Table 2 The first-order temperature coefficient (χ) for different Raman modes of some 2D thermoelectric materials along with the present work
From: Study of Thermometry in Two-Dimensional Sb2Te3 from Temperature-Dependent Raman Spectroscopy
Material | Temperature coefficient (cm−1/K) | Ref | ||
|---|---|---|---|---|
TMDCs | χ- E12g | χ- A1g | ||
MoS2 (single layer) | − 0.013 | − 0.016 | [35] | |
MoS2 (few layer) | − 0.016 | − 0.011 | [36] | |
WSe2 (single layer) | − 0.0048 | − 0.0032 | [37] | |
Trichalcogenides | χ-A1g | χ-A2g | ||
TiS3 nanoribbons | − 0.018 | − 0.021 | [38] | |
TiS3 nanosheets | − 0.02 | − 0.024 | [38] | |
TIs | χ-A11g | χ-E2g | χ-A21g | |
Bi2Se3 nanoplates | − 0.01258 | − 0.01385 | − 0.02363 | [15] |
Bi2Te3 nanowires | − 0.0128 | [39] | ||
Sb2Te3 (400 nm) | − 0.016 | − 0.018 | This work | |
Sb2Te3 (115 nm) | − 0.014 | − 0.015 | This work | |
Sb2Te3 (80 nm) | − 0.016 | − 0.01 | This work | |