A miniaturized organic photoelectrochemical transistor aptasensor based on nanorod arrays toward high-sensitive T-2 toxin detection in milk samples

•Channel current is 100 times higher than photocurrent.•This OPECT aptasensor amplifies the gate signal output 800 times through channel.•The introduction light avoids using gate voltages further reducing power consumption.•This OPECT aptasensor realizes highly sensitive detection for T-2 toxin in milk samples.