Humidity Sensor Based on Orange Dye and Graphene Solid Electrolyte Cells
| Autor: | Abdullah M. Asiri, Nabila Nawaz, Rashid Ali, Akhmedov Khakim M, Imran Murtaza, Khasan S. Karimov, Hong Meng, Umair Asghar, Muhammad Tariq Saeed Chani, S. Zameer Abbass |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Graphene chemistry.chemical_element Humidity 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Copper 0104 chemical sciences law.invention chemistry Chemical engineering law Fast ion conductor Relative humidity Thin film 0210 nano-technology |
| Zdroj: | Russian Journal of Electrochemistry. 55:1391-1396 |
| ISSN: | 1608-3342 1023-1935 |
| DOI: | 10.1134/s1023193519120036 |
| Popis: | The fabrication and characterization of thin film humidity sensors based on orange dye (OD) and OD–graphene solid electrolytes cells were done in this paper. The 200 nm thick silver (Ag) and copper (Cu) electrodes were deposited on glass substrate by thermal evaporation. There was gap of 20 µm between the electrodes, where the 8 to 12 µm thick film of solid electrolyte was deposited. The pure OD and the OD–graphene composites with 40 and 60% (by weight) graphene were used as solid electrolytes. The dependences of the open-circuit voltage of the cells on humidity were measured in the humidity interval from 34 to 90% relative humidity (RH). It was found that with increase in humidity the open-circuit voltage of the cells increased. In the OD–graphene composite cells on increasing the concentration of graphene the open-circuit voltage increased accordingly. |
| Databáze: | OpenAIRE |
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