Spatiotemporal programming via asymmetric dielectric engineering for nonvolatile 2D optoelectronics
Abstract
Ambipolar two dimensional (2D) semiconductors integrated with floating-gate architectures offer a promising platform for nonvolatile, reconfigurable electronics. However, the switching between p-n and n-p junction polarities has conventionally required complex multi-gate designs, hindering the scalability and integration density. Here, we demonstrate a spatiotemporal programming strategy using a dual-floating-gate architecture with a symmetry broken tunneling dielectric. An asymmetric dielectric stack creates distinct tunneling thresholds for two floating gates, enabling a single input gate to encode spatial doping profiles in the 2D channel via defined voltage pulse sequences. We achieve on demand, nonvolatile, and reversible switching between p-n and n-p configurations with excellent retention and endurance. The reconfigurable homojunction serves as a multifunctional platform for logic encoding, rectification, photodetection, and in sensor computing. This work establishes a design paradigm that replaces spatial input complexity with spatiotemporal programming, paving the way for high-density, multifunctional intelligent hardware.
Versions
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BibTeX
@misc{luo2026spatiotemporal,
title = {{Spatiotemporal programming via asymmetric dielectric engineering for nonvolatile 2D optoelectronics}},
author = {Xiaoguang Luo and Xiaolong Zhang and Honglei Chen and Jiaming Wang and Fan Liu and Jiongtao Zhang and Junqiang Zhang and Yihan Yin and Jinpeng Xu and Lei Ying and Renjing Xu and Yingchun Cheng and Xuetao Gan and Wei Huang},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.15771},
eprint = {2609.15771},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.15771},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Spatiotemporal programming via asymmetric dielectric engineering for nonvolatile 2D optoelectronics
AU - Xiaoguang Luo
AU - Xiaolong Zhang
AU - Honglei Chen
AU - Jiaming Wang
AU - Fan Liu
AU - Jiongtao Zhang
AU - Junqiang Zhang
AU - Yihan Yin
AU - Jinpeng Xu
AU - Lei Ying
AU - Renjing Xu
AU - Yingchun Cheng
AU - Xuetao Gan
AU - Wei Huang
PY - 2026
DA - 2026/09/14
PB - arXiv
DO - 10.48550/arxiv.2609.15771
UR - https://arxiv.org/abs/2609.15771
AB - Ambipolar two dimensional (2D) semiconductors integrated with floating-gate architectures offer a promising platform for nonvolatile, reconfigurable electronics. However, the switching between p-n and n-p junction polarities has conventionally required complex multi-gate designs, hindering the scalability and integration density. Here, we demonstrate a spatiotemporal programming strategy using a dual-floating-gate architecture with a symmetry broken tunneling dielectric. An asymmetric dielectric stack creates distinct tunneling thresholds for two floating gates, enabling a single input gate to encode spatial doping profiles in the 2D channel via defined voltage pulse sequences. We achieve on demand, nonvolatile, and reversible switching between p-n and n-p configurations with excellent retention and endurance. The reconfigurable homojunction serves as a multifunctional platform for logic encoding, rectification, photodetection, and in sensor computing. This work establishes a design paradigm that replaces spatial input complexity with spatiotemporal programming, paving the way for high-density, multifunctional intelligent hardware.
ER -