By Associate Professor Ashraf Uddin

Journal articles

Lee C; Uddin A; Teo C, 2006, 'Effect of polar dopant on energetic and positional disorders in tris(8-hydroxyquinolinato) aluminum (Alq3)', Applied Physics A - Materials Science and Processing, 83, pp. 115 - 121, http://dx.doi.org/10.1007/s00339-005-3467-y

Liu C; Yoon S; Fan W; Uddin A; Yuan S, 2006, 'Ridge-width dependence on high-temperature continuous-wave operation of native oxide-confined InGaAsN triple-quantum-well lasers', IEEE Photonics Technology Letters, 18, pp. 791 - 793

Ou Y; Zhang J; Uddin A; Liu C; Yuan S; Chan M; Bo B; Liu G; Jiang H, 2006, 'Temperature Dependence of Interband Transition in InGaAsN Strain-Compensated Quantum Well and Ridge Waveguide Lasers Fabricated with Pulsed Anodic Oxidation', Applied Physics A - Materials Science and Processing, 82, pp. 305 - 308, http://dx.doi.org/10.1007/s00339-005-3294-1

Que W; Uddin A; Hu X, 2006, 'Thin film TiO2 electrodes derived by sol-gel process for hybrid photovoltaic applications', Journal of Power Sources, 159, pp. 353 - 356, http://dx.doi.org/10.1016/j.jpowsour.2006.04.009

Qu Y; Zhang JX; Uddin A; Wang SM; Sadeghi M; Larsson A; Bo B; Liu G; Jiang H, 2005, 'High performance highly strained InGaAs quantum-well ridge waveguide lasers', Science in China, Series E: Technological Sciences, 48, pp. 679 - 684, http://dx.doi.org/10.1360/102005-91

Zahid KM; Uddin A, 2005, 'Influence of overpressure on formation velocity evaluation of Neogene strata from the eastern Bengal Basin, Bangladesh', Journal of Asian Earth Sciences, 25, pp. 419 - 429, http://dx.doi.org/10.1016/j.jseaes.2004.04.003

Savrda CE; Uddin A, 2005, 'Large Macaronichnus and their behavioral implications (Cretaceous Eutaw Formation, Alabama, USA)', Ichnos, 12, pp. 1 - 9, http://dx.doi.org/10.1080/10420940590914453

Saunders JA; Lee MK; Uddin A; Mohammad S; Wilkin RT; Fayek M; Korte NE, 2005, 'Natural arsenic contamination of Holocene alluvial aquifers by linked tectonic, weathering, and microbial processes', Geochemistry, Geophysics, Geosystems, 6, http://dx.doi.org/10.1029/2004GC000803

Yu H; Kennedy EM; Uddin MA; Sullivan SP; Dlugogorski BZ, 2005, 'Experimental and computational studies of the thermal decomposition of halon 1211', International Journal of Chemical Kinetics, 37, pp. 134 - 146, http://dx.doi.org/10.1002/kin.20055

Que W; Hu X; Uddin A; Liu W, 2005, 'Effects of heat treatment temperature on up-conversion luminescence properties of titania/γ-glycidoxypropyltrimethoxysilane composite thin films dispersed with neodymium oxalate nanoparticles', Materials Letters, 59, pp. 1614 - 1618, http://dx.doi.org/10.1016/j.matlet.2004.12.053

Yu H; Kennedy E; Uddin MA; Sullivan S; Dlugogorski B, 2005, 'Experimental and computational studies of the gas-phase reaction of halon 1211 with hydrogen', Environmental Science and Technology, 39, pp. 3020 - 3028

Zhang J; Cheng H; Chen Y; Uddin A; Yuan S; Geng S; Zhang S, 2005, 'Growth of AlN films on Si (100) and Si(111) substrates by reactive magnetron sputtering', Surface and Coatings Technology, 198, pp. 68 - 73, http://dx.doi.org/10.1016/j.surfcoat.2004.10.075

Zhang J; Chen Y; Cheng H; Uddin A; Yuan S; Pita K; Andersson T, 2005, 'Interface study of AlN grown on Si substrates by RF magnetron reactive sputtering', Thin Solid Films, 471, pp. 336 - 341, http://dx.doi.org/10.1016/j.tsf.2004.06.161

Chen B; Sun X; Wong T; Hu X; Uddin A, 2005, 'Organic light-emitting devices with in situ post-growth annealed organic layers', Applied Physics Letters, 87, http://dx.doi.org/10.1063/1.2009831

Hu X; Zhao X; Uddin A; Lee C, 2005, 'Preparation, characterization and electronic and optical properties of plasma-polymerized nitriles', Thin Solid Films, 477, pp. 81 - 87, http://dx.doi.org/10.1016/j.tsf.2004.08.118

Zhang J; Ou Y; Chen Y; Uddin A; Yuan S, 2005, 'Structural and optical characteristics of GaN epilayers frown on Si (111) substrates using hydride vapor phase epitaxy', Journal of Crystal Growth, 282, pp. 137 - 142

Uddin A; Wei A; Andersson T, 2005, 'Study of degradation mechanism of blue light emitting diodes', Thin Solid Films, 483, pp. 378 - 381, http://dx.doi.org/10.1016/j.tsf.2005.01.018

Uddin A; Lundberg N, 2004, 'Miocene sedimentation and subsidence during continent-continent collision, Bengal basin, Bangladesh', Sedimentary Geology, 164, pp. 131 - 146, http://dx.doi.org/10.1016/j.sedgeo.2003.09.004

Uddin A; Lee C; Hu X; Wong T, 2004, 'Interface-injection limited carrier transport properties of Alq3', Applied Physics A - Materials Science and Processing, 78, pp. 401 - 405, http://dx.doi.org/10.1007/s00339-003-2188-3

Lee C; Uddin A; Hu X; Andersson T, 2004, 'Study of Alq3 thermal evaporation rate effects on the OLED', Materials Science and Engineering B - Solid State Materials for Advanced Technology, 112, pp. 14 - 18, http://dx.doi.org/10.1016/j.mseb.2004.05.009

Uddin A; Tay YS, 2004, 'Study of asymmetrical effects of silicon submicron transistors', Microelectronics Journal, 35, pp. 641 - 645, http://dx.doi.org/10.1016/j.mejo.2004.04.010

Lee MK; Saunders JA; Uddin A, 2003, 'Geochemical and hydrologic considerations on evolution of groundwaters in a portion of the Mississippi embayment', Southeastern Geology, 42, pp. 83 - 98

Uddin A; Lundberg N, 1999, 'A paleo-Brahmaputra? Subsurface lithofacies analysis of Miocene deltaic sediments in the Himalayan-Bengal system, Bangladesh', Sedimentary Geology, 123, pp. 239 - 254, http://dx.doi.org/10.1016/S0037-0738(98)00134-1

Uddin A; Lundberg N, 1998, 'Unroofing history of the eastern Himalaya and the Indo-Burman ranges: heavy-mineral study of Cenozoic sediments from the Bengal Basin, Bangladesh', Journal of Sedimentary Research, 68, pp. 465 - 472, http://dx.doi.org/10.1306/D42687DE-2B26-11D7-8648000102C1865D

Uddin A; Lundberg N, 1998, 'Cenozoic history of the Himalayan-Bengal system: Sand composition in the Bengal basin, Bangladesh', Bulletin of the Geological Society of America, 110, pp. 497 - 511, http://dx.doi.org/10.1130/0016-7606(1998)110<0497:CHOTHB>2.3.CO;2

Uddin A; Lundberg N, 1998, 'Unroofing history of the eastern himalaya and the indo-burman ranges: heavy-mineral study of cenozoic sediments from the bengal basin, bangladesh', Journal of Sedimentary Research, 68, pp. 465 - 472, http://dx.doi.org/10.2110/jsr.68.465

Uddin A; Uemoto T, 1995, 'Trap centers in germanium-implanted and in as-grown 6h-Sic', Japanese Journal of Applied Physics, 34, pp. 3023 - 3029, http://dx.doi.org/10.1143/JJAP.34.3023

Uddin A; Mitsuhashi H; Uemoto T, 1994, 'Investigation of deep levels and residual impurities in sublimation-grown sic substrates', Japanese Journal of Applied Physics, 33, pp. L908 - L911, http://dx.doi.org/10.1143/JJAP.33.L908

Uddin A; Uemoto T, 1993, 'Observation of deep level in p-n junction diode of 6h:Sic', Japanese Journal of Applied Physics, 32, pp. L1617 - L1672, http://dx.doi.org/10.1143/JJAP.32.L1670

Nakata H; Kobori H; Uddin A; Ohyama T; Otsuka E, 1992, 'Diffusion and recombination of photocarriers in Ge and GaAs', Semiconductor Science and Technology, 7, http://dx.doi.org/10.1088/0268-1242/7/3B/085

Nakata H; Uddin A; Otsuka E, 1992, 'Photoluminescence from an electron-hole plasma in semi-insulating GaAs', Semiconductor Science and Technology, 7, pp. 1266 - 1270, http://dx.doi.org/10.1088/0268-1242/7/10/009

Uddin A; Nakata H; Otsuka E, 1990, 'Impact ionization of free excitons in stressed pure germanium', Physical Review B, 41, pp. 3078 - 3081, http://dx.doi.org/10.1103/PhysRevB.41.3078

Uddin A; Nakata H; Otsuka E, 1990, 'Off-equilibrium population of holes in the stress-split valence bands in photoexcited silicon and germanium', Physical Review B, 41, pp. 3752 - 3760, http://dx.doi.org/10.1103/PhysRevB.41.3752

Uddin A; Andersson TG, 1989, 'Investigation of high-quality GaAs:In layers grown by molecular-beam epitaxy', Journal of Applied Physics, 65, pp. 3101 - 3106, http://dx.doi.org/10.1063/1.342706

Uddin A; Nakata H; Otsuka E, 1989, 'High density hot excitons in stressed pure silicon', Solid State Communications, 69, pp. 159 - 162, http://dx.doi.org/10.1016/0038-1098(89)90383-9

Uddin A; Nakata H; Otsuka E, 1989, 'Investigation of the uniaxial stress effect on the exciton system in pure silicon and germanium', Japanese Journal of Applied Physics, 28, pp. 2227 - 2233, http://dx.doi.org/10.1143/JJAP.28.2227

Andersson TG; Chen ZG; Kulakovskii VD; Uddin A; Vallin JT, 1988, 'Photoluminescence and photoconductivity measurements on band-edge offsets in strained molecular-beam-epitaxy-grown InxGa1-xAs/GaAs quantum wells', Physical Review B, 37, pp. 4032 - 4038, http://dx.doi.org/10.1103/PhysRevB.37.4032

Uddin A; Vallin JT; Andersson G, 1987, 'OPTICAL STUDY ON BAND EDGE OFFSET IN STRAINED MBE GROWN (InGa) As-GaAs AND (InGa) As-(AlGa) As QUANTUM WELLS', J. Phys. Colloques

Andersson TG; Chen ZG; Kulakovskii VD; Uddin A; Vallin JT, 1987, 'Band edge offsets in strained (InGa)As-(AlGa)As heterostructures', Solid State Communications, 64, pp. 379 - 382, http://dx.doi.org/10.1016/0038-1098(87)90987-2

Andersson TG; Chen ZG; Kulakovskii VD; Uddin A; Vallin JT, 1987, 'Variation of the critical layer thickness with in content in strained InxGa1-xAs-GaAs quantum wells grown by molecular beam epitaxy', Applied Physics Letters, 51, pp. 752 - 754, http://dx.doi.org/10.1063/1.98856

Conference Papers

Wang Y; Hu J; Jia H; Hu W; Hassan M; Uddin A; Kusy B; Youssef M, 2022, 'Indoor localization using light spectral information', in Proceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM, pp. 820 - 822, http://dx.doi.org/10.1145/3495243.3558249

Hu J; Wang Y; Jia H; Hu W; Hassan M; Uddin A; Kusy B; Youssef M, 2022, 'Passive light spectral indoor localization', in Proceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM, pp. 832 - 834, http://dx.doi.org/10.1145/3495243.3558253

Ma D; Lan G; Hassan M; Hu W; Upama M; Uddin A; Youssef M, 2019, 'SolarGest: Ubiquitous and Batt ery-free Gesture Recognition using Solar Cells', in Proceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM, Association for Computing Machinery (ACM), Los Cabos, Mexico, presented at The 25th Annual International Conference on Mobile Computing and Networking (MobiCom ’19), Los Cabos, Mexico, 21 October 2019 - 25 October 2019, http://dx.doi.org/10.1145/3300061.3300129

Duan L; Zhang Y; Yi H; Xu C; Haque F; Uddin A, 2019, 'Degradation Mechanism Identified for the Fullerene and Non-fullerene based Organic Solar Cells under Ambient Condition', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 461 - 464, http://dx.doi.org/10.1109/PVSC40753.2019.8980941

Yi H; Duan L; Haque F; Xu C; Conibeer G; Uddin A, 2019, 'Surface Passivation on PEDOT:PSS in conventional perovskite solar cells', in Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 1200 - 1202, http://dx.doi.org/10.1109/PVSC40753.2019.8980589

Ma D; Lan G; Hassan M; Hu W; Upama M; Uddin A; Youssef M, 2018, 'Gesture Recognition with Transparent Solar Cells: A Feasibility Study', in Proceedings of the 12th International Workshop on Wireless Network Testbeds, Experimental Evaluation & Characterization, ACM, New Delhi, India, pp. 79 - 88, presented at The 24th Annual International Conference on Mobile Computing and Networking, New Delhi, India, 29 October 2018 - 02 November 2018, http://dx.doi.org/10.1145/3267204.3267209

Wang D; Elumalai NK; Mahmud MA; Upama MB; Wright M; Chan KH; Xu C; Uddin A, 2017, 'Effect of PCBM film thickness on the performance of inverted perovskite solar cells', in 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017, pp. 2667 - 2671, http://dx.doi.org/10.1109/PVSC.2017.8366363

Mahmud MA; Elumalai NK; Upama MB; Wang D; Wright M; Chan KH; Xu C; Uddin A, 2017, 'Graded (AlzGa1-z)xIn1-xP Window-Emitter Structures for Improved Short-Wavelength Response', in 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017, pp. 2079 - 2083, http://dx.doi.org/10.1109/PVSC.2017.8366356

Elumalai NK; Mahmud A; Wang D; Wright M; Upama MB; Chan KH; Xu C; Uddin A, 2017, 'Hysteresis and electrode polarization in normal and inverted hybrid perovskite solar cells', in 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017, pp. 935 - 936, http://dx.doi.org/10.1109/PVSC.2017.8366111

Upama MB; Wright M; Elumalai NK; Xu C; Mahmud MA; Wang D; Chan KH; Uddin A, 2017, 'Notice of Removal: Sensitization of PTB7:PC71BM organic solar cells using Si-PCPDTBT', in 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017, pp. 1 - 6, http://dx.doi.org/10.1109/PVSC.2017.8366362

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