programmable ferroelectric-doping patterns for symmetry engineering
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Polarization photodetectors with configurable polarity transition enabled by programmable ferroelectric-doping patterns
Shuaiqin Wu, Jie Deng, Xudong Wang, Jing Zhou, Hanxue Jiao, Qianru Zhao, Tie Lin, Hong Shen, Xiangjian Meng, Yan Chen, Junhao Chu, Jianlu Wang
Research context
Advances in symmetry-breaking engineering of heterointerfaces for optoelectronic devices have garnered significant attention due to their immense potential in tunable moiré quantum geometry and enabling polarization light detection. Despite several proposed approaches to breaking the symmetry of low-dimensional materials, there remains a lack of universal methods to create materials with prominent polarization detection capabilities. Here, we introduce a reliable strategy for manipulating the symmetry of low-dimensional materials through a programmable ferroelectric-doping patterns technique. This method introduces a spontaneous photocurrent and enables the detection of linearly polarization light in isotropic 2H-MoTe2. The 2H-MoTe2 photodetector exhibits a significant short-circuit photocurrent intensity (Jsc = 29.9 A/cm2) and open-circuit voltage Voc of 0.12 V ( ~ 3 × 105 V/cm). Under a specific bias, the polarization ratio transitions from 1 to ∞/−∞, shifting from a positive state (unipolar regime) to a negative state (bipolar regime). These findings underscore the potential of ferroelectric-doping patterns as a promising approach to creating composite materials with artificial
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short-circuit photocurrent density 29.9 A/cm2 and open-circuit voltage 0.12 V
Source PDF · page 1linear-polarization detection in isotropic 2H-MoTe2
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Shuaiqin Wu, Jie Deng, Xudong Wang, Jing Zhou, Hanxue Jiao, Qianru Zhao, Tie Lin, Hong Shen, Xiangjian Meng, Yan Chen, Junhao Chu, Jianlu Wang. Polarization photodetectors with configurable polarity transition enabled by programmable ferroelectric-doping patterns. Nature Communications (2024). https://doi.org/10.1038/s41467-024-52877-3
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