DataVXAdvanced Optical MaterialsPaper
journal article·2019-12

Anomalous Broadband Spectrum Photodetection in 2D Rhenium Disulfide Transistor

Du Xiang, Tao Liu, Junyong Wang, Peng Wang, Lin Wang, Yue Zheng, Yanan Wang, Jing Gao, Kah‐Wee Ang, Goki Eda, Weida Hu, Lei Liu, Wei Chen

Advanced Optical Materials· Volume 7· Issue 23
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Source abstract

Abstract

Abstract 2D transition metal dichalcogenide (TMD)‐based phototransistors generally work under photoconductive, photovoltaic, or photogating mode, in which photocarriers are generated from band‐to‐band excitation. Nevertheless, due to the relatively large bandgap, most TMD phototransistors working under these modes are restricted in visible spectrum. Here, photodetection in 2D multilayer rhenium disulfide (ReS2) transistor via bolometric mode, which relies on light heating induced conductance change instead of band‐to‐band photoexcitation is reported, making it possible for sub‐bandgap photon detection. The bolometric effect induced photoresponse is first revealed by an anomalous sign switching of photocurrent from positive to negative while increasing gate voltage under visible light, which is further validated by the temperature dependent electrical transport measurements. The phototransistor exhibits remarkable photoresponse under infrared regime, beyond the optical bandgap absorption edge of the ReS2 flake. Additionally, it demonstrates a low noise equivalent power, less than 5 × 10−2 pW Hz−1/2, which is very promising for ultra‐weak light detection. Moreover, the response time is below 3 ms, nearly 3–4 orders of magnitude faster than previously reported ReS2 photodetectors. The findings promise bolometric effect as an effective photodetection mode to extend the response spectrum of large bandgap TMDs for novel and high‐performance broadband photodetectors.
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Research context

Electronic materials

OpenAlex topics: 2D Materials and Applications · Graphene research and applications · MXene and MAX Phase Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore

Centre for Advanced 2D Materials and Graphene Research Centre National University of Singapore 6 Science Drive 2 Singapore 117546 Singapore

Department of Physics National University of Singapore 2 Science Drive 3 Singapore 117542 Singapore

State Key Laboratory for Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China

Department of Electrical and Computer Engineering National University of Singapore 4 Engineering Drive 3 Singapore 117583 Singapore

State Key Laboratory of Luminescence and Applications Changchun Institute of Optics Chinese Academy of Sciences No. 3888 Dongnanhu Road Changchun 130033 P. R. China

National University of Singapore (Suzhou) Research Institute 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 China

Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province · Ministry of Education - Singapore · National University of Singapore

References (42)

Show source-provided references
1. 10.1109/2944.64064910.1109/2944.640649 ↗
2. 10.1109/JSTQE.2006.88315110.1109/JSTQE.2006.883151 ↗
3. 10.1109/JPROC.2009.202105210.1109/JPROC.2009.2021052 ↗
4. 10.1038/nphoton.2015.28210.1038/nphoton.2015.282 ↗
5. 10.1038/nnano.2014.21510.1038/nnano.2014.215 ↗
6. 10.1002/adfm.20180380710.1002/adfm.201803807 ↗
7. 10.1038/s41467-018-05397-w10.1038/s41467-018-05397-w ↗
8. 10.1002/adma.20180447010.1002/adma.201804470 ↗
9. 10.1021/acs.chemrev.7b0072710.1021/acs.chemrev.7b00727 ↗
10. 10.1038/nphoton.2014.27110.1038/nphoton.2014.271 ↗
11. 10.1002/adfm.20150420210.1002/adfm.201504202 ↗
12. 10.1126/science.aac943910.1126/science.aac9439 ↗
13. 10.1002/adma.20180086510.1002/adma.201800865 ↗
14. 10.1038/nphoton.2012.31410.1038/nphoton.2012.314 ↗
15. 10.1038/nphoton.2013.25310.1038/nphoton.2013.253 ↗
16. 10.1038/nphoton.2010.4010.1038/nphoton.2010.40 ↗
17. 10.1038/nnano.2009.29210.1038/nnano.2009.292 ↗
18. 10.1021/acs.nanolett.6b0197710.1021/acs.nanolett.6b01977 ↗
19. 10.1038/nphoton.2015.2310.1038/nphoton.2015.23 ↗
20. 10.1038/ncomms748510.1038/ncomms7485 ↗
21. 10.1039/C4CS00257A10.1039/C4CS00257A ↗
22. 10.1021/acsnano.5b0192210.1021/acsnano.5b01922 ↗
23. 10.1021/nn202455710.1021/nn2024557 ↗
24. 10.1038/nnano.2013.10010.1038/nnano.2013.100 ↗
25. 10.1002/adfm.20160388610.1002/adfm.201603886 ↗
26. 10.1002/adma.20170588010.1002/adma.201705880 ↗
27. 10.1002/adma.20160072210.1002/adma.201600722 ↗
28. 10.1002/smll.20150148810.1002/smll.201501488 ↗
29. 10.1002/adfm.20160612910.1002/adfm.201606129 ↗
30. 10.1002/adma.20150549810.1002/adma.201505498 ↗
31. 10.1002/adfm.20150096910.1002/adfm.201500969 ↗
32. 10.1002/adfm.20150454610.1002/adfm.201504546 ↗
33. 10.1038/ncomms425210.1038/ncomms4252 ↗
34. 10.1038/ncomms799110.1038/ncomms7991 ↗
35. 10.1038/nmat445210.1038/nmat4452 ↗
36. 10.1002/adma.20160100210.1002/adma.201601002 ↗
37. 10.1002/adfm.20150440810.1002/adfm.201504408 ↗
38. 10.1126/sciadv.170058910.1126/sciadv.1700589 ↗
39. 10.1038/nnano.2013.14410.1038/nnano.2013.144 ↗
40. 10.1021/nn505237610.1021/nn5052376 ↗
41. 10.1039/C8NR03207F10.1039/C8NR03207F ↗
42. 10.1021/acsnano.5b0485110.1021/acsnano.5b04851 ↗