Academic Journal
Unusual Spectrally Reproducible and High Q-Factor Random Lasing in Polycrystalline Tin Perovskite Films
| العنوان: | Unusual Spectrally Reproducible and High Q-Factor Random Lasing in Polycrystalline Tin Perovskite Films |
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| المؤلفون: | Chirvony, Vladimir, Suárez, Isaac, Sanchez-Diaz, Jesus, S. Sánchez, Rafael, Rodríguez Romero, Jesús, Mora-Sero, Ivan, Martínez-Pastor, Juan P. |
| بيانات النشر: | Wiley |
| سنة النشر: | 2023 |
| المجموعة: | Repositori Universitat Jaume I (Repositorio UJI) |
| مصطلحات موضوعية: | random lasing, halide perovskites, Pb-free, stability, thin films |
| الوصف: | An unusual spectrally reproducible near-IR random lasing (RL) with no fluctuation of lasing peak wavelength is disclosed in polycrystalline films of formamidinium tin triiodide perovskite, which have been chemically stabilized against Sn2+ to Sn4+ oxidation. Remarkably, a quality Q-factor as high as ≈104 with an amplified spontaneous emission (ASE) threshold as low as 2 µJ cm−2 (both at 20 K) are achieved. The observed spectral reproducibility is unprecedented for semiconductor thin film RL systems and cannot be explained by the strong spatial localization of lasing modes. Instead, it is suggested that the spectral stability is a result of such an unique property of Sn-based perovskites as a large inhomogeneous broadening of the emitting centers, which is a consequence of an intrinsic structural inhomogeneity of the material. Due to this, lasing can occur simultaneously in modes that are spatially strongly overlapped, as long as the spectral separation between the modes is larger than the homogeneous linewidth of the emitting centers. The discovered mechanism of RL spectral stability in semiconductor materials, possessing inhomogeneous broadening, opens up prospects for their practical use as cheap sources of narrow laser lines. ; Funding for open access charge: CRUE-Universitat Jaume I ; This work was supported by Horizon 2020 research and innovation program through the DROP-IT project (grant agreement No. 862656) and the Ministry of Science and Innovation of Spain under projects STABLE (PID2019-107314RB-I00) and PERIPHERAL (PID2020-120484RB-I00). |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0935-9648 1521-4095 |
| Relation: | Nuevas Perovskitas de Haluro Obtenidas Mediante la Estabilización de la Fase Perovskita a Través de la Energía Superficial para Dispositivos Optoelectrónicos Avanzados; Perovskitas semiconductoras integradas en estructuras fotónicas para dispositivos inteligentes de emission y conmutación de luz; Advanced Materials, 2022; Chirvony, V. S., Suárez, I., Sanchez-Diaz, J., Sánchez, R. S., Rodríguez-Romero, J., Mora-Seró, I., Martínez-Pastor, J. P., Unusual Spectrally Reproducible and High Q-Factor Random Lasing in Polycrystalline Tin Perovskite Films. Adv. Mater. 2023, 2208293. https://doi.org/10.1002/adma.202208293; http://hdl.handle.net/10234/201473; https://doi.org/10.1002/adma.202208293 |
| DOI: | 10.1002/adma.202208293 |
| الاتاحة: | http://hdl.handle.net/10234/201473 https://doi.org/10.1002/adma.202208293 |
| Rights: | http://creativecommons.org/licenses/by-nc-nd/4.0/ ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.E79A68C5 |
| قاعدة البيانات: | BASE |
| تدمد: | 09359648 15214095 |
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| DOI: | 10.1002/adma.202208293 |