Liang B.-WHuang C.-CKao K.-JLan Y.-WCHIEH-HSIUNG KUAN2021-09-022021-09-022020https://www.scopus.com/inward/record.uri?eid=2-s2.0-85095125206&doi=10.1364%2fCLEO_AT.2020.AF3I.6&partnerID=40&md5=995b18f6478ae6d34eabcd0874a6f62dhttps://scholars.lib.ntu.edu.tw/handle/123456789/580667We have demonstrated a performance enhanced multicolor quantum grid infrared photodetector (QGIP) through graphene overlaying. The responsivity and the detectivity are improved due to the photoelectrons extra-generated at the Graphene-GaAs interface contribute to the photocurrent. CLEO 2020 ? OSA 2020 ? 2020 The Author(s).Gallium arsenide; Heterojunctions; III-V semiconductors; Infrared detectors; Photocurrents; Photodetectors; Photons; Detectivity; Infrared photodetector; Responsivity; Graphene[SDGs]SDG7conference paper10.1364/CLEO_AT.2020.AF3I.62-s2.0-85095125206