期刊
OPTO-ELECTRONIC ADVANCES
卷 5, 期 5, 页码 -出版社
CAS, INST OPTICS & ELECTRONICS, ED OFF OPTO-ELECTRONIC JOURNALS
DOI: 10.29026/oea.2022.210094
关键词
optoelectronic device; single-molecule junction; light-matter interaction; switch; electroluminescence; plasmon
类别
资金
- National Key R&D Program of China [2017YFA0204901, 2021YFA1200101, 2021YFA1200102]
- National Natural Science Foundation of China [22150013, 21727806, 21933001, 22173050]
- Tencent Foundation
- Frontiers Science Center for New Organic Matter at Nankai University [63181206]
Single-molecule devices offer an alternative strategy for overcoming the miniaturization and functionalization bottlenecks of traditional semiconductor devices, as well as serving as a reliable platform to explore intrinsic properties of matter at the single-molecule level. This review introduces optoelectronic effects in single-molecule devices, including photoisomerization switching, photoconductance, plasmon-induced excitation, photovoltaic effect, and electroluminescence, with emphasis on photoisomerization, photoexcitation, and photo-assisted tunneling processes. Discussions focus on opportunities and challenges in single-molecule optoelectronics field and propose possible breakthroughs.
Single-molecule devices not only promise to provide an alternative strategy to break through the miniaturization and functionalization bottlenecks faced by traditional semiconductor devices, but also provide a reliable platform for exploration of the intrinsic properties of matters at the single-molecule level. Because the regulation of the electrical properties of single-molecule devices will be a key factor in enabling further advances in the development of molecular electronics, it is necessary to clarify the interactions between the charge transport occurring in the device and the external fields, particularly the optical field. This review mainly introduces the optoelectronic effects that are involved in single-molecule devices, including photoisomerization switching, photoconductance, plasmon-induced excitation, photovoltaic effect, and electroluminescence. We also summarize the optoelectronic mechanisms of single-molecule devices, with particular emphasis on the photoisomerization, photoexcitation, and photo-assisted tunneling processes. Finally, we focus the discussion on the opportunities and challenges arising in the single-molecule optoelectronics field and propose further possible breakthroughs.
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