Thin film transistors based on poly(3-hexylthiophene)/[6,6]-phenyl C61 butyric acid methyl ester hetero-junction for ammonia detection

- The film doped PC61BM exhibited an increasing Ion/Ioff and higher mobility values (μ) than pure P3HT film.
- The recovery value of PC61BM/P3HT composite film reached 93.9% of its initial value at 20 ppm NH3 within 9 min.
- PC61BM/P3HT composite film exhibited a highly selectivity to NH3.