu‐Hao</creatorcontrib><creatorcontrib>Chuang, Yung‐Tang</creatorcontrib><creatorcontrib>Jan, Pei‐En</creatorcontrib><creatorcontrib>Lin, Hao‐Cheng</creatorcontrib><creatorcontrib>Tan, Guang‐Hsun</creatorcontrib><creatorcontrib>Hsiao, Kai‐Yuan</creatorcontrib><creatorcontrib>Lu, Ming‐Yen</creatorcontrib><creatorcontrib>Lai, Hoong‐Lien</creatorcontrib><creatorcontrib>Chiu, Po‐Wei</creatorcontrib><creatorcontrib>Sun, Sheng‐Yuan</creatorcontrib><creatorcontrib>Li, Yun‐Li</creatorcontrib><creatorcontrib>Lin, Hao‐Wu</creatorcontrib><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><collection>MEDLINE - Academic</collection><jtitle>Small (Weinheim an der Bergstrasse, Germany)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tsai, Ping‐Hsun</au><au>Liao, Tzu‐Hao</au><au>Chuang, Yung‐Tang</au><au>Jan, Pei‐En</au><au>Lin, Hao‐Cheng</au><au>Tan, Guang‐Hsun</au><au>Hsiao, Kai‐Yuan</au><au>Lu, Ming‐Yen</au><au>Lai, Hoong‐Lien</au><au>Chiu, Po‐Wei</au><au>Sun, Sheng‐Yuan</au><au>Li, Yun‐Li</au><au>Lin, Hao‐Wu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Bright Structural‐Phase‐Pure CsPbI3 Core‐PbSO4 Shell Nanoplatelets With Ultra‐Narrow Emission Bandwidth of 77 meV at 630 nm</atitle><jtitle>Small (Weinheim an der Bergstrasse, Germany)</jtitle><date>2024-12-01</date><risdate>2024</risdate><volume>20</volume><issue>49</issue><spage>e2404573</spage><epage>n/a</epage><pages>e2404573-n/a</pages><issn>1613-6810</issn><issn>1613-6829</issn><eissn>1613-6829</eissn><abstract>Achieving a narrow emission bandwidth is long pursued for display applications. Among all primary colors, obtaining pure red emission with high visual perception is the most challenging. In this work, CsPbI3 halide perovskite nanoplatelets (NPLs) with rigorously controlled 2D [PbI6]4− octahedron layer number (n) are demonstrated. A perovskite core‐PbSO4 shell structure is designed to prevent aggregation and fusion between NPLs, enabling consistent thickness and quantum confinement strength for each NPL. Consequently, exact n = 4 CsPbI3 NPLs are demonstrated, exhibiting emission peaks around 630 nm, with very narrow spectral bandwidths of <24 nm and high absolute photoluminescence quantum yields up to 85%. The emission of n = 4 NPLs falls exactly within the pure‐red region, closely aligning with the International Telecommunication Union Recommendation BT.2020 standard. Measurements suggest predominant stability and color homogeneity compared to traditional red‐emitting CsPbIxBr3−x nanocrystals. Finally, proof‐of‐concept pure‐red emissive light‐emitting diodes (LEDs) are demonstrated by integrating n = 4 CsPbI3 NPLs films with a blue LED chip, showing an excellent external quantum efficiency of 18.3% and high brightness exceeding 3 × 106 nits. Stringent requirements for future display technologies, are satisfied based on the high color purity, stability, and brightness of CsPbI3 NPLs.
The “core” of innovation with the “shell” of satisfaction. A highly stable and emissive CsPbI3 nanoplatelet‐core‐PbSO4‐shell structure is designed. The [PbI6]4‐ octahedron layer number (n) = 4 CsPbI3 nanoplatelets exhibit an ultra‐thin emission bandwidth of 77 meV (24 nm) at 630 nm, a photoluminescence quantum yield of 85%, and superior photo‐, thermal, and long‐term stability.</abstract><cop>Weinheim</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/smll.202404573</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0003-4216-7995</orcidid></addata></record> |
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| subjects | Brightness Color core–shell CsPbI3 Homogeneity inorganic halide perovskite Light emitting diodes nanoplatelets Perovskites Photoluminescence Platelets (materials) Quantum confinement Quantum efficiency rec. 2020 pure red Shells (structural forms) Spectral emittance Stability structural phase‐pure Thickness Visual perception |
| title | Bright Structural‐Phase‐Pure CsPbI3 Core‐PbSO4 Shell Nanoplatelets With Ultra‐Narrow Emission Bandwidth of 77 meV at 630 nm |
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