“…16,20,23,25,26 As a member of the wide class 2D materials, tin disulde (SnS 2 ) displays many intriguing properties in electronics, 27 photonics and optoelectronics, [27][28][29][30] as well as gas monitoring. 24,[31][32][33][34][35][36][37][38][39][40][41][42] It was reported recently by Kalantar-zadeh et al that a SnS 2 -based NO 2 gas sensor with a sensitivity of 0.5 ppm could be improved to 30 ppb when heated to 120 C. 24 However, an elevated operating temperature typically increases power consumption and thus a more intricate setup is required. 3,10,16,20,24,25,43 Furthermore, the high operating temperature might pose the risk of ignition when detecting in ammable or explosive atmospheres which would limit sensor's application.…”