An equivalent circuit model of a novel photodetector

• Published in: Infrared physics & technology Vol. 52; no. 6; pp. 434 - 437
• Main Authors: Zhan, G.Z., Guo, F.M., Li, J.W., Zhu, Z.Q., Chu, J.H.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.11.2009; Elsevier
• Subjects: Applied sciences; Bolometer; infrared, submillimeter wave, microwave and radiowave receivers and detectors; Communication, education, history, and philosophy; CTIA; Curve fitting; Electronics; Equivalent circuit model; Exact sciences and technology; Infrared, submillimeter wave, microwave and radiowave instruments, equipment and techniques; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Optoelectronic devices; Photodetector (PD); Physics; Physics literature and publications; ROIC; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Simulation; 84.30.−r; ROIC; 95.55.Aq; Simulation; 42.79.Pw; CTIA; Photodetector (PD); 85.60.Gz; Equivalent circuit model; 07.50.Ek; Curve fitting; Infrared detectors; Radiation detectors; Photodetectors; 84.30.-r; Quantum detector; Equivalent circuits
• ISSN: 1350-4495; 1879-0275
• DOI: 10.1016/j.infrared.2009.09.006

An equivalent circuit model of a novel photodetector (PD) is proposed in this article. We use this model to describe the relation between the bias voltage and current ( I– V), also the bias voltage and capacitance( C– V) of this kind of novel PD. The circuit model could optimize the structure of the circuit and could be linked with the readout circuit. According to the comparison between the simulation result and the experimental result by circuit testing, we could find they are in good agreement, which proving the correctness of the equivalent circuit model. The signification of this equivalent circuit model is to design an optimal readout circuit (ROIC) for the novel PD.