The recombination mechanisms leading to amplified spontaneous emission at thetrue-green wavelength in CH3NH3PbBr3perovskites
We investigated the mechanisms of radiative recombination in aCH3NH3PbBr3hybridperovskitematerialusing low-temperature, power-dependent (77 K), and temperature-dependentphotoluminescence(PL)measurements. Twobound-excitonic radiative transitions related to grain size inhomogeneity were identified.Bot...
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| Veröffentlicht in: | Applied physics letters 2015-02, Vol.106 (8) |
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| container_title | Applied physics letters |
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| creator | Priante, D Dursun, I Alias, M S Shi, D Melnikov, V A Ng, T K Mohammed, O F Bakr, O M Ooi, B S |
| description | We investigated the mechanisms of radiative recombination in aCH3NH3PbBr3hybridperovskitematerialusing low-temperature, power-dependent (77 K), and temperature-dependentphotoluminescence(PL)measurements. Twobound-excitonic radiative transitions related to grain size inhomogeneity were identified.Both transitions led to PL spectra broadening as a result of concurrent blue and red shifts of these excitonicpeaks. The red-shifted bound-excitonic peak dominated at high PL excitation led to atrue-green wavelength of 553 nm for CH3NH3PbBr3powders that areencapsulated in polydimethylsiloxane. Amplified spontaneous emission was eventually achieved for anexcitation threshold energy of approximately 350 μJ/cm2. Ourresults provide a platform for potential extension towards a true-green light-emittingdevice for solid-state lighting and display applications. |
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Twobound-excitonic radiative transitions related to grain size inhomogeneity were identified.Both transitions led to PL spectra broadening as a result of concurrent blue and red shifts of these excitonicpeaks. The red-shifted bound-excitonic peak dominated at high PL excitation led to atrue-green wavelength of 553 nm for CH3NH3PbBr3powders that areencapsulated in polydimethylsiloxane. Amplified spontaneous emission was eventually achieved for anexcitation threshold energy of approximately 350 μJ/cm2. Ourresults provide a platform for potential extension towards a true-green light-emittingdevice for solid-state lighting and display applications.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Amplification ; Applied physics ; Emission analysis ; Inhomogeneity ; Polydimethylsiloxane ; Quantum theory ; Radiative recombination ; Spontaneous emission ; Temperature dependence</subject><ispartof>Applied physics letters, 2015-02, Vol.106 (8)</ispartof><rights>2015 Author(s). 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Twobound-excitonic radiative transitions related to grain size inhomogeneity were identified.Both transitions led to PL spectra broadening as a result of concurrent blue and red shifts of these excitonicpeaks. The red-shifted bound-excitonic peak dominated at high PL excitation led to atrue-green wavelength of 553 nm for CH3NH3PbBr3powders that areencapsulated in polydimethylsiloxane. Amplified spontaneous emission was eventually achieved for anexcitation threshold energy of approximately 350 μJ/cm2. Ourresults provide a platform for potential extension towards a true-green light-emittingdevice for solid-state lighting and display applications.</description><subject>Amplification</subject><subject>Applied physics</subject><subject>Emission analysis</subject><subject>Inhomogeneity</subject><subject>Polydimethylsiloxane</subject><subject>Quantum theory</subject><subject>Radiative recombination</subject><subject>Spontaneous emission</subject><subject>Temperature dependence</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqNi8FKw0AQhhdRMFbfYcBzIJtpTXu1KDmJh97Ltp0mU7OzcWdSLz68FXwATz8f3_dfucJXTVOi98trV1RVheXTauFv3Z3q6YKLGrFw35ueINM-xR1LME4CkfZ9ENaoMFA4sHRgCUIcBz4yHUDHJBaE0qRAkVV_T8HAerI8UdllIoGvcKaBpLMeWGDd4luL77vnjCPldNYPNtJ7d3MMg9LD387c4-vLZt2WY06fE6ltT2nKclHb2tfz5WreYIP_q34AjFlRSg</recordid><startdate>20150223</startdate><enddate>20150223</enddate><creator>Priante, D</creator><creator>Dursun, I</creator><creator>Alias, M S</creator><creator>Shi, D</creator><creator>Melnikov, V A</creator><creator>Ng, T K</creator><creator>Mohammed, O F</creator><creator>Bakr, O M</creator><creator>Ooi, B S</creator><general>American Institute of Physics</general><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20150223</creationdate><title>The recombination mechanisms leading to amplified spontaneous emission at thetrue-green wavelength in CH3NH3PbBr3perovskites</title><author>Priante, D ; Dursun, I ; Alias, M S ; Shi, D ; Melnikov, V A ; Ng, T K ; Mohammed, O F ; Bakr, O M ; Ooi, B S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_journals_21248947373</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Amplification</topic><topic>Applied physics</topic><topic>Emission analysis</topic><topic>Inhomogeneity</topic><topic>Polydimethylsiloxane</topic><topic>Quantum theory</topic><topic>Radiative recombination</topic><topic>Spontaneous emission</topic><topic>Temperature dependence</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Priante, D</creatorcontrib><creatorcontrib>Dursun, I</creatorcontrib><creatorcontrib>Alias, M S</creatorcontrib><creatorcontrib>Shi, D</creatorcontrib><creatorcontrib>Melnikov, V A</creatorcontrib><creatorcontrib>Ng, T K</creatorcontrib><creatorcontrib>Mohammed, O F</creatorcontrib><creatorcontrib>Bakr, O M</creatorcontrib><creatorcontrib>Ooi, B S</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Priante, D</au><au>Dursun, I</au><au>Alias, M S</au><au>Shi, D</au><au>Melnikov, V A</au><au>Ng, T K</au><au>Mohammed, O F</au><au>Bakr, O M</au><au>Ooi, B S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The recombination mechanisms leading to amplified spontaneous emission at thetrue-green wavelength in CH3NH3PbBr3perovskites</atitle><jtitle>Applied physics letters</jtitle><date>2015-02-23</date><risdate>2015</risdate><volume>106</volume><issue>8</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><abstract>We investigated the mechanisms of radiative recombination in aCH3NH3PbBr3hybridperovskitematerialusing low-temperature, power-dependent (77 K), and temperature-dependentphotoluminescence(PL)measurements. Twobound-excitonic radiative transitions related to grain size inhomogeneity were identified.Both transitions led to PL spectra broadening as a result of concurrent blue and red shifts of these excitonicpeaks. The red-shifted bound-excitonic peak dominated at high PL excitation led to atrue-green wavelength of 553 nm for CH3NH3PbBr3powders that areencapsulated in polydimethylsiloxane. Amplified spontaneous emission was eventually achieved for anexcitation threshold energy of approximately 350 μJ/cm2. Ourresults provide a platform for potential extension towards a true-green light-emittingdevice for solid-state lighting and display applications.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub></addata></record> |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Amplification Applied physics Emission analysis Inhomogeneity Polydimethylsiloxane Quantum theory Radiative recombination Spontaneous emission Temperature dependence |
| title | The recombination mechanisms leading to amplified spontaneous emission at thetrue-green wavelength in CH3NH3PbBr3perovskites |
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