Pressure‐Suppressed Carrier Trapping Leads to Enhanced Emission in Two‐Dimensional Perovskite (HA)2(GA)Pb2I7
A remarkable PL enhancement by 12 fold is achieved using pressure to modulate the structure of a recently developed 2D perovskite (HA)2(GA)Pb2I7 (HA=n‐hexylammonium, GA=guanidinium). This structure features a previously unattainable, extremely large cage. In situ structural, spectroscopic, and theor...
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| Veröffentlicht in: | Angewandte Chemie International Edition 2020-09, Vol.59 (40), p.17533-17539 |
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| creator | Guo, Songhao Zhao, Yongsheng Bu, Kejun Fu, Yongping Luo, Hui Chen, Mengting Hautzinger, Matthew P. Wang, Yingqi Jin, Song Yang, Wenge Lü, Xujie |
| description | A remarkable PL enhancement by 12 fold is achieved using pressure to modulate the structure of a recently developed 2D perovskite (HA)2(GA)Pb2I7 (HA=n‐hexylammonium, GA=guanidinium). This structure features a previously unattainable, extremely large cage. In situ structural, spectroscopic, and theoretical analyses reveal that lattice compression under a mild pressure within 1.6 GPa considerably suppresses the carrier trapping, leading to significantly enhanced emission. Further pressurization induces a non‐luminescent amorphous yellow phase, which is retained and exhibits a continuously increasing band gap during decompression. When the pressure is released to 1.5 GPa, emission can be triggered by above‐band gap laser irradiation, accompanied by a color change from yellow to orange. The obtained orange phase could be retained at ambient conditions and exhibits two‐fold higher PL emission compared with the pristine (HA)2(GA)Pb2I7.
A remarkably enhanced emission (by 12‐fold) is achieved using pressure to modulate the structure of a highly distorted 2D halide perovskite (HA)2(GA)Pb2I7. In situ structural, spectroscopic, and theoretical analyses reveal that lattice compression under a mild pressure within 1.6 GPa considerably suppresses the carrier trapping, leading to the significantly improved performance. |
| doi_str_mv | 10.1002/anie.202001635 |
| format | Article |
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A remarkably enhanced emission (by 12‐fold) is achieved using pressure to modulate the structure of a highly distorted 2D halide perovskite (HA)2(GA)Pb2I7. In situ structural, spectroscopic, and theoretical analyses reveal that lattice compression under a mild pressure within 1.6 GPa considerably suppresses the carrier trapping, leading to the significantly improved performance.</description><edition>International ed. in English</edition><identifier>ISSN: 1433-7851</identifier><identifier>EISSN: 1521-3773</identifier><identifier>DOI: 10.1002/anie.202001635</identifier><language>eng</language><publisher>Weinheim: Wiley Subscription Services, Inc</publisher><subject>2D halide perovskites ; carrier trapping ; Compression ; Decompression ; Emissions ; Energy gap ; high-pressure chemistry ; Irradiation ; Perovskites ; phase transitions ; photoluminescence enhancement ; Pressure ; Pressurization ; Trapping</subject><ispartof>Angewandte Chemie International Edition, 2020-09, Vol.59 (40), p.17533-17539</ispartof><rights>2020 Wiley‐VCH GmbH</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0001-8402-7160</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%2Fanie.202001635$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fanie.202001635$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>315,781,785,1418,27929,27930,45579,45580</link.rule.ids></links><search><creatorcontrib>Guo, Songhao</creatorcontrib><creatorcontrib>Zhao, Yongsheng</creatorcontrib><creatorcontrib>Bu, Kejun</creatorcontrib><creatorcontrib>Fu, Yongping</creatorcontrib><creatorcontrib>Luo, Hui</creatorcontrib><creatorcontrib>Chen, Mengting</creatorcontrib><creatorcontrib>Hautzinger, Matthew P.</creatorcontrib><creatorcontrib>Wang, Yingqi</creatorcontrib><creatorcontrib>Jin, Song</creatorcontrib><creatorcontrib>Yang, Wenge</creatorcontrib><creatorcontrib>Lü, Xujie</creatorcontrib><title>Pressure‐Suppressed Carrier Trapping Leads to Enhanced Emission in Two‐Dimensional Perovskite (HA)2(GA)Pb2I7</title><title>Angewandte Chemie International Edition</title><description>A remarkable PL enhancement by 12 fold is achieved using pressure to modulate the structure of a recently developed 2D perovskite (HA)2(GA)Pb2I7 (HA=n‐hexylammonium, GA=guanidinium). This structure features a previously unattainable, extremely large cage. In situ structural, spectroscopic, and theoretical analyses reveal that lattice compression under a mild pressure within 1.6 GPa considerably suppresses the carrier trapping, leading to significantly enhanced emission. Further pressurization induces a non‐luminescent amorphous yellow phase, which is retained and exhibits a continuously increasing band gap during decompression. When the pressure is released to 1.5 GPa, emission can be triggered by above‐band gap laser irradiation, accompanied by a color change from yellow to orange. The obtained orange phase could be retained at ambient conditions and exhibits two‐fold higher PL emission compared with the pristine (HA)2(GA)Pb2I7.
A remarkably enhanced emission (by 12‐fold) is achieved using pressure to modulate the structure of a highly distorted 2D halide perovskite (HA)2(GA)Pb2I7. In situ structural, spectroscopic, and theoretical analyses reveal that lattice compression under a mild pressure within 1.6 GPa considerably suppresses the carrier trapping, leading to the significantly improved performance.</description><subject>2D halide perovskites</subject><subject>carrier trapping</subject><subject>Compression</subject><subject>Decompression</subject><subject>Emissions</subject><subject>Energy gap</subject><subject>high-pressure chemistry</subject><subject>Irradiation</subject><subject>Perovskites</subject><subject>phase transitions</subject><subject>photoluminescence enhancement</subject><subject>Pressure</subject><subject>Pressurization</subject><subject>Trapping</subject><issn>1433-7851</issn><issn>1521-3773</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNo9kEFPwjAUxxujiYhePTfxAodhX9ut3XHBCSRESdy9KazDImyzZRJufgQ_o5_ELRhO7_1ffu_l5YfQPZAREEIfdWnNiBJKCEQsvEA9CCkETAh22facsUDIEK7RjfeblpeSRD1UL5zxvnHm9_vnranrLpkcj7Vz1jicOV3XtlzjudG5x_sKp-W7Llctku6s97YqsS1xdqja_Se7M2U30lu8MK768h92b_BgmgzpYJIMF0s6E7foqtBbb-7-ax9lz2k2ngbz18lsnMyDNY0hDHRehMTEsIpNnENYREIsqWBxwblhUhhaMBIBwIqCjDQHoDHLC8lDEREJkvXRw-ls7arPxvi92lSNaz_zinLOqQQOoqXiE3WwW3NUtbM77Y4KiOqMqs6oOhtVycssPSf2BxGRbHs</recordid><startdate>20200928</startdate><enddate>20200928</enddate><creator>Guo, Songhao</creator><creator>Zhao, Yongsheng</creator><creator>Bu, Kejun</creator><creator>Fu, Yongping</creator><creator>Luo, Hui</creator><creator>Chen, Mengting</creator><creator>Hautzinger, Matthew P.</creator><creator>Wang, Yingqi</creator><creator>Jin, Song</creator><creator>Yang, Wenge</creator><creator>Lü, Xujie</creator><general>Wiley Subscription Services, Inc</general><scope>7TM</scope><scope>K9.</scope><orcidid>https://orcid.org/0000-0001-8402-7160</orcidid></search><sort><creationdate>20200928</creationdate><title>Pressure‐Suppressed Carrier Trapping Leads to Enhanced Emission in Two‐Dimensional Perovskite (HA)2(GA)Pb2I7</title><author>Guo, Songhao ; Zhao, Yongsheng ; Bu, Kejun ; Fu, Yongping ; Luo, Hui ; Chen, Mengting ; Hautzinger, Matthew P. ; Wang, Yingqi ; Jin, Song ; Yang, Wenge ; Lü, Xujie</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g2915-adf50e91c9e9d15f677b2739f44e387e2f306111c2186a411293df8457608183</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>2D halide perovskites</topic><topic>carrier trapping</topic><topic>Compression</topic><topic>Decompression</topic><topic>Emissions</topic><topic>Energy gap</topic><topic>high-pressure chemistry</topic><topic>Irradiation</topic><topic>Perovskites</topic><topic>phase transitions</topic><topic>photoluminescence enhancement</topic><topic>Pressure</topic><topic>Pressurization</topic><topic>Trapping</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Guo, Songhao</creatorcontrib><creatorcontrib>Zhao, Yongsheng</creatorcontrib><creatorcontrib>Bu, Kejun</creatorcontrib><creatorcontrib>Fu, Yongping</creatorcontrib><creatorcontrib>Luo, Hui</creatorcontrib><creatorcontrib>Chen, Mengting</creatorcontrib><creatorcontrib>Hautzinger, Matthew P.</creatorcontrib><creatorcontrib>Wang, Yingqi</creatorcontrib><creatorcontrib>Jin, Song</creatorcontrib><creatorcontrib>Yang, Wenge</creatorcontrib><creatorcontrib>Lü, Xujie</creatorcontrib><collection>Nucleic Acids Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><jtitle>Angewandte Chemie International Edition</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Guo, Songhao</au><au>Zhao, Yongsheng</au><au>Bu, Kejun</au><au>Fu, Yongping</au><au>Luo, Hui</au><au>Chen, Mengting</au><au>Hautzinger, Matthew P.</au><au>Wang, Yingqi</au><au>Jin, Song</au><au>Yang, Wenge</au><au>Lü, Xujie</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pressure‐Suppressed Carrier Trapping Leads to Enhanced Emission in Two‐Dimensional Perovskite (HA)2(GA)Pb2I7</atitle><jtitle>Angewandte Chemie International Edition</jtitle><date>2020-09-28</date><risdate>2020</risdate><volume>59</volume><issue>40</issue><spage>17533</spage><epage>17539</epage><pages>17533-17539</pages><issn>1433-7851</issn><eissn>1521-3773</eissn><abstract>A remarkable PL enhancement by 12 fold is achieved using pressure to modulate the structure of a recently developed 2D perovskite (HA)2(GA)Pb2I7 (HA=n‐hexylammonium, GA=guanidinium). This structure features a previously unattainable, extremely large cage. In situ structural, spectroscopic, and theoretical analyses reveal that lattice compression under a mild pressure within 1.6 GPa considerably suppresses the carrier trapping, leading to significantly enhanced emission. Further pressurization induces a non‐luminescent amorphous yellow phase, which is retained and exhibits a continuously increasing band gap during decompression. When the pressure is released to 1.5 GPa, emission can be triggered by above‐band gap laser irradiation, accompanied by a color change from yellow to orange. The obtained orange phase could be retained at ambient conditions and exhibits two‐fold higher PL emission compared with the pristine (HA)2(GA)Pb2I7.
A remarkably enhanced emission (by 12‐fold) is achieved using pressure to modulate the structure of a highly distorted 2D halide perovskite (HA)2(GA)Pb2I7. In situ structural, spectroscopic, and theoretical analyses reveal that lattice compression under a mild pressure within 1.6 GPa considerably suppresses the carrier trapping, leading to the significantly improved performance.</abstract><cop>Weinheim</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/anie.202001635</doi><tpages>7</tpages><edition>International ed. in English</edition><orcidid>https://orcid.org/0000-0001-8402-7160</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | 2D halide perovskites carrier trapping Compression Decompression Emissions Energy gap high-pressure chemistry Irradiation Perovskites phase transitions photoluminescence enhancement Pressure Pressurization Trapping |
| title | Pressure‐Suppressed Carrier Trapping Leads to Enhanced Emission in Two‐Dimensional Perovskite (HA)2(GA)Pb2I7 |
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