Enhanced NO2 gas sensing performance of the In2O3-decorated SnO2 nanowire sensor

Hydrothermal Synthesis of SnO2 with Different Morphologies as Sensing Materials for HCHO Detection

“…The O 1s spectrum of all samples can be split into three peaks, as shown in Figure d–f, which correspond to lattice oxygen (O L ), vacancy oxygen (O V ), and surface chemically adsorbed oxygen (O C ) . The major peak of S1, S2, and S3 with binding energies of 530.90, 530.45, and 530.92 eV correspond to (O L ) from Sn–O–Sn, other peak located in the binding energy of 531.69, 531.27, and 531.71 eV belongs to the O V , and other peaks at the binding energy of 532.69, 532.24, and 532.60 eV belongs to the O C (O – , O 2– , and O 2 – ). , S2 has the highest O V content ratios (27.86%) compared with S1 and S3 of 23.60 and 20.86%, respectively. The higher vacancy oxygen and adsorbed oxygen of S2 are helpful in improving the gas-sensing performance …”

Unlocking superior NO2 sensitivity and selectivity: the role of sulfur abstraction in indium sulfide (InS) nanosheet-based sensors

“…To assess the NO 2 sensing performance, we conducted a comparative analysis of InS (Table S1, ESI†) with respect to various sensors utilizing 2D semiconductors (SnS 2 , 55 Sb 2 Se 3 , 56 N-doped In 2 S 3 , 57 black phosphorus, 58 and reduced graphene oxide 59 ), graphitic carbon nitride, 60 metal oxides (In 2 O 3 nanoparticles, 61,62 and SnO 2 nanowires 63 ), and diverse heterostructures (SnO 2 /SnSe 1.7 , 64 In 2 O 3 /SnS 2 , 65 SnO 2 /SnS 2 , 66 SnSe 2 /SnO/SnSe, 67 and In 2 O 3 nanoparticles/SnO 2 nanowires 63 ). The evaluation revealed that InS outperforms state-of-the-art materials, exhibiting a superior sensing response and lower LOD than all the aforementioned systems.…”

Solution-processed In2Se3 nanosheets for ultrasensitive and highly selective NO2 gas sensors

“…To evaluate the performance for NO 2 sensing, we compared α-In 2 Se 3 with other sensors based on 2D semiconductors (SnS 2 , 65 Sb 2 Se 3 , 66 N-doped In 2 S 3 , 67 black phosphorus, 68 reduced graphene oxide 69 ), graphitic carbon nitride, 70 metal oxides (In 2 O 3 nanoparticles, 71,72 SnO 2 nanowires 73 ), and various heterostructures (SnO 2 /SnSe 1.7 , 74 In 2 O 3 /SnS 2 , 75 SnO 2 /SnS 2 , 76 SnSe 2 /SnO/SnSe, 77 In 2 O 3 nanoparticles/SnO 2 nanowires 73 ). The comparative analysis highlights the superior suitability of α-In 2 Se 3 compared to state-of-the-art materials, with significantly higher sensing response and lower LOD than all other above-mentioned systems.…”