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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201706186
|2 doi
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|a pubmed24n0939.xml
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|a (DE-627)NLM281733368
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|a (NLM)29516558
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Zhang, Haihua
|e verfasserin
|4 aut
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| 245 |
1 |
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|a 2D Ruddlesden-Popper Perovskites Microring Laser Array
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 01.08.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a 3D organic-inorganic hybrid perovskites have featured high gain coefficients through the electron-hole plasma stimulated emission mechanism, while their 2D counterparts of Ruddlesden-Popper perovskites (RPPs) exhibit strongly bound electron-hole pairs (excitons) at room temperature. High-performance solar cells and light-emitting diodes (LEDs) are reported based on 2D RPPs, whereas light-amplification devices remain largely unexplored. Here, it is demonstrated that ultrafast energy transfer along cascade quantum well (QW) structures in 2D RPPs concentrates photogenerated carriers on the lowest-bandgap QW state, at which population inversion can be readily established enabling room-temperature amplified spontaneous emission and lasing. Gain coefficients measured for 2D RPP thin-films (≈100 nm in thickness) are found about at least four times larger than those for their 3D counterparts. High-density large-area microring arrays of 2D RPPs are fabricated as whispering-gallery-mode lasers, which exhibit high quality factor (Q ≈ 2600), identical optical modes, and similarly low lasing thresholds, allowing them to be ignited simultaneously as a laser array. The findings reveal that 2D RPPs are excellent solution-processed gain materials potentially for achieving electrically driven lasers and ideally for on-chip integration of nanophotonics
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|a Journal Article
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|a 2D perovskites
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4 |
|a amplified spontaneous emissions
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4 |
|a energy cascade
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4 |
|a laser array
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| 650 |
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4 |
|a multiple quantum well
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| 700 |
1 |
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|a Liao, Qing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Yishi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Zhaoyi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Qinggang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Peng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Meili
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yao, Jiannian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fu, Hongbing
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 30(2018), 15 vom: 17. Apr., Seite e1706186
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:30
|g year:2018
|g number:15
|g day:17
|g month:04
|g pages:e1706186
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| 856 |
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|u http://dx.doi.org/10.1002/adma.201706186
|3 Volltext
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