Density of bulk trap states of hybrid lead halide perovskite single crystals: temperature modulated space-charge-limited-currents
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Temperature-modulated space-charge-limited-current spectroscopy (TMSCLC) is applied to quantitatively evaluate the density of trap states in the band-gap with high energy resolution of semiconducting hybrid lead halide perovskite single crystals. Interestingly multicomponent deep trap states were observed in the pure perovskite crystals, which assumingly caused by the formation of nanodomains due to the presence of the mobile species in the perovskites.
Keywordsperovskite, single crystal, space charge limited currents, charge trap, temperature modulation.
Document typePeer reviewed
Document versionFinal PDF
SourceScientific Reports. 2019, vol. 9, issue 1, p. 1-8.