Author(s): Hu, CQ (Hu, Chuqiao); Li, L (Li, La); Shen, GZ (Shen, Guozhen)

Source: CHINESE JOURNAL OF CHEMISTRY DOI: 10.1002/cjoc.202100229 Early Access Date: JUN 2021

Abstract: Main observation and conclusion Ti3C2 MXene serving as superior electrical conductors presents more specific performance such as transparency, conductivity than gold (Au), and even could form a heterostructure with active materials of the functional devices. Here, a Ti3C2 MXene-Te microplate van der Waals heterostructure based transparent near-infrared photodetector (PD) is exploited. Compared with Au-Te PD, the on-off ratio of the Ti3C2-Te PD is improved by seven orders of magnitude and reaches 9.51 x 10(7) under 1064 nm laser illuminations. Benefiting from the utilization of flexible PET substrate and Ti3C2 conductors in manufacturing PD devices, the Ti3C2-Te PD exhibits excellent flexibility with no noticeable response change after being bent for different states and times. Moreover, 63% transmittance of the fabricated PD devices over the 500-1000 nm wavelength range is obtained. All the above results demonstrate the tremendous potential in wearable optoelectronics.

Accession Number: WOS:000664781600001

ISSN: 1001-604X

eISSN: 1614-7065

Full Text: https://onlinelibrary.wiley.com/doi/10.1002/cjoc.202100229