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| Autori principali: | , , , , , , , , , , , , |
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| Natura: | Preprint |
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2026
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2603.24285 |
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| _version_ | 1866908913261084672 |
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| author | Sapozhnikova, Elizaveta V. Matchenya, Ivan A. Tatarinov, Dmitry A. Verkhogliadov, Grigorii A. Semyonov, Dmitry A. Kirsanova, Maria A. Kuzmenko, Natalia K. Mironova, Julia S. Kalganova, Arina O. Levkovskaya, Valeriya M. Baryshev, Stepan A. Tian, Yuxi Pushkarev, Anatoly P. |
| author_facet | Sapozhnikova, Elizaveta V. Matchenya, Ivan A. Tatarinov, Dmitry A. Verkhogliadov, Grigorii A. Semyonov, Dmitry A. Kirsanova, Maria A. Kuzmenko, Natalia K. Mironova, Julia S. Kalganova, Arina O. Levkovskaya, Valeriya M. Baryshev, Stepan A. Tian, Yuxi Pushkarev, Anatoly P. |
| contents | Colloidal perovskite nanocrystals (NCs) are a well-proven platform for growing anisotropic structures. Nanowires (NWs) exhibiting a quantum confinement phenomenon and microwires (MWs), which enable lasing, are of particular interest for optoelectronic devices. Synthesis of the latter is challenging. Herein, we report a straightforward access to high-quality CsPbBr3 MW lasers. We utilize a diphenyl ether (DPE) solvent for the hot-injection synthesis. DPE coordinates strongly to Pb2+ and allows to reduce an excess of oleic acid/oleylamine ligand pair well established for PbBr2 dissolution and inhibition of as-formed NCs regrowth. Therefore, a rapid injection of Cs-oleate into the PbBr2-containing solution yields lead-depleted Cs4PbBr6 NCs which slowly release perovskite precursors and produce CsPbBr3 counterparts. The latter transform into NWs through an oriented-attachment mechanism, which in turn evolve into laser MWs. To demonstrate spectrally tunable lasing in MWs we employ YCl3 for ion exchange in perovskite lattice. Resultant CsPb(Cl,Br)3 MWs show high-Q coherent emission in the 485-540 nm range. To highlight the potential of synthesized MWs for integrated optoelectronics, we assemble a device comprising a CsPb(Cl,Br)3 MW laser coupled to MoO3 lossless nanowaveguide, which delivers coherent light to a CsPbBr3 MW photodetector. The device exhibits a nonlinear optoelectronic response applicable for on-chip neuromorphic computing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_24285 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Colloidal Nanocrystals Regrowth-Assisted Synthesis of Perovskite Microwire Lasers for Integrated Optoelectronics Sapozhnikova, Elizaveta V. Matchenya, Ivan A. Tatarinov, Dmitry A. Verkhogliadov, Grigorii A. Semyonov, Dmitry A. Kirsanova, Maria A. Kuzmenko, Natalia K. Mironova, Julia S. Kalganova, Arina O. Levkovskaya, Valeriya M. Baryshev, Stepan A. Tian, Yuxi Pushkarev, Anatoly P. Optics Colloidal perovskite nanocrystals (NCs) are a well-proven platform for growing anisotropic structures. Nanowires (NWs) exhibiting a quantum confinement phenomenon and microwires (MWs), which enable lasing, are of particular interest for optoelectronic devices. Synthesis of the latter is challenging. Herein, we report a straightforward access to high-quality CsPbBr3 MW lasers. We utilize a diphenyl ether (DPE) solvent for the hot-injection synthesis. DPE coordinates strongly to Pb2+ and allows to reduce an excess of oleic acid/oleylamine ligand pair well established for PbBr2 dissolution and inhibition of as-formed NCs regrowth. Therefore, a rapid injection of Cs-oleate into the PbBr2-containing solution yields lead-depleted Cs4PbBr6 NCs which slowly release perovskite precursors and produce CsPbBr3 counterparts. The latter transform into NWs through an oriented-attachment mechanism, which in turn evolve into laser MWs. To demonstrate spectrally tunable lasing in MWs we employ YCl3 for ion exchange in perovskite lattice. Resultant CsPb(Cl,Br)3 MWs show high-Q coherent emission in the 485-540 nm range. To highlight the potential of synthesized MWs for integrated optoelectronics, we assemble a device comprising a CsPb(Cl,Br)3 MW laser coupled to MoO3 lossless nanowaveguide, which delivers coherent light to a CsPbBr3 MW photodetector. The device exhibits a nonlinear optoelectronic response applicable for on-chip neuromorphic computing. |
| title | Colloidal Nanocrystals Regrowth-Assisted Synthesis of Perovskite Microwire Lasers for Integrated Optoelectronics |
| topic | Optics |
| url | https://arxiv.org/abs/2603.24285 |