. 2014 Jun 9;4:5209. doi: 10.1038/srep05209

Table 2. Performance parameters (on/off ratio, R_λ and EQE) of the phototransistors based on the multilayer WS₂ nanoflakes under light illumination (633 nm, 40 mW/cm²) at various gas atmospheres.

Parameters	O₂	Air	Vacuum	Ethanol	NH₃
On/off ratio	39	46	47	15	3.5
R_λ (A/W)	5.1	6.4	7.7	9.3	16.1
EQE (%)	999	1235	1500	1823	3146

Table 2. Performance parameters (on/off ratio, Rλ and EQE) of the phototransistors based on the multilayer WS2 nanoflakes under light illumination (633 nm, 40 mW/cm2) at various gas atmospheres.