Brian Coolidge O'regan
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Brian Coolidge O'reganchemistry Degrees
Chemistry
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Chemical Engineering
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Chemistry
Brian Coolidge O'regan's Degrees
- Masters Chemistry Stanford University
- Bachelors Chemical Engineering California Institute of Technology
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(Suggest an Edit or Addition)Brian Coolidge O'regan's Published Works
Number of citations in a given year to any of this author's works
Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author
Published Works
- A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films (1991) (24399)
- Ionic transport in hybrid lead iodide perovskite solar cells (2015) (1821)
- Electron Transfer Dynamics in Dye-Sensitized Solar Cells (2011) (545)
- Vectorial electron injection into transparent semiconductor membranes and electric field effects on the dynamics of light-induced charge separation (1990) (537)
- Parameters influencing the efficiency of electron injection in dye-sensitized solar cells. (2009) (535)
- Influence of a TiCl4 post-treatment on nanocrystalline TiO2 films in dye-sensitized solar cells. (2006) (516)
- Evidence for ion migration in hybrid perovskite solar cells with minimal hysteresis (2016) (516)
- The dynamics of methylammonium ions in hybrid organic–inorganic perovskite solar cells (2015) (503)
- Influence of the TiCl4 Treatment on Nanocrystalline TiO2 Films in Dye-Sensitized Solar Cells. 2. Charge Density, Band Edge Shifts, and Quantification of Recombination Losses at Short Circuit (2007) (457)
- Experimental determination of the rate law for charge carrier decay in a polythiophene: Fullerene solar cell (2008) (454)
- Kinetic and energetic paradigms for dye-sensitized solar cells: moving from the ideal to the real. (2009) (418)
- Recombination Dynamics as a Key Determinant of Open Circuit Voltage in Organic Bulk Heterojunction Solar Cells: A Comparison of Four Different Donor Polymers (2010) (369)
- Bimolecular recombination losses in polythiophene: Fullerene solar cells (2008) (367)
- Electrodeposited Nanocomposite n–p Heterojunctions for Solid-State Dye-Sensitized Photovoltaics (2000) (357)
- A Solid-State Dye-Sensitized Solar Cell Fabricated with Pressure-Treated P25−TiO2 and CuSCN: Analysis of Pore Filling and IV Characteristics (2002) (350)
- Local field effects on electron transport in nanostructured TiO2 revealed by terahertz spectroscopy. (2006) (331)
- The effect of Al2O3 barrier layers in TiO2/dye/CuSCN photovoltaic cells explored by recombination and DOS characterization using transient photovoltage measurements. (2005) (302)
- Catalysis of recombination and its limitation on open circuit voltage for dye sensitized photovoltaic cells using phthalocyanine dyes. (2008) (283)
- Immobilisation and bioelectrochemistry of proteins on nanoporous TiO2 and ZnO films (2001) (258)
- Interpretation of Optoelectronic Transient and Charge Extraction Measurements in Dye‐Sensitized Solar Cells (2013) (252)
- Preparation of TiO2 (anatase) films on electrodes by anodic oxidative hydrolysis of TiCl3 (1993) (251)
- Influence of 4-guanidinobutyric acid as coadsorbent in reducing recombination in dye-sensitized solar cells. (2005) (250)
- Charge-density-based analysis of the current–voltage response of polythiophene/fullerene photovoltaic devices (2010) (240)
- Optoelectronic Studies of Methylammonium Lead Iodide Perovskite Solar Cells with Mesoporous TiO₂: Separation of Electronic and Chemical Charge Storage, Understanding Two Recombination Lifetimes, and the Evolution of Band Offsets during J-V Hysteresis. (2015) (229)
- Measuring charge transport from transient photovoltage rise times. A new tool to investigate electron transport in nanoparticle films. (2006) (212)
- Structure/function relationships in dyes for solar energy conversion: a two-atom change in dye structure and the mechanism for its effect on cell voltage. (2009) (210)
- Charge extraction analysis of charge carrier densities in a polythiophene/fullerene solar cell: Analysis of the origin of the device dark current (2008) (193)
- Electron Injection Efficiency and Diffusion Length in Dye-Sensitized Solar Cells Derived from Incident Photon Conversion Efficiency Measurements (2009) (193)
- Quantifying Regeneration in Dye-Sensitized Solar Cells (2011) (191)
- Hole‐Transporting Transistors and Circuits Based on the Transparent Inorganic Semiconductor Copper(I) Thiocyanate (CuSCN) Processed from Solution at Room Temperature (2013) (177)
- Efficient photo-hole injection from adsorbed cyanine dyes into electrodeposited copper(I) thiocyanate thin films (1995) (175)
- Optical electrochemistry I: steady-state spectroscopy of conduction-band electrons in a metal oxide semiconductor electrode (1991) (172)
- Water‐Based Electrolytes for Dye‐Sensitized Solar Cells (2010) (159)
- Large Enhancement in Photocurrent Efficiency Caused by UV Illumination of the Dye-Sensitized Heterojunction TiO2/RuLL‘NCS/CuSCN: Initiation and Potential Mechanisms (1998) (158)
- Kinetic competition in liquid electrolyte and solid-state cyanine dye sensitized solar cells (2007) (150)
- Measurement of Charge‐Density Dependence of Carrier Mobility in an Organic Semiconductor Blend (2010) (146)
- Recombination in Annealed and Nonannealed Polythiophene/Fullerene Solar Cells: Transient Photovoltage Studies versus Numerical Modeling (2010) (142)
- Efficient dye‐sensitized charge separation in a wide‐band‐gap p‐n heterojunction (1996) (130)
- Electric field-induced hole transport in copper(I) thiocyanate (CuSCN) thin-films processed from solution at room temperature. (2013) (129)
- Kinetic Competition in a Coumarin Dye-Sensitized Solar Cell: Injection and Recombination Limitations upon Device Performance (2010) (129)
- Electron Diffusion Length in Mesoporous Nanocrystalline TiO2 Photoelectrodes during Water Oxidation (2010) (119)
- Dye adsorption, desorption, and distribution in mesoporous TiO2 films, and its effects on recombination losses in dye sensitized solar cells (2012) (117)
- Interfacial charge recombination between e(-)-TiO2 and the I(-)/I3(-) electrolyte in ruthenium heteroleptic complexes: dye molecular structure-open circuit voltage relationship. (2008) (112)
- Simulation and measurement of complete dye sensitised solar cells: including the influence of trapping, electrolyte, oxidised dyes and light intensity on steady state and transient device behaviour. (2011) (111)
- Slow electron injection on Ru-Phthalocyanine sensitized TiO2. (2007) (108)
- Reverse Bias Behavior of Halide Perovskite Solar Cells (2018) (104)
- Electron Dynamics in Nanocrystalline ZnO and TiO2 Films Probed by Potential Step Chronoamperometry and Transient Absorption Spectroscopy (2002) (104)
- A new ruthenium polypyridyl dye, TG6, whose performance in dye-sensitized solar cells is surprisingly close to that of N719, the ‘dye to beat’ for 17 years (2008) (99)
- Observable Hysteresis at Low Temperature in “Hysteresis Free” Organic–Inorganic Lead Halide Perovskite Solar Cells (2015) (98)
- Interpretation of inverted photocurrent transients in organic lead halide perovskite solar cells: proof of the field screening by mobile ions and determination of the space charge layer widths (2017) (97)
- Performance and Stability of Lead Perovskite/TiO2, Polymer/PCBM, and Dye Sensitized Solar Cells at Light Intensities up to 70 Suns (2014) (96)
- ZnO/CdTe/CuSCN, a promising heterostructure to act as inorganic eta-solar cell (2005) (92)
- Improved environmental stability of organic lead trihalide perovskite-based photoactive-layers in the presence of mesoporous TiO2 (2015) (91)
- Ru(II)-phthalocyanine sensitized solar cells: the influence of co-adsorbents upon interfacial electron transfer kinetics (2009) (88)
- Mobile Ion Concentration Measurement and Open-Access Band Diagram Simulation Platform for Halide Perovskite Solar Cells (2020) (85)
- Calculation of activation energies for transport and recombination in mesoporous TiO2/dye/electrolyte films--taking into account surface charge shifts with temperature. (2006) (84)
- Re-evaluation of recombination losses in dye-sensitized cells: the failure of dynamic relaxation methods to correctly predict diffusion length in nanoporous photoelectrodes. (2009) (83)
- Simultaneous Transient Absorption and Transient Electrical Measurements on Operating Dye-Sensitized Solar Cells: Elucidating the Intermediates in Iodide Oxidation (2010) (76)
- Corrigendum: The dynamics of methylammonium ions in hybrid organic–inorganic perovskite solar cells (2015) (72)
- Identifying Dominant Recombination Mechanisms in Perovskite Solar Cells by Measuring the Transient Ideality Factor (2018) (72)
- The mechanism behind the beneficial effect of light soaking on injection efficiency and photocurrent in dye sensitized solar cells (2011) (70)
- Optical electrochemistry. 2. Real-time spectroscopy of conduction band electrons in a metal oxide semiconductor electrode (1991) (68)
- The Mechanism of Iodine Reduction by TiO2 Electrons and the Kinetics of Recombination in Dye-Sensitized Solar Cells (2012) (68)
- Factors controlling charge recombination under dark and light conditions in dye sensitised solar cells. (2011) (66)
- Electron Recombination Kinetics and the Analysis of Collection Efficiency and Diffusion Length Measurements in Dye Sensitized Solar Cells (2010) (65)
- Observation of Multiexponential Pico- to Subnanosecond Electron Injection in Optimized Dye-Sensitized Solar Cells with Visible-Pump Mid-Infrared-Probe Transient Absorption Spectroscopy (2013) (62)
- Control of Photocurrent Generation in Polymer/ZnO Nanorod Solar Cells by Using a Solution-Processed TiO2 Overlayer (2010) (60)
- The role of para-alkyl substituents on meso-phenyl porphyrin sensitised TiO2 solar cells: control of the eTiO2/electrolyte+ recombination reaction (2008) (59)
- Managing wetting behavior and collection efficiency in photoelectrochemical devices based on water electrolytes; improvement in efficiency of water/iodide dye sensitised cells to 4% (2012) (58)
- On Charge Carrier Recombination in Sb2S3 and Its Implication for the Performance of Solar Cells (2013) (48)
- Measured binding coefficients for iodine and ruthenium dyes; implications for recombination in dye sensitised solar cells. (2012) (47)
- The Electronic Role of the TiO2 Light-Scattering Layer in Dye-Sensitized Solar Cells (2007) (47)
- 2000 hours photostability testing of dye sensitised solar cells using a cobalt bipyridine electrolyte (2014) (42)
- Rediscovering a key interface in dye-sensitized solar cells: guanidinium and iodine competition for binding sites at the dye/electrolyte surface. (2014) (42)
- The reorganization energy of intermolecular hole hopping between dyes anchored to surfaces (2014) (41)
- In Situ Measurement of Electric-Field Screening in Hysteresis-Free PTAA/FA0.83Cs0.17Pb(I0.83Br0.17)3/C60 Perovskite Solar Cells Gives an Ion Mobility of ∼3 × 10-7 cm2/(V s), 2 Orders of Magnitude Faster than Reported for Metal-Oxide-Contacted Perovskite Cells with Hysteresis. (2018) (39)
- The effect of molecular aggregates over the interfacial charge transfer processes on dye sensitized solar cells (2008) (36)
- The Role of Hole Transport between Dyes in Solid-State Dye-Sensitized Solar Cells (2015) (36)
- Ultra-fast sintered TiO2 films in dye-sensitized solar cells: phase variation, electron transport and recombination (2013) (35)
- Evidence for “Slow” Electron Injection in Commercially Relevant Dye-Sensitized Solar Cells by vis–NIR and IR Pump–Probe Spectroscopy (2013) (33)
- New insight into the regeneration kinetics of organic dye sensitised solar cells. (2012) (33)
- Near-infrared absorbing squaraine dye with extended π conjugation for dye-sensitized solar cells (2013) (32)
- Influence of a TiCl 4 Post-Treatment on Nanocrystalline TiO 2 Films in Dye-Sensitized Solar Cells (2006) (31)
- Do Counter Electrodes on Metal Substrates Work with Cobalt Complex Based Electrolyte in Dye Sensitized Solar Cells (2013) (30)
- Efficient dye regeneration in solid-state dye-sensitized solar cells fabricated with melt processed hole conductors (2012) (29)
- Interdye Hole Transport Accelerates Recombination in Dye Sensitized Mesoporous Films. (2016) (27)
- SHORT COMMUNICATION: ACCELERATED PUBLICATION: Dye solar cells without electrolyte or hole‐transport layers: a feasibility study of a concept based on direct regeneration of the dye by metallic conductors (2005) (22)
- Effect of molecular filtering and electrolyte composition on the spatial variation in performance of dye solar cells (2012) (21)
- Incorporating Electrochemical Halide Oxidation into Drift‐Diffusion Models to Explain Performance Losses in Perovskite Solar Cells under Prolonged Reverse Bias (2021) (20)
- The photoelectrochemical properties of Nb-doped TiO2 semiconducting ceramic membrane (1991) (17)
- The effect of electrolyte filling method on the performance of dye sensitized solar cells (2012) (15)
- Opto-electronic studies of methylammonium lead iodide perovskite solar cells with mesoporous TiO2; separation of electronic and chemical charge storage, understanding two recombination lifetimes, and the evolution of band offsets during JV hysteresis (2015) (11)
- Surface photovoltage measurements: a useful tool for the detection of electron injection processes in extremely thin absorber (ETA) solar cells (2002) (8)
- Brief air heating of TiO2/dye films, to 120–250 °C; the effect on resulting liquid junction dye sensitised solar cells (DSSCs) and melt-processed solid-state DSSCs (2013) (5)
- Solid state photoelectrochemical cells based on dye sensitization (2008) (4)
- Recombination kinetics of interpenetrating heterojunctions: comparison of dye sensitized and polymer solar cells (2005) (2)
- Synthesis of novel colorants for dye-sensitized solar cells and use of greener protocols for heterocyclic synthesis (2013) (1)
- Photoelectrochemical Properties of Nb‐Doped TiO2 Semiconducting Ceramic Membrane. (1991) (1)
- Dye-sensitizedn-p heterojunctions of titanium dioxide and copper thiocyanate, a new interface for photoinduced charge separation (1998) (0)
- Kinetic and Energetic Paradigms for Dye-Sensitized Solar Cells: Moving from the Ideal to the Real (2010) (0)
- Process for the manufacture of a photoelectrochemical cell as well as a cell manufactured according to the same. (1993) (0)
- Comparison of the field and Fermi level dependence of transport and recombination in polymer/C60 cells and solid state dye-sensitized cells (2006) (0)
- Photovoltaic Solar Cell Based on Chlorophyll Dye Pigments Obtained from Brassica oleracea (2020) (0)
- A method for producing a photo-electrochemical cell and a cell made accordingly (1992) (0)
- Recombination Dynamics in Polymer and Dye Sensitized Photovoltaic Cells (2006) (0)
- Procede de fabrication d'une cellule photoelectrochimique et cellule realisee selon ledit procede (1993) (0)
- Dye-sensitized solar cells achieve a new power conversion efficiency record (2022) (0)
- Manufacture of photoelectrochemical cell (1993) (0)
- DYE-SENSTIZED SOLAR CELLUSING CONDUCTIVE FIBERELECTRODE CROSS-REFERENCE TO RELATED PATENT APPLICATION (2017) (0)
- Method and device for placing on a layer of a nanocrystalline material first applying a layer of a second material. (2002) (0)
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