%0 Journal Article %1 WOS:000400561500001 %A Raja, Archana %A Chaves, Andrey %A Yu, Jaeeun %A Arefe, Ghidewon %A Hill, Heather M %A Rigosi, Albert F %A Berkelbach, Timothy C %A Nagler, Philipp %A Schueller, Christian %A Korn, Tobias %A Nuckolls, Colin %A Hone, James %A Brus, Louis E %A Heinz, Tony F %A Reichman, David R %A Chernikov, Alexey %C HEIDELBERGER PLATZ 3, BERLIN, 14197, GERMANY %D 2017 %I NATURE RESEARCH %J NATURE COMMUNICATIONS %K imported %R 10.1038/ncomms15251 %T Coulomb engineering of the bandgap and excitons in two-dimensional materials %V 8 %X The ability to control the size of the electronic bandgap is an integral part of solid-state technology. Atomically thin two-dimensional crystals offer a new approach for tuning the energies of the electronic states based on the unusual strength of the Coulomb interaction in these materials and its environmental sensitivity. Here, we show that by engineering the surrounding dielectric environment, one can tune the electronic bandgap and the exciton binding energy in monolayers of WS2 and WSe2 by hundreds of meV. We exploit this behaviour to present an in-plane dielectric heterostructure with a spatially dependent bandgap, as an initial step towards the creation of diverse lateral junctions with nanoscale resolution.

@article{WOS:000400561500001, abstract = {The ability to control the size of the electronic bandgap is an integral part of solid-state technology. Atomically thin two-dimensional crystals offer a new approach for tuning the energies of the electronic states based on the unusual strength of the Coulomb interaction in these materials and its environmental sensitivity. Here, we show that by engineering the surrounding dielectric environment, one can tune the electronic bandgap and the exciton binding energy in monolayers of WS2 and WSe2 by hundreds of meV. We exploit this behaviour to present an in-plane dielectric heterostructure with a spatially dependent bandgap, as an initial step towards the creation of diverse lateral junctions with nanoscale resolution.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {HEIDELBERGER PLATZ 3, BERLIN, 14197, GERMANY}, author = {Raja, Archana and Chaves, Andrey and Yu, Jaeeun and Arefe, Ghidewon and Hill, Heather M and Rigosi, Albert F and Berkelbach, Timothy C and Nagler, Philipp and Schueller, Christian and Korn, Tobias and Nuckolls, Colin and Hone, James and Brus, Louis E and Heinz, Tony F and Reichman, David R and Chernikov, Alexey}, biburl = {https://www.bibsonomy.org/bibtex/2a08c88396f37234d1b34aa0602cb94ed/ppgfis_ufc_br}, doi = {10.1038/ncomms15251}, interhash = {370d940e4c5559e4b0585779f56c491b}, intrahash = {a08c88396f37234d1b34aa0602cb94ed}, issn = {2041-1723}, journal = {NATURE COMMUNICATIONS}, keywords = {imported}, publisher = {NATURE RESEARCH}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Coulomb engineering of the bandgap and excitons in two-dimensional materials}, tppubtype = {article}, volume = 8, year = 2017 }