Research paperExperimental CharacterizationDiffusion of valley-coherent dark excitons in a large-angle incommensurate Moiré homobilayerArnab Barman Ray, Trevor Ollis, Sethuraj K. R., Anthony Nickolas VamivakasarXiv·2025·10.48550/arxiv.2405.12901·arXiv:2405.12901AbstractThe paper studies large-angle twisted n-doped MoSe₂ homobilayers and shows that a brightened dark intralayer exciton diffuses more efficiently than bright trions or excitons, with diffusion lengths greater than 4 microns. Temperature-dependent PL reveals a brightened dark trion and the dark exciton exhibits robust valley coherence, attributed to reduced symmetry and strong dielectric contrast.Read more
n-doped MoSe₂ monolayer assembled on thin flat hBN flakes over a distributed Bragg reflector.2 characterizations3 figuresExperimentalMoSe₂Studied MaterialBNSubstrate / Dielectricdistributed Bragg reflectorSubstrate / DielectricExpand
large-angle twisted n-doped MoSe₂ homobilayer assembled on thin flat hBN flakes over a distributed Bragg reflector.4 characterizations6 properties3 figuresExperimentalMoSe₂Studied MaterialBNSubstrate / Dielectricdistributed Bragg reflectorSubstrate / DielectricExpand
Research paperExperimental CharacterizationDiffusion of valley-coherent dark excitons in a large-angle incommensurate Moiré homobilayerArnab Barman Ray, Trevor Ollis, Sethuraj K. R., Anthony Nickolas VamivakasarXiv·2025·10.48550/arxiv.2405.12901·arXiv:2405.12901AbstractThe paper studies large-angle twisted n-doped MoSe₂ homobilayers and shows that a brightened dark intralayer exciton diffuses more efficiently than bright trions or excitons, with diffusion lengths greater than 4 microns. Temperature-dependent PL reveals a brightened dark trion and the dark exciton exhibits robust valley coherence, attributed to reduced symmetry and strong dielectric contrast.Read more
n-doped MoSe₂ monolayer assembled on thin flat hBN flakes over a distributed Bragg reflector.2 characterizations3 figuresExperimentalMoSe₂Studied MaterialBNSubstrate / Dielectricdistributed Bragg reflectorSubstrate / DielectricExpand
large-angle twisted n-doped MoSe₂ homobilayer assembled on thin flat hBN flakes over a distributed Bragg reflector.4 characterizations6 properties3 figuresExperimentalMoSe₂Studied MaterialBNSubstrate / Dielectricdistributed Bragg reflectorSubstrate / DielectricExpand
Research paperExperimental CharacterizationDiffusion of valley-coherent dark excitons in a large-angle incommensurate Moiré homobilayerArnab Barman Ray, Trevor Ollis, Sethuraj K. R., Anthony Nickolas VamivakasarXiv·2025·10.48550/arxiv.2405.12901·arXiv:2405.12901AbstractThe paper studies large-angle twisted n-doped MoSe₂ homobilayers and shows that a brightened dark intralayer exciton diffuses more efficiently than bright trions or excitons, with diffusion lengths greater than 4 microns. Temperature-dependent PL reveals a brightened dark trion and the dark exciton exhibits robust valley coherence, attributed to reduced symmetry and strong dielectric contrast.Read more
n-doped MoSe₂ monolayer assembled on thin flat hBN flakes over a distributed Bragg reflector.2 characterizations3 figuresExperimentalMoSe₂Studied MaterialBNSubstrate / Dielectricdistributed Bragg reflectorSubstrate / DielectricExpand
large-angle twisted n-doped MoSe₂ homobilayer assembled on thin flat hBN flakes over a distributed Bragg reflector.4 characterizations6 properties3 figuresExperimentalMoSe₂Studied MaterialBNSubstrate / Dielectricdistributed Bragg reflectorSubstrate / DielectricExpand
Research paperExperimental CharacterizationDiffusion of valley-coherent dark excitons in a large-angle incommensurate Moiré homobilayerArnab Barman Ray, Trevor Ollis, Sethuraj K. R., Anthony Nickolas VamivakasarXiv·2025·10.48550/arxiv.2405.12901·arXiv:2405.12901AbstractThe paper studies large-angle twisted n-doped MoSe₂ homobilayers and shows that a brightened dark intralayer exciton diffuses more efficiently than bright trions or excitons, with diffusion lengths greater than 4 microns. Temperature-dependent PL reveals a brightened dark trion and the dark exciton exhibits robust valley coherence, attributed to reduced symmetry and strong dielectric contrast.Read more
n-doped MoSe₂ monolayer assembled on thin flat hBN flakes over a distributed Bragg reflector.2 characterizations3 figuresExperimentalMoSe₂Studied MaterialBNSubstrate / Dielectricdistributed Bragg reflectorSubstrate / DielectricExpand
large-angle twisted n-doped MoSe₂ homobilayer assembled on thin flat hBN flakes over a distributed Bragg reflector.4 characterizations6 properties3 figuresExperimentalMoSe₂Studied MaterialBNSubstrate / Dielectricdistributed Bragg reflectorSubstrate / DielectricExpand