Effect of Electrode Shape on the Performance of ZnO-Based Ethanol Sensor

Table 1

Sensing results of different electrode patterns.

Sample	Ethanol gas concentration (ppm)	Temperature (°C)	Sensitivity (%)	Response time (s)	Recovery time (s)
A	2,000	200	43	10	7.5
B	2,000	200	32	4	7.28
C	2,000	200	32	6	7.5
A	2,000	250	68	28.8	21
A	660	250	53	25	32
A	330	250	42	21	57