Abstract
Van der Waals heterostructures (vdWHs), obtained by artificially stacking 2D layered material (2DLM) plains upon each other, are brand new structures that have exhibited novel electronic and optoelectronic properties and attracted a great deal of attention. So far, the results are only based on devices with symmetrical configurations: devices predominated by vdWH parts, or cross‐like configurations combined with both vdWHs and extra individual 2DLM layers. Quite different gate tunable phenomena have been observed for these two configurations even though 2DLMs with similar band alignments were used, which may be due to the different device configurations utilized. For a deeper understanding, rational investigation on configuration‐dependent properties of vdWHs is needed. Here, using MoTe2/MoS2 as an example, vdWH device is artificially designed with two asymmetrical configurations. Through comparing the respective results, it is found that the properties that stem only from the vdWH, i.e., the rectification behavior and open voltage in photovoltaic effect, are independent of the device structures. However, other properties, i.e., drain currents, short circuit currents, and photoreponse performances, strongly depend on the configuration used. These results give a guideline on studying the intrinsic properties of vdWHs and optimizing the device structures for better performances.
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Dates
Type | When |
---|---|
Created | 9 years, 2 months ago (May 30, 2016, 9:39 a.m.) |
Deposited | 1 year, 10 months ago (Oct. 6, 2023, 8:53 p.m.) |
Indexed | 3 weeks, 2 days ago (Aug. 2, 2025, midnight) |
Issued | 9 years, 2 months ago (May 30, 2016) |
Published | 9 years, 2 months ago (May 30, 2016) |
Published Online | 9 years, 2 months ago (May 30, 2016) |
Published Print | 9 years ago (Aug. 1, 2016) |
@article{Wang_2016, title={Configuration‐Dependent Electrically Tunable Van der Waals Heterostructures Based on MoTe2/MoS2}, volume={26}, ISSN={1616-3028}, url={http://dx.doi.org/10.1002/adfm.201601349}, DOI={10.1002/adfm.201601349}, number={30}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Wang, Feng and Yin, Lei and Wang, Zhen Xing and Xu, Kai and Wang, Feng Mei and Shifa, Tofik Ahmed and Huang, Yun and Jiang, Chao and He, Jun}, year={2016}, month=may, pages={5499–5506} }