Table 1. Raman, Electrical, and Photoresponse Properties of Polypyrrole Dedoped with Various Concentrations of Ammonia Solution

Sample	Ammonia concentration [M]	Raman intensity ratio I1360/I1560	Sheet Resistance [Ω/sq]	Photocurrent [A]	Photovoltage [V]
Ppy-D0	0	0.976	2.97 (±2.56) × 102	1.82 (±0.31) × 10-7	2.98 (±0.55) × 10-5
Ppy-D0.02	0.02	0.961	1.18 (±0.07) × 103	6.27 (±0.75) × 10-8	4.66 (±0.68) × 10-5
Ppy-D0.05	0.05	0.938	2.76 (±0.22) × 104	2.25 (±0.40) × 10-8	2.79 (±0.26) × 10-4
Ppy-D0.09	0.09	0.910	7.90 (±0.55) × 105	2.88 (±0.42) × 10-9	4.87 (±0.21) × 10-4
Ppy-D7.2	7.2	0.867	1.70 (±0.53) × 106	5.49 (±0.79) × 10-10	5.91 (±0.19) × 10-4