biostudies-literatureUnknown17(50)Kim DWMixed-dimensional heterojunctions (HJs) between compound semiconductors and transition metal dichalcogenides (TMDCs) provide a versatile platform for modulating interfacial exciton dynamics. While compound semiconductors offer precise compositional control for bandgap tuning across wide spectral ranges, they exhibit weak exciton binding energies that limit exciton stability at room temperature. Mixed-dimensional HJs address this limitation by integrating compound semiconductors with TMDCs, whose strong quantum confinement and reduced dielectric screening enable the formation of stable interlayer excitons with enhanced light-matter coupling. Here, we demonstrate a mixed-dimensional heterojunction comprising trilayer MoS₂ interfaced with an Al₂O₃/InGaN/GaN siACS applied materials & interfaces68265-68275https://www.ebi.ac.uk/biostudies/studies/S-EPMC12723632biostudies-literatureObservation of Interlayer Excitons in Mixed-Dimensional MoS<sub>2</sub> and InGaN/GaN Quantum Well Heterojunctions.PMC12723632Lee SJeon GWKim KKLee KPark DHKim JWJeon KSong JJeong KKim SKim DWBaek YYi GCfalseObservation of Interlayer Excitons in Mixed-Dimensional MoS<sub>2</sub> and InGaN/GaN Quantum Well Heterojunctions.Mixed-dimensional heterojunctions (HJs) between compound semiconductors and transition metal dichalcogenides (TMDCs) provide a versatile platform for modulating interfacial exciton dynamics. While compound semiconductors offer precise compositional control for bandgap tuning across wide spectral ranges, they exhibit weak exciton binding energies that limit exciton stability at room temperature. Mixed-dimensional HJs address this limitation by integrating compound semiconductors with TMDCs, whose strong quantum confinement and reduced dielectric screening enable the formation of stable interlayer excitons with enhanced light-matter coupling. Here, we demonstrate a mixed-dimensional heterojunction comprising trilayer MoS₂ interfaced with an Al₂O₃/InGaN/GaN si2025-01-01T00:00:00Z2025 Dec2026-06-08T05:04:14.038Z2026-06-08T03:08:43.394ZS-EPMC127236324125130610.1021/acsami.5c16066