**Author details**

*Light-Emitting Diodes and Photodetectors - Advances and Future Directions*

with almost no degradation, which is depicted in **Figure 6f**.

V−1S−1. **Figure 6d** shows the array of devices with the finger-type electrode

structure. The flexible photodetector shows good photoresponse with responsivity of 0.4, 0.25 and 0.1AW−1 at 408, 515 and 640 nm, respectively (**Figure 6e**). Moreover, the great mechanic stability is exhibited. Under large bending with different radius over 1000 cycles, the device can still generate stable photocurrent

In this chapter, we focus on 2D NTMDs and their applications in the field of photodetectors. 2D NTMDs exhibit extraordinary structural, electronic and optical properties. Unlike conventional TMD materials, the emerging NTMDs with abundant d-electrons and strong interlayer electronic hybridization have broadband optical absorption and ultra-high mobility, which are promising in optoelectronics. Then we have discussed efficient and controllable synthesis methods for 2D NTMDs with high crystal quality and large scalability. Various NTMDs based photodetectors have been developed till now. We have witnessed their outstanding performance, including wide-spectral range, ultrafast response, self-power and anisotropy. With the development of the materials technology and device manufacturing technology,

NTMDs will have great potential in practical optoelectronic applications.

This work is supported by the Starting Research Funds from Songshan Lake Materials Laboratory, China (No. Y0D1051F211). Dr. Jian yuan acknowledges the support from Natural Science Research Project for Anhui Universities (grant no. KJ2019A0596), and Youth Project of Provincial Natural Science Foundation of

0.7 cm2

**6. Conclusions**

**Acknowledgements**

**Conflict of interest**

Anhui (grant no. 2008085QF319).

The authors declare no conflict of interest.

**142**

Haoran Mu1,2, Jian Yuan3 and Shenghuang Lin1 \*

1 Songshan Lake Materials Laboratory, Dongguan, China

2 Department of Materials Science and Engineering and ARC Centre of Excellence in Future Low-Energy Electronics Technologies (FLEET), Monash University, Clayton, Victoria, Australia

3 School of Physics and Electronic Information, Huaibei Normal University Huaibei, Anhui, P.R. China

\*Address all correspondence to: linshenghuang@sslab.org.cn

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
