Role of various interfaces of CuO/ZnO random nanowire networks in H2S sensing: An impedance and Kelvin probe analysis

• Published in: Sensors and actuators. B, Chemical Vol. 202; pp. 1270 - 1280
• Main Authors: Datta, Niyanta, Ramgir, Niranjan S., Kumar, Suresh, Veerender, P., Kaur, M., Kailasaganapathi, S., Debnath, A.K., Aswal, D.K., Gupta, S.K.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2014
• Subjects: Band bending; Impedance measurements; Nanowires; Work function; ZnO; Work function; ZnO; Band bending; Nanowires; Impedance measurements

CuO-modified ZnO random nanowire networks have been demonstrated to enhance the sensitivity and selectivity towards H2S. CuO being p-type and ZnO being n-type semiconductors, modification with CuO results in the formation of random nano p–n junction distributed over the nanowire surface, thereby lea...