Highly Sensitive, Gate-Tunable, Room-Temperature Mid-Infrared Photodetection Based on Graphene–Bi₂Se₃ Heterostructure

Jaeseok Kim, Sungjoon Park, Houk Jang, +23

ACS Photonics

EngineeringBroadband DetectionOptoelectronic DevicesGraphene OffersSemiconductors +15

Near-field sub-diffraction photolithography with an elastomeric photomask

Sangyoon Paik, Gwangmook Kim, Sehwan Chang, +22

Nature Communications

Generation, transport and detection of valley-locked spin photocurrent in WSe2–graphene–Bi2Se3 heterostructures

Soonyoung Cha, Minji Noh, Jehyun Kim, +15

Nature Nanotechnology

SemiconductorsSpintronicsGraphene Quantum DotEngineeringPhysics +10

Spinful hinge states in the higher-order topological insulators WTe2

Jekwan Lee, Jaehyeon Kwon, Eunho Lee, +6

Nature Communications

Light Polarization-Controlled Conversion of Ultrafast Coherent–Incoherent Exciton Dynamics in Few-Layer ReS₂

Sangwan Sim, Doeon Lee, Jekwan Lee, +6

Nano Letters

Role of weak interlayer coupling in ultrafast exciton-exciton annihilation in two-dimensional rhenium dichalcogenides

Sangwan Sim, Doeon Lee, Jekwan Lee, +10

Physical review. B./Physical review. B

SemiconductorsExciton-exciton AnnihilationTransition Metal ChalcogenidesEngineeringPhysics +13

Picosecond Competing Dynamics of Apparent Semiconducting-Metallic Phase Transition in the Topological Insulator Bi₂Se₃

Sangwan Sim, Seung-Min Lee, Jisoo Moon, +12

ACS Photonics

Thz PhotonicsCharge ExcitationsEngineeringTopological MaterialsStrongly Correlated Electron Systems +22

Ultrafast non-excitonic valley Hall effect in MoS2/WTe2 heterobilayers

Jekwan Lee, Wonhyeok Heo, Myungjun Cha, +7

Nature Communications

Role of Spin Hall Effect in the Topological Side Surface Conduction

Jekwan Lee, Sangwan Sim, Soohyun Park, +11

ACS Photonics

Spin TorqueCharge ExcitationsEngineeringTopological MaterialsSpin-charge Conversion +24