Flexible thin-film photodetectors based on solution-processed molybdenum disulphide nanosheets
Source abstract
Abstract
Implementing two dimensional materials as an active layer in flexible photodetectors has gained interest due to their high mechanical flexibility and excellent optoelectronic properties. Here, we demonstrate a high-performance flexible photodetector based on liquid-phase exfoliated MoS2nanosheets (NSs), exhibiting fast and stable performance under ambient conditions. The obtained NSs have a lateral size of hundreds of nanometres, an average thickness of ~ 3 nm and high crystallinity in the semiconducting 2H phase. The devices show stable current–time (I–t) characteristics under pulsed illumination with the transient rise and decay time constant around 135 µs. The devices exhibit excellent omnidirectional light detection capabilities for wide incident angles ranging from 0° to 70°. It also shows a non-linear dependence on incident intensity with a power-law exponent of 0.75, indicating defect-assisted trapping of photo-generated charge carriers. Efficient photoresponse is observed in MoS2NSs-based flexible photodetectors with different radii and repeated bending.Graphical abstract
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: 2D Materials and Applications · Advanced Sensor and Energy Harvesting Materials · ZnO doping and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
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