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Photophysical prope...
Photophysical properties of halide perovskite CsPb(Br1-xIx)3 thin films and nanowires
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- Markina, D. I. (författare)
- Saint Petersburg National Research University of Information Technologies, Mechanics and Optics University (ITMO), Russian Federation
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- Tiguntseva, Ekaterina Y. (författare)
- Saint Petersburg National Research University of Information Technologies, Mechanics and Optics University (ITMO), Russian Federation
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- Pushkarev, Anatoly P. (författare)
- Saint Petersburg National Research University of Information Technologies, Mechanics and Optics University (ITMO), Russian Federation
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visa fler...
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- Samsonov, M. A. (författare)
- University of Pardubice
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- Vengris, M. (författare)
- Vilniaus universitetas,Vilnius University
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- Munkhbat, Battulga, 1988 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Shegai, Timur, 1982 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Hix, G. B. (författare)
- University of Wolverhampton
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- Zakhidov, Anvar A. (författare)
- Saint Petersburg National Research University of Information Technologies, Mechanics and Optics University (ITMO), Russian Federation,University of Texas at Dallas
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- Makarov, S. (författare)
- Saint Petersburg National Research University of Information Technologies, Mechanics and Optics University (ITMO), Russian Federation
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(creator_code:org_t)
- Elsevier BV, 2020
- 2020
- Engelska.
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Ingår i: Journal of Luminescence. - : Elsevier BV. - 0022-2313. ; 220
- Relaterad länk:
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https://wlv.openrepo...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- Thin films and nanowires based on lead halide perovskites are promising objects for the design of various optoelectronic devices as well as nano- and microlasers. One of the main advantages of such materials is their absorption and photoluminescence spectra tuning across the visible range via the change in their chemical composition, for instance, by substitution of one halide atom (Br) for another one (I) in the crystal lattice of CsPb(Br1-xIx)3. However, this approach gives materials showing unstable photoluminescence behavior caused by light-induced perovskite phase separation under high-intensity excitation at room temperature. In this work, CsPb(Br1-xIx)3 thin films and nanowires are obtained by chemical vapor anion exchange method from their CsPbBr3 counterparts fabricated by improved wet chemical methods. Spontaneous and stimulated emission from the mixed-halide and pristine bromide samples are studied. Tribromide nanowires exhibit lasing with relatively low thresholds (10–100 μJ/cm2) and high Q-factor of the laser mode up to 3500. The temperature dependence of the photoinitiated phase separation in CsPbBr1.5I1.5 samples is investigated, showing that light-induced phase instability of the mixed-halide nanowires can be suppressed at the somewhat higher temperature (250 K) than the value observed for the thin films having a similar chemical composition. The results obtained are important for the optimization of the functioning of optoelectronic devices based on considered perovskite materials.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Cesium lead halide perovskite
- Segregation
- Thin film
- Mixed-halide perovskite
- Nanowire
- Lasing
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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- Av författaren/redakt...
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Markina, D. I.
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Tiguntseva, Ekat ...
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Pushkarev, Anato ...
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Samsonov, M. A.
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Vengris, M.
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Munkhbat, Battul ...
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visa fler...
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Shegai, Timur, 1 ...
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Hix, G. B.
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Zakhidov, Anvar ...
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Makarov, S.
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visa färre...
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- NATURVETENSKAP
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och Atom och molekyl ...
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Annan materialte ...
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NATURVETENSKAP
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Journal of Lumin ...
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Chalmers tekniska högskola