Narrowband Near-Infrared Perovskite/Polymer Hybrid Photodetectors
Source abstract
Abstract
The distinct visible-blind narrowband near-infrared (NIR) photodetection behaviors in the perovskite/polymer hybrid photodetectors (PDs) have been investigated. The narrowband NIR response in the hybrid PDs is realized through the buildup of the space charges at the perovskite/polymer interface. The semiconducting perovskite layer acts as an internal NIR bandpass due to its high absorption to the visible light and high transparency to the NIR light. It also acts as an excellent hole-transporting layer, facilitating the efficient extraction of the holes generated in the low band gap NIR light-absorbing polymer blend layer. The hybrid PDs thus demonstrated have a -3 dB cutoff frequency of 300 kHz, providing an exciting option for a plethora of applications in bioimaging, environmental detection, and security monitoring.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Electronics and Photovoltaics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, Research Centre of Excellence for Organic Electronics, and Institute of Advanced Materials, Hong Kong Baptist University, Hong Kong, China
Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Funding
Research Grants Council, University Grants Committee · National Natural Science Foundation of China
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