Photodetecting based on two-dimensional(2-D)material is an important trend for new generation of photodetection technology.Free of lattice matching,2-D materials can be easily combined via van der Waals(VDW)force to materials of other dimensions,such as zero-dimensional(0-D)quantum dots,one-dimensional(1-D)nanowires and three-dimensional(3-D)semiconductors,to form hetero-dimension(HD)photodetectors.So far,significant progresses have been made for 2-D material based HD photodetectors to exhibit obviously higher performance than 2-D material photodetectors.The merits of VDW HD junctions in photodetection are introduced in this paper,and the photodetector research achievements of the HD styles including 2D-0D,2D-1D,2D-3D,and multi-layer multi-dimension are reviewed.Some insight into the possible challenges and future prospects of 2-D materials based HD-structure photodetectors is attempted.
关键词
探测器/2维材料/范德华异质结/异维结构
Key words
detectors/2-D materials/van der Waals heterostructures/hetero-dimension structure
维普
万方数据