Title :
Solar cells based on atomically thin crystals
Author :
Furchi, M.M. ; Pospischil, A. ; Mueller, Thomas
Author_Institution :
Inst. of Photonics, Vienna Univ. of Technol., Vienna, Austria
Abstract :
We report photovoltaic energy conversion in atomically thin crystals. We present two device concepts: (i) a lateral p-n junction diode, based on a WSe2 atomic monolayer, where the junction is formed by electrostatic doping using a pair of oppositely biased gate electrodes. (ii) a MoS2/WSe2 van der Waals heterostructure, that utilizes different electron affinities of both materials for the separation of the photoexcited carriers.
Keywords :
molybdenum compounds; monolayers; p-n heterojunctions; semiconductor diodes; semiconductor doping; solar cells; tungsten compounds; MoS2-WSe2; atomic monolayer; atomically thin crystals; electron affinity; electrostatic doping; lateral p-n junction diode; oppositely biased gate electrodes; photoexcited carrier separation; photovoltaic energy conversion; solar cells; van der Waals heterostructure; Atomic layer deposition; Electrodes; Materials; P-n junctions; Photovoltaic cells; Photovoltaic systems;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
