TY - JOUR
T1 - Electrically Switchable Color-Selective Organic Photodetectors for Full-Color Imaging
AU - Lan, Zhaojue
AU - Zhu, Furong
N1 - Funding Information:
This work was financially supported by the Research Grants Council, University Grants Committee, Hong Kong, General Research Fund (12302817, 12303920), Collaborative Research Fund (C5037-18GF), NSFC/RGC Joint Research Scheme (N_HKBU201/19), Hong Kong Baptist University State Key Laboratory of Environmental and Biological Analysis (SKLP_1920_P04), and Shenzhen Science and Technology Innovation Commission (SZSTI), China.
Publisher Copyright:
© 2021 American Chemical Society.
PY - 2021/8/24
Y1 - 2021/8/24
N2 - The present full-color imaging techniques rely on the use of broadband inorganic photodetectors with dedicated color filters, which is one of the practical challenges for large-area, flexible, and high-solution imaging applications. The development of high-performance color-selective photodetectors is one of the key solutions to overcome this challenge. In this work, an electrically switchable color-selective organic photodetector (OPD) comprising a double organic bulk heterojunction structure has been developed for full-color imaging. The color-selective sensing capability over the visible spectrum ranges can be realized by controlling the bias across the OPD, achieving a high responsivity of ∼200 mA/W, a large linear dynamic range of 122 dB, a viewing angle of 120°, and a -3 dB cutoff frequency of >50 kHz. A full-color imaging function has been demonstrated using electrically switchable red-, green-, and blue-color selective OPD sensors with an excellent operational stability. The results of this work provide a practical solution for applications in high-resolution full-color imaging and artificial vision.
AB - The present full-color imaging techniques rely on the use of broadband inorganic photodetectors with dedicated color filters, which is one of the practical challenges for large-area, flexible, and high-solution imaging applications. The development of high-performance color-selective photodetectors is one of the key solutions to overcome this challenge. In this work, an electrically switchable color-selective organic photodetector (OPD) comprising a double organic bulk heterojunction structure has been developed for full-color imaging. The color-selective sensing capability over the visible spectrum ranges can be realized by controlling the bias across the OPD, achieving a high responsivity of ∼200 mA/W, a large linear dynamic range of 122 dB, a viewing angle of 120°, and a -3 dB cutoff frequency of >50 kHz. A full-color imaging function has been demonstrated using electrically switchable red-, green-, and blue-color selective OPD sensors with an excellent operational stability. The results of this work provide a practical solution for applications in high-resolution full-color imaging and artificial vision.
KW - color-selective
KW - electrically switchable
KW - full-color imaging
KW - image sensor
KW - organic photodetector
UR - http://www.scopus.com/inward/record.url?scp=85112550095&partnerID=8YFLogxK
U2 - 10.1021/acsnano.1c04908
DO - 10.1021/acsnano.1c04908
M3 - Journal article
SN - 1936-0851
VL - 15
SP - 13674
EP - 13682
JO - ACS Nano
JF - ACS Nano
IS - 8
ER -