Journal
MATERIALS
Volume 15, Issue 14, Pages -Publisher
MDPI
DOI: 10.3390/ma15144820
Keywords
graphene; photodetector; flexible electronics
Categories
Funding
- National Natural Science Foundation of China [61971049, 21776021]
- Key Scientific Research Project of Beijing Municipal Commission of Education [KZ202010015024, KZ201910015016]
- Research and Development Program of Beijing Institute of Graphic Communication [Ec202006, Ec202004]
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With the rapid development of optoelectronics and related industries, the development of flexible photodetectors (PDs) has become significant. In this review, the recent research progress on graphene-based flexible PDs is outlined, including the investigation of graphene conductive films and the analysis of optical and mechanical performance of PDs based on single-component graphene and mixed-structure graphene.
In recent years, optoelectronics and related industries have developed rapidly. As typical optoelectronics devices, photodetectors (PDs) are widely applied in various fields. The functional materials in traditional PDs exhibit high hardness, and the performance of these rigid detectors is thus greatly reduced upon their stretching or bending. Therefore, the development of new flexible PDs with bendable and foldable functions is of great significance and has much interest in wearable, implantable optoelectronic devices. Graphene with excellent electrical and optical performance constructed on various flexible and rigid substrates has great potential in PDs. In this review, recent research progress on graphene-based flexible PDs is outlined. The research states of graphene conductive films are summarized, focusing on PDs based on single-component graphene and mixed-structure graphene, with a systematic analysis of their optical and mechanical performance, and the techniques for optimizing the PDs are also discussed. Finally, a summary of the current applications of graphene flexible PDs and perspectives is provided, and the remaining challenges are discussed.
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