Preparation and characterization of SbSeI thin films

Dolcet Sadurni, Marc; Timmo, Kristi; Mikli, Valdek; Volobujeva, Olga; Mengü, Idil; Krustok, Jüri; Grossberg-Kuusk, Maarja; Kauk-Kuusik, Marit

doi:10.1016/j.jsamd.2023.100664

Journal of Science: Advanced Materials and Devices

2024

DOI: 10.1016/j.jsamd.2023.100664

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Preparation and characterization of SbSeI thin films

Marc Dolcet Sadurni,

Kristi Timmo,

Valdek Mikli

et al.

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2024

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Radiative recombination model for BiSeI microcrystals: unveiling deep defects through photoluminescence

Dolcet Sadurni,

Krustok,

Timmo

et al. 2024

J. Phys. Energy

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Pnictogen chalcohalides are semiconductors that have emerged as promising materials for energy conversion due to their exceptional optoelectronic properties. Their electronic configuration (ns2), particularly for Bi- and Sb-based compounds, can be a key factor in efficient carrier transport and defect tolerance, similarly, to Pb- perovskites. In the present study, the Bi-containing chalcohalide, BiSeI was synthesized via isothermal heat treatment of binary precursors in evacuated quartz ampoules. The synthesized BiSeI microcrystals exhibited a characteristic needle-like morphology and a near-stoichiometric composition. Both indirect and direct band gap energies of BiSeI were determined by UV-Vis-NIR diffuse reflectance spectroscopy, with room temperature values of 1.17 eV and 1.29 eV, respectively. This study presents the first experimental investigation of the photoluminescence properties of BiSeI microcrystals resulting in a recombination model involving multiple defect states. This work provides valuable insights into the defect structure and recombination mechanisms within BiSeI, paving the way for further exploration of its potential in optoelectronic devices.

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Radiative recombination model for BiSeI microcrystals: unveiling deep defects through photoluminescence

Dolcet Sadurni,

Krustok,

Timmo

et al. 2024

J. Phys. Energy

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show abstract

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Preparation and characterization of SbSeI thin films

Cited by 1 publication

References 42 publications

Radiative recombination model for BiSeI microcrystals: unveiling deep defects through photoluminescence

Radiative recombination model for BiSeI microcrystals: unveiling deep defects through photoluminescence

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