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David B. Geohegan

University of Tennessee at Knoxville

81H-index
491Paper Count
2.2WCitation Count
Published Papers 174
Publication Date
Spontaneous Polarization Suppression of Exciton–Exciton Annihilation in Rhombohedral-Stacked Bilayer Molybdenum Disulfide
err2026-06-25
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errOAAI
errTae Gwan Park; Xufan Li; Kyungnam Kang; David B. Geohegan; Christopher M. Rouleau; Alexander A. Puretzky; Kai Xiao
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Substrate-Directed Underlayer Growth of Bilayer MoS2 Revealed by Mo Isotope Labeling
err2026-02-23
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PREAI
errYiling Yu; Gang Seob Jung; Austin Houston; Jordan A. Hachtel; Sinchul Yeom; Mina Yoon; Anton V. Ievlev; Alexander A. Puretzky; Christopher M. Rouleau; Gerd Duscher; David B. Geohegan; Kai Xiao
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Pulsed laser synthesis of mesoporous metal chalcogenide thin films
err2026-01-10
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PREAI
errDorien E. Carpenter; Zahra Nasiri; Nithesh R. Palagiri; Kamron L. Strickland; Sumner B. Harris; David B. Geohegan; Renato P. Camata
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Direct Observation of Ultrafast Defect-Bound and Free Exciton Dynamics in Defect-Engineered WS2 Monolayers
err2026-01-01
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PREAI
errPark, Tae Gwan; Li, Xufan; Kang, Kyungnam; Houston, Austin; Collins, Liam; Duscher, Gerd; Geohegan, David B.; Rouleau, Christopher M.; Xiao, Kai; Puretzky, Alexander A.
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Encapsulation of Monolayer 2D Materials Using Kinetic Energy-Controlled Pulsed Laser Deposition
err2025-09-01
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PREAI
errYimam, Daniel T.; Harris, Sumner B.; Houston, Austin C.; Vlassiouk, Ivan V.; Puretzky, Alexander A.; Ghosh, Sujoy; Kang, Kyungnam; Rouleau, Christopher; Duscher, Gerd; Eres, Gyula; Geohegan, David B.; Xiao, Kai
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Discovery of 2D Superatomic Mixed Crystal via Encapsulated Growth Inside a Scanning Transmission Electron Microscope
err2025-07-25
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PREAI
errAustin C Houston; Sumner B Harris; Wolfgang Windl; Hao Wang; David B Geohegan; Kai Xiao; Gerd Duscher
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Modeling and simulation of short-channel MOSFETs operating in deep weak inversion
err2024-09-07
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PREAI
errVann, JM; Smith, MC; Simpson, ML; Thomas, CE; Paulus, MJ; Moore, JA; Baylor, LR; Rochelle, JM; Lowndes, DW; Geohegan, DB; Jellison, GE; Merkulov, VI; Puretzky, AA; Voelkl, E
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Anomalous isotope effect on the optical bandgap in a monolayer transition metal dichalcogenide semiconductor
err2024-02-23
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errOAAI
errYu, Yiling; Turkowski, Volodymyr; Hachtel, Jordan A.; Puretzky, Alexander A.; Ievlev, Anton V.; Din, Naseem U.; Harris, Sumner B.; Iyer, Vasudevan; Rouleau, Christopher M.; Rahman, Talat S.; Geohegan, David B.; Xiao, Kai
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Armor for Steel: Facile Synthesis of Hexagonal Boron Nitride Films on Various Substrates (Adv. Mater. Interfaces 1/2024)
err2024-01-04
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errOAAI
errVlassiouk, Ivan; Smirnov, Sergei; Puretzky, Alexander; Olunloyo, Olugbenga; Geohegan, David B.; Dyck, Ondrej; Lupini, Andrew R.; Unocic, Raymond R.; Meyer III, Harry M.; Xiao, Kai; Briggs, Dayrl; Lavrik, Nickolay; Keum, Jong; Cakmak, Ercan; Harris, Sumner B.; Checa, Marti; Collins, Liam; Lasseter, John; Emery, Reece; Rayle, John; Rack, Philip D.; Stehle, Yijing; Chaturvedi, Pavan; Kidambi, Piran R.; Gu, Gong; Ivanov, Ilia
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Role of Curvature in Stabilizing Boron-Doped Nanocorrugated Graphene
err2023-12-18
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errOAAI
errTian, Mengkun; Tennyson, Wesley D.; Yoon, Mina; Puretzky, Alexander A.; Geohegan, David B.; Duscher, Gerd; Eres, Gyula
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Colossal C130 Fullertubes: Soluble [5,5] C130-D5h(1) Pristine Molecules with 70 Nanotube Carbons and Two 30-Atom Hemifullerene End-caps
err2023-10-27
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PREAI
errBourret, Emmanuel; Liu, Xiaoyang; Noble, Cora A.; Cover, Kevin; Davidson, Tanisha P.; Huang, Rong; Koenig, Ryan M.; Reeves, K. Shawn; Vlassiouk, Ivan V.; Cote, Michel; Baxter, Jefferey S.; Lupini, Andrew R.; Geohegan, David B.; Dorn, Harry C.; Stevenson, Steven
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Armor for Steel: Facile Synthesis of Hexagonal Boron Nitride Films on Various Substrates
err2023-10-20
err5
errOAAI
errVlassiouk, Ivan; Smirnov, Sergei; Puretzky, Alexander; Olunloyo, Olugbenga; Geohegan, David B.; Dyck, Ondrej; Lupini, Andrew R.; Unocic, Raymond R.; Meyer III, Harry M.; Xiao, Kai; Briggs, Dayrl; Lavrik, Nickolay; Keum, Jong; Cakmak, Ercan; Harris, Sumner B.; Checa, Marti; Collins, Liam; Lasseter, John; Emery, Reece; Rayle, John; Rack, Philip D.; Stehle, Yijing; Chaturvedi, Pavan; Kidambi, Piran R.; Gu, Gong; Ivanov, Ilia
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Nonlinear Optical Responses of Janus MoSSe/MoS2 Heterobilayers Optimized by Stacking Order and Strain
err2023-08-29
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PREAI
errHung, Nguyen Tuan; Zhang, Kunyan; Thanh, Vuong Van; Guo, Yunfan; Puretzky, Alexander A.; Geohegan, David B.; Kong, Jing; Huang, Shengxi; Saito, Riichiro
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Growing tunable moire matter
err2023-08-14
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PREAI
errGeohegan, David B.; Puretzky, Alexander A.; Xiao, Kai
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Molybdenum Disulfide Nanoribbons with Enhanced Edge Nonlinear Response and Photoresponsivity
err2023-06-25
err5
errOAAI
errGhimire, Ganesh; Ulaganathan, Rajesh Kumar; Tempez, Agnes; Ilchenko, Oleksii; Unocic, Raymond R.; Heske, Julian; Miakota, Denys I.; Xiang, Cheng; Chaigneau, Marc; Booth, Tim; Boggild, Peter; Thygesen, Kristian S.; Geohegan, David B.; Canulescu, Stela
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Real-Time Diagnostics of 2D Crystal Transformations by Pulsed Laser Deposition: Controlled Synthesis of Janus WSSe Monolayers and Alloys
err2023-01-17
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errOAAI
errHarris, Sumner B.; Lin, Yu-Chuan; Puretzky, Alexander A.; Liang, Liangbo; Dyck, Ondrej; Berlijn, Tom; Eres, Gyula; Rouleau, Christopher M.; Xiao, Kai; Geohegan, David B.
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Stabilized Synthesis of 2D Verbeekite: Monoclinic PdSe2 Crystals with High Mobility and In-Plane Optical and Electrical Anisotropy
err2022-07-01
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errOAAI
errGu, Yiyi; Zhang, Lizhi; Cai, Hui; Liang, Liangbo; Liu, Chenze; Hoffman, Anna; Yu, Yiling; Houston, Austin; Puretzky, Alexander A.; Duscher, Gerd; Rack, Philip D.; Rouleau, Christopher M.; Meng, Xiangmin; Yoon, Mina; Geohegan, David B.; Xiao, Kai
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Photoluminescence Induced by Substitutional Nitrogen in Single-Layer Tungsten Disulfide
err2022-05-10
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errOAAI
errQian, Qingkai; Wu, Wenjing; Peng, Lintao; Wang, Yuanxi; Tan, Anne Marie Z.; Liang, Liangbo; Hus, Saban M.; Wang, Ke; Choudhury, Tanushree H.; Redwing, Joan M.; Puretzky, Alexander A.; Geohegan, David B.; Hennig, Richard G.; Ma, Xuedan; Huang, Shengxi
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Janus Monolayers for Ultrafast and Directional Charge Transfer in Transition Metal Dichalcogenide Heterostructures
err2022-03-02
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errOAAI
errZheng, Ting; Lin, Yu-Chuan; Rafizadeh, Neema; Geohegan, David B.; Ni, Zhenhua; Xiao, Kai; Zhao, Hui
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