Carbon nanotube based multi-spectrum infrared detector array

Carbon nanotube (CNT), a one dimensional (1D) hollow cylinder, possesses exceptional optoelectronic properties due to its unique geometry, making it a promising material for infrared (IR) detection. By taking advantage of its particular features, IR detectors using CNT have the potential to outperform and replace conventional detectors. In this paper, a multi-spectrum IR detector system will be introduced, which uses CNT as the functional element to effectively detect IR with wavelengths ranging from 0.8 um to 5 um at room temperature. The detector array was packaged using an IR transparent polymer, called parylene-C, to prevent the influence of atmospheric moisture and gases. A high-speed readout integrated circuit system was developed to measure the photo-response of the detectors.