Details

Autor(en) / Beteiligte

• Mane, Sagar M.
• Nimbalkar, Amol R.
• Go, Ji Seong
• Patil, Nilam B.
• Dhasade, Shankar S.
• Thombare, Jagannath V.
• Burungale, Arvind S.
• Shin, Jae Cheol

Titel

NO2 sensing properties of 3D flower-like ZnO nanostructure decorated with thin porous petals synthesized using a simple sol–gel drop-casting method

Ist Teil von

• Applied physics. A, Materials science & processing, 2021, Vol.127 (1), Article 13

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A three-dimensional flower-like ZnO nanostructured film decorated with the thin porous ‘petals’ is synthesized using an inexpensive sol–gel drop-casting method, and the NO 2 detection characteristics of the nanostructured film are studied. The gas-sensing study shows higher sensitivity with selectivity toward NO 2 gas, exhibiting good reproducibility and stability. The as-synthesized nanostructured 3D flower-like ZnO film shows excellent NO 2 sensing performance, with a maximum gas response of 23.3 for 100 ppm NO 2 gas at an operating temperature of 180 °C. A detailed gas-sensing study reveals that the enormous porous petals with various inter-connected pores fused on the flower-like ZnO nanostructure improve the adsorption of gas molecules; consequently, the synthesized ZnO nanostructure exhibits a superior level of NO 2 gas-sensing activity. This study provides a promising path towards the development of a highly sensitive NO 2 gas sensor and an easy way to fabricate the 3D morphology decorated with exceedingly porous ‘petals’.