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WFRF:(Rafie Zinedine Safi)
 

Sökning: WFRF:(Rafie Zinedine Safi) > Photoluminescence P...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00007362naa a2200493 4500
001oai:lup.lub.lu.se:db43bd28-18d8-4153-a749-0b43263d729a
003SwePub
008230125s2022 | |||||||||||000 ||eng|
0247 a https://lup.lub.lu.se/record/db43bd28-18d8-4153-a749-0b43263d729a2 URI
0247 a https://doi.org/10.1021/acsphotonics.2c011502 DOI
040 a (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Shi, Juanziu Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,Other operations, LTH,Faculty of Engineering, LTH,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH4 aut0 (Swepub:lu)ju5850sh
2451 0a Photoluminescence Polarization of MAPbBr3 Perovskite Nanostructures. Can the Dielectric Contrast Effect Explain It?
264 c 2022-11-17
264 1b American Chemical Society (ACS),c 2022
300 a 11 s.
520 a The dielectric contrast effect is usually evoked to explain anisotropy of optical properties of elongated nanoobjects, for example, semiconductor nanowires. We applied two-dimensional polarization imaging microscopy to measure the polarization of photoluminescence (PL) excitation and PL intensity of nanoaggregates of in-situ formed MAPbBr3perovskite nanoparticles in a stretched polymeric matrix. Scanning electron microscopy images of these objects were also acquired to characterize their sizes and shapes. We find that individual perovskite aggregates with sizes of 100-300 nm often possess a PL excitation polarization degree as high as 0.5-0.9, which is up to three times higher than the polarization degree of absorption predicted by the dielectric contrast effect. Small aggregates of nanoparticles possess an emission polarization degree substantially higher than that of excitation. Computer simulations of many possible scenarios show that the dielectric contrast alone cannot quantitatively explain the polarization properties of the studied objects. We propose energy transfer to localized emitting sites and the dependence of PL yield on excitation power density as possible factors strongly influencing the polarization properties of PL emission and PL excitation, respectively.
650 7a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng
653 a dielectric contrast
653 a energy transfer
653 a excitation power dependence
653 a perovskite aggregates
653 a polarized luminescence
653 a two-dimensional polarization imaging microscopy
7001 a Ryabov, Igoru Voevodsky Institute of Chemical Kinetics and Combustion4 aut
7001 a Seth, Sudiptau Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,LTH profilområde: Avancerade ljuskällor,Other operations, LTH,Faculty of Engineering, LTH,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH,LTH Profile Area: Photon Science and Technology,Faculty of Engineering, LTH4 aut0 (Swepub:lu)su0454se
7001 a Frantsuzov, Pavel A.u Voevodsky Institute of Chemical Kinetics and Combustion4 aut
7001 a Rafie-Zinedine, Safiu Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Atomfysik,Fysiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,Other operations, LTH,Faculty of Engineering, LTH,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH4 aut0 (Swepub:lu)sa5358ra
7001 a Walther, Andreasu Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Atomfysik,Fysiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,LTH profilområde: Avancerade ljuskällor,LTH profilområde: Teknik för hälsa,Other operations, LTH,Faculty of Engineering, LTH,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH,LTH Profile Area: Photon Science and Technology,Faculty of Engineering, LTH,LTH Profile Area: Engineering Health,Faculty of Engineering, LTH4 aut0 (Swepub:lu)fysi-aw0
7001 a Messing, Maria E.u Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,LTH profilområde: Aerosoler,LTH profilområden,LTH profilområde: Nanovetenskap och halvledarteknologi,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Aerosols,LTH Profile areas,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,Faculty of Engineering, LTH4 aut0 (Swepub:lu)ftf-mmi
7001 a Wu, Xiangangu Beijing Institute of Technology4 aut
7001 a Lu, Wengaou Beijing Institute of Technology4 aut
7001 a Zhong, Haizhengu Beijing Institute of Technology4 aut
7001 a Scheblykin, Ivan G.u Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,LTH profilområde: Avancerade ljuskällor,Other operations, LTH,Faculty of Engineering, LTH,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH,LTH Profile Area: Photon Science and Technology,Faculty of Engineering, LTH4 aut0 (Swepub:lu)chem-isc
7102 a NanoLund: Centre for Nanoscienceb Annan verksamhet, LTH4 org
7730 t ACS Photonicsd : American Chemical Society (ACS)g 9:12, s. 3888-3898q 9:12<3888-3898x 2330-4022
8564 u http://dx.doi.org/10.1021/acsphotonics.2c01150x freey FULLTEXT
8564 8u https://lup.lub.lu.se/record/db43bd28-18d8-4153-a749-0b43263d729a
8564 8u https://doi.org/10.1021/acsphotonics.2c01150

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