Electrical control of optical properties of monolayer MoS2

• Published in: Solid state communications Vol. 155; pp. 49 - 52
• Main Authors: Newaz, A.K.M., Prasai, D., Ziegler, J.I., Caudel, D., Robinson, S., Haglund Jr, R.F., Bolotin, K.I.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.02.2013; Elsevier
• Subjects: A. Molybdenum disulfide; B. Nanofabrication; Condensed matter: electronic structure, electrical, magnetic, and optical properties; D. Electronic transport; Exact sciences and technology; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of specific thin films; Other semiconductors; Physics; B. Nanofabrication; A. Molybdenum disulfide; D. Electronic transport; Ultrathin films; Line intensity; Excitons; Field effect transistors; Molybdenum sulfide; Photoluminescence; Absorption spectra; Bilayers

We investigate electrical gating of photoluminescence and optical absorption in monolayer molybdenum disulfide (MoS2) configured in field effect transistor geometry. We observe a hundredfold increase in photoluminescence intensity and an increase in absorption at ∼660nm in these devices when an exte...