Probing charge transfer in 2D MoS2/tellurene type-II p–n heterojunctions

Basant Chitara, Kunyan Zhang, Martha Y.Garcia Cervantes, Tej B. Limbu, Bikram Adhikari, Shengxi Huang, Fei Yan

Research output: Contribution to journalComment/debatepeer-review

4 Scopus citations

Abstract

2D heterostructures offer new opportunities for harnessing a wider range of the solar spectrum in high-performance photovoltaic devices. Here, we explore a type-II p–n heterojunction, by exploiting air-stable tellurene (Te) in combination with MoS2, to study its charge transfer for photovoltaic applications. The charge transfer of MoS2/Te heterojunction is confirmed by photoluminescence spectroscopy, Raman spectroscopy and Kelvin probe force microscopy. The exciton binding energy for MoS2/Te heterojunction is estimated to be around 10 meV, which is much lower than that for monolayer MoS2. This strategy can be exploited to develop next-generation intrinsically ultrathin light-harvesting devices. Graphical abstract: [Figure not available: see fulltext.].

Original languageEnglish (US)
Pages (from-to)868-872
Number of pages5
JournalMRS Communications
Volume11
Issue number6
DOIs
StatePublished - Dec 2021

All Science Journal Classification (ASJC) codes

  • General Materials Science

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