Publications from the Gundogdu Group
                    | 73. Coherent Phonon-Induced Modulation of Charge Transfer in 2D Hybrid Perovskites 72. Spintronic Terahertz Emission in Ultrawide Bandgap Semiconductor/Ferromagnet Heterostructures 71. Room-temperature superfluorescence in hybrid perovskites and its origins 70. High-temperature superfluorescence in methyl ammonium lead iodide 69. Broadband micro-transient absorption spectroscopy enabled by improved lock-in amplification 68. Enhanced Dielectric Screening and Photoluminescence from Nanopillar-Strained MoS2 Nanosheets: Implications for Strain Funneling in Optoelectronic Applications 67. Fermi liquid theory sheds light on hot electron-hole liquid in 1L-MoS2 66. Near Band-Edge Optical Excitation Leading to Catastrophic Ionization and Electron–Hole Liquid in Room-Temperature Monolayer MoS2 65. Reversible Photoluminescence Tuning by Defect Passivation via Laser Irradiation on Aged Monolayer MoS2 64. Room-Temperature Electron–Hole Liquid in Monolayer MoS2 63. Dense Electron-Hole Plasma Formation and Ultra-Long Charge Lifetime in Monolayer MoS2 via Material Tuning 62. Rigid valence band shift due to molecular surface counter-doping of MoS2 61. Aqueous Soluble Fullerene Acceptors for Efficient Eco-Friendly Polymer Solar Cells Processed from Benign Ethanol/Water Mixtures 60. Increased Exciton Delocalization of Polymer upon Blending with Fullerene 59. Every Atom Counts: Elucidating the Fundamental Impact of Structural Change in Conjugated Polymers for Organic Photovoltaics 58. The Role of FRET in Non-Fullerene Organic Solar Cells: Implications for Molecular Design 57. Charge generation dynamics in polymer nonfullerene solar cells with low energy loss 56. MAPbI3 Solar Cells with Absorber Deposited by Resonant Infrared Matrix-Assisted Pulsed Laser Evaporation 55. Polymer non-fullerene solar cells of vastly different efficiencies for minor side-chain modification: impact of charge transfer, carrier lifetime, morphology and mobility 54. Room-Temperature Electron-Hole Liquid in Monolayer MoS2 53. Single Component Organic Solar Cells Based on Oligothiophene-Fullerene Conjugate 52. Monitoring Charge Separation Processes in Quasi-One-Dimensional Organic Crystalline Structures 51. Enhancing Multifunctionalities of Transition Metal Dichalcogenide Monolayers via Intercalation of Molecules and Ions 50. Efficient Generation of Long-Lived Triplet Excitons in 2D Hybrid Perovskite 49. Efficient charge transfer and fine-tuned energy level alignment in a THF-processed fullerene-free organic solar cell with 11.3% efficiency 48. Impact of the photo-induced degradation of electron acceptors on the photophysics, charge transport and device performance of all-polymer and fullerene-polymer solar cells 47. Impact of highly crystalline, isoindigo-based small-molecular additives for enhancing the performance of all-polymer solar cells 46. A near-infrared non-fullerene electron acceptor for high performance polymer solar cells 45. Strong polymer molecular weight-dependent material interactions: impact on the formation of the polymer/fullerene bulk heterojunction morphology 44. Design and synthesis of BODIPY sensitizers with long alkyl chains tethered to N-carbazole and their application for dye sensitized solar cells 43. Lowest energy Frenkel and charge transfer exciton intermixing in one-dimensional copper phthalocyanine molecular lattice 42. A PCBM electron transport layer containing small amounts of dual polymer additives that enables enhanced perovskite solar cell performance 41. Controlling energy levels and blend morphology for all-polymer solar cells via fluorination of a naphthalene diimide-based copolymer acceptor 40. Effects of Cd diffusion and doping in high-performance perovskite solar cells using CdS as electron transport layer 39. Fast charge separation in a non-fullerene organic solar cell with a small driving force 38. Engineering Substrate Interactions for High Luminescence Efficiency of Transition-Metal Dichalcogenide Monolayers 37. Fundamental limits of exciton-exciton annihilation for light emission in transition metal dichalcogenide monolayers 36. Charge Photogeneration in Organic Photovoltaics: Role of Hot versus Cold Charge-Transfer Excitons 35. Charge generation dynamics in efficient all-polymer solar cells: influence of polymer packing and morphology 34. Direct Optical Observation of Stimulated Emission from Hot Charge Transfer Excitons in Bulk Heterojunction Polymer Solar Cells 33. Multidimensional pulse shaper and spectrometer 32. A femtosecond study of the anomaly in electron injection for dye-sensitized solar cells: the influence of isomerization employing Ru(II) sensitizers with anthracene and phenanthrene ancillary ligands 31. Ultrafast valley relaxation dynamics in single layer semiconductors 30. Exciton Valley Relaxation Dynamics in Single Layer WS2 Measured Using Ultrafast Spectroscopy 29. Femtosecond pulse shaping using the geometric phase 28. Many Body Effects in Valleytronics: Direct Measurement of Valley Lifetimes in Single Layer MoS2 27. Effect of p-type doping on the oxidation of H-Si(111) studied by second-harmonic generation 26. Control of the Oxidation Kinetics of H-terminated (111)Si by Using the Carrier Concentration and the Strain: a second-harmonic-generation investigation 25. Effect of strain on bond-specific reaction kinetics during the oxidation of H-terminated (111) Si 24. Invited Article: The coherent optical laser beam recombination technique (COLBERT) spectrometer: Coherent multidimensional spectroscopy made easier 23. Bond-specific reaction kinetics during the oxidation of (111) Si: 22. Back-reflection second-harmonic generation of (111) Si using focused, Gaussian beams: theory and experiment 21. Measurement and control of in-plane surface chemistry during the oxidation of H-Terminated (111) Si 20. Three-Dimensional Electronic Four Wave-Mixing Spectroscopy in GaAs Quantum Wells 19. Two-quantum Two-dimensional Fourier Transform Electronic Spectroscopy of Biexcitons in GaAs Quantum Wells 18. Two-Quantum 2D FT Electronic Spectroscopy of Biexcitons in GaAs Quantum Wells 17. Three-dimensional electronic spectroscopy of excitons in GaA quantum wells 16. Exciton-Exciton Correlations Revealed by Two-Quantum, Two-Dimensional Fourier Transform Optical Spectroscopy 15. Application of non-linear optical second harmonic generation and X-ray absorption and spectroscopies to defect related properties of Hf silicate and Hf Si oxynitride gate dielectrics 14. Efforts toward Developing Probes of Protein Dynamics: Vibrational Dephasing and Relaxation of Carbon-Deuterium Stretching Modes in Deuterated Leucine 13. Multidimensional coherent spectroscopy made easy 12. Relaxation and anharmonic couplings of the O-H stretching vibration of asymmetric strongly hydrogen-bonded complexes 11. Vibrational relaxation of C-D stretching vibrations in CDCl3, CDBr3, and CDl(3) 10. Bias-dependent spin relaxation in a [110]-InAs/AlSb 2DES 9. Room-temperature electric-field controlled spin dynamics in (110)InAs quantum wells 8. Electron and hole spin dynamics in semiconductor quantum dots 7. Ultrafast electron capture into p-modulation-doped quantum dots 6. Effects of rapid thermal annealing on the optical properties of low-loss 1.3μm GaInNAs∕GaAs saturable Bragg reflectors 5. Efficient electron spin detection with positively charged quantum dots 4. GaInNAs/GaAs Bragg-mirror-based structures for novel 1.3 mu m device applications 3. Spin relaxation in (110) and (001) InAs/GaSb superlattices 2. Nonmagnetic semiconductor spin transistor 1. Excited-state dynamics and carrier capture in InGaAs/GaAs quantum dots |