Terahertz frequency band photoelectric detector

The invention provides a terahertz frequency band photoelectric detector. The photoelectric detector comprises a circuit substrate, at least two uni-traveling carrier photodiodes and a radio frequency microstrip circuit, each uni-traveling carrier photodiode comprises an N electrode contact layer and a P electrode contact layer; the first end of each one-way carrier photodiode is connected with the first side of the circuit substrate based on the metal organic chemical vapor deposition technology, and the N electrode contact layer of each one-way carrier photodiode is located on the upper surface of the circuit substrate; the first side is any side in the circuit substrate; the P electrode contact layer of each uni-traveling carrier photodiode is connected with the first end of the radio frequency microstrip circuit, and the second end of the radio frequency microstrip circuit is connected with an external power supply. The output power of the photoelectric detector can be improved, the circuit structure is s