Semiconducting Molybdenum Disulfide Research Articles

Layered semiconductor molybdenum disulfide nanomembrane based Schottky-barrier solar cells

We demonstrate Schottky-barrier solar cells employing a stack of layer-structured semiconductor molybdenum disulfide (MoS(2)) nanomembranes, synthesized by the chemical-vapor-deposition method, as the critical photoactive layer. An MoS(2) nanomembrane forms a Schottky-barrier with a metal contact by the layer-transfer process onto an indium tin oxide (ITO) coated glass substrate. Two vibrational modes in MoS(2) nanomembranes, E(1)(2g) (in-plane) and A(1g) (perpendicular-to-plane), were verified by Raman spectroscopy. With a simple stacked structure of ITO-MoS(2)-Au, the fabricated solar cell demonstrates a photo-conversion efficiency of 0.7% for ~110 nm MoS(2) and 1.8% for ~220 nm MoS(2). The improvement is attributed to a substantial increase in photonic absorption. The MoS(2) nanomembrane exhibits efficient photo-absorption in the spectral region of 350-950 nm, as confirmed by the external quantum efficiency. A sizable increase in MoS(2) thickness results in only minor change in Mott-Schottky behavior, indicating that defect density is insensitive to nanomembrane thickness attributed to the dangling-bond-free layered structure.

Flat-band potential of n-type semiconducting molybdenum disulfide by cyclic voltammetry of two-electron reductants: interface energetics and the sustained photooxidation of chloride

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFlat-band potential of n-type semiconducting molybdenum disulfide by cyclic voltammetry of two-electron reductants: interface energetics and the sustained photooxidation of chlorideLynn F. Schneemeyer and Mark S. WrightonCite this: J. Am. Chem. Soc. 1979, 101, 22, 6496–6500Publication Date (Print):October 1, 1979Publication History Published online1 May 2002Published inissue 1 October 1979https://doi.org/10.1021/ja00516a002RIGHTS & PERMISSIONSArticle Views1120Altmetric-Citations77LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (590 KB) Get e-Alerts Get e-Alerts