Superior MoS2-decorated CNT composite materials for photoelectric detectors

Abstract Carbon nanotubes (CNTs), outstanding flexible and photoelectric materials, have inspired tremendous innovations in the fields of stretchable and wearable electronics. Exquisite optoelectronic materials are decorated on carbon nanotube walls is an universal method under modification process for CNT. This modification promotes the light-matter interactions and efficient charge-transfer pathways. In this respect, it is still challenging to prepare excellent CNT composites and fabricate state-of-the-art carbon-based flexible electronic devices effectly. Herein, we designed a MoS2-decorated CNT photoelectric composite materials by a facile self-assembly method, which realized exact compatibility and ingenious connection of CNT and MoS2. The flexible photoelectric electronic devices were fabricated by micro-nanofabrication technologies. The photocurrent of CNT-MoS2 exhibited 4 times higher than pure CNT materials, which showed superior photoresponse and recovery ability. The photoinduced charge transfer theory proved that the MoS2 is exceedingly good optical gain materials and benefiting from the interfacial charge-transfer transition. Therefore, the MoS2 can serve as a complement in applications that require excellent photovoltaic semiconductors, which has potential for obstaining the novel proporties nanomaterial system. The enhancement of photosensing performance showing the broad prospect of the burgeoning high performance wearable sensors.