Detail publikačního výsledku

Advanced space-charge-limited current model for analyzing fermi level shift in the bandgap of halide perovskites

GAVRANOVIĆ, S.; ZMEŠKAL, O.; WEITER, M.; POSPÍŠIL, J.

Originální název

Advanced space-charge-limited current model for analyzing fermi level shift in the bandgap of halide perovskites

Anglický název

Advanced space-charge-limited current model for analyzing fermi level shift in the bandgap of halide perovskites

Druh

Článek WoS

Originální abstrakt

Understanding how charge carriers behave in semiconductors is key to improving next-generation optoelectronic devices. Here we introduce an advanced space-charge-limited current model that enables detailed extraction of mobility, charge carrier concentrations, and Fermi level position from voltage- and energy-dependent analysis. Applying this model to two promising halide perovskites, methylammonium lead bromide and methylammonium lead iodide, we observe a strong photoresponse, with significant increases in microscopic mobility and free carrier density under illumination. Interestingly, the behavior of trapped charges and Fermi level shifts differs between the two materials, revealing distinct transport mechanisms. This model offers a powerful tool for characterizing semiconductors and could accelerate the development of more efficient light-sensitive devices.

Anglický abstrakt

Understanding how charge carriers behave in semiconductors is key to improving next-generation optoelectronic devices. Here we introduce an advanced space-charge-limited current model that enables detailed extraction of mobility, charge carrier concentrations, and Fermi level position from voltage- and energy-dependent analysis. Applying this model to two promising halide perovskites, methylammonium lead bromide and methylammonium lead iodide, we observe a strong photoresponse, with significant increases in microscopic mobility and free carrier density under illumination. Interestingly, the behavior of trapped charges and Fermi level shifts differs between the two materials, revealing distinct transport mechanisms. This model offers a powerful tool for characterizing semiconductors and could accelerate the development of more efficient light-sensitive devices.

Klíčová slova

bulk trap spectroscopy; carrier mobility;performance;lengths;solids;TMSCLC

Klíčová slova v angličtině

bulk trap spectroscopy; carrier mobility;performance;lengths;solids;TMSCLC

Autoři

GAVRANOVIĆ, S.; ZMEŠKAL, O.; WEITER, M.; POSPÍŠIL, J.

Vydáno

04.07.2025

Nakladatel

NATURE PORTFOLIO

Místo

BERLIN

ISSN

2399-3650

Periodikum

Communications Physics

Svazek

8

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

10

Strany počet

10

URL

https://www.nature.com/articles/s42005-025-02202-1

Plný text v Digitální knihovně

http://hdl.handle.net/11012/255423

BibTex

@article{BUT198537,
  author="Stevan {Gavranović} and Oldřich {Zmeškal} and Martin {Weiter} and Jan {Pospíšil}",
  title="Advanced space-charge-limited current model for analyzing fermi level shift in the bandgap of halide perovskites",
  journal="Communications Physics",
  year="2025",
  volume="8",
  number="1",
  pages="1--10",
  doi="10.1038/s42005-025-02202-1",
  url="https://www.nature.com/articles/s42005-025-02202-1"
}

Dokumenty

Gavranovic_et_al-2025-Communications_Physics