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1. Influence of Dye-Coordinated Metal Ions on Electron Transfer Dynamics at Dye–Semiconductor Interfaces

   https://doi.org/10.1021/acsaem.8b01559  

   Ogunsolu, Omotola O. ; Braun, Alexander J. ; Robb, Alex J. ; Salpage, Sahan R. ; Zhou, Yan ; Hanson, Kenneth ( December 2018 , ACS Applied Energy Materials)
2. Nanosecond Diffuse Reflectance Spectroscopy for In-Situ Analysis of Electron Back-Recombination and Dye Regeneration in Fully Functional, Highly Efficient, Opaque Dye-Sensitized Solar Cell Devices

   https://doi.org/10.1021/acs.jpcc.3c05382  

   Ghadiri, Elham ; Moser, Jacques-E. ( December 2023 , The Journal of Physical Chemistry C)

   Professor Gregory Hartland (Ed.)

   An improved optical design for nanosecond diffuse reflectance (DR) spectroscopy is presented. The in-situ analysis of the electron back-reaction and dye regeneration processes in efficient opaque dye-sensitized solar cell devices (DSCs) was scrutinized for the first time using nanosecond DR spectroscopy. The efficient DSC device is based on an opaque TiO2 double-layer film comprising 400 nm light-scattering particles and 20 nm optically transparent particles. Transmission-based laser techniques are not suitable for studying these or other devices by using the opaque morphologies of TiO2 films. However, time-resolved DR flash photolysis enables the exploration of photophysical processes in a broad variety of opaque or highly light-absorbing and light-scattering materials. We experimentally verified the three important components of DR-based spectroscopy: optical configuration, sample condition, and theoretical quantitative optical models. The large optical angle for diffusive light enables efficient light collection and measurement at a relatively low power. We tested the steady-state and time-resolved concentration dependence of the Kubelka−Munk theory for the quantitative analysis of time-resolved results and observed that the dynamics of electron back-reactions are strongly affected by the morphological parameters of the TiO2 films. With a lifetime of 50 μs, the kinetics of electron back-recombination in the device’s photoanode, which is manufactured with 400 nm TiO2 particles and 20 nm TiO2 particles, are 2 orders of magnitude faster than what has been reported to date for 20 nm particles (1 ms). In contrast to electron back-recombination, the dye regeneration process is not influenced by the TiO2 film morphology. 

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3. Donor group influence on dye-sensitized solar cell device performances: Balancing dye loading and donor size

   https://doi.org/10.1016/j.dyepig.2020.109074  

   David Ndaleh, D.N. ; Nugegoda, Dinesh ; Watson, Jonathon ; Cheema, Hammad ; Delcamp, Jared H. ( March 2021 , Dyes and Pigments)

   null (Ed.)
4. Designing Self-Assembled Dye–Redox Shuttle Systems via Interfacial π-Stacking in Dye-Sensitized Solar Cells for Enhanced Low Light Power Conversion

   https://doi.org/10.1021/acs.energyfuels.2c00633  

   Nugegoda, Dinesh ; Bhattacharya, Shrabanti ; Hunt, Leigh Anna ; Schwartz, Samantha J. ; Turner, Zane H. ; Hammer, Nathan I. ; Jurss, Jonah W. ; Delcamp, Jared H. ( July 2022 , Energy & Fuels)
5. Lewis Acid–Lewis Base Interactions Promote Fast Interfacial Electron Transfers with a Pyridine-Based Donor Dye in Dye-Sensitized Solar Cells

   https://doi.org/10.1021/acsaem.1c02912  

   Nugegoda, Dinesh ; Hunt, Leigh Anna ; Devdass, Anthony ; Cheema, Hammad ; Fortenberry, Ryan C. ; Jurss, Jonah W. ; Hammer, Nathan I. ; Delcamp, Jared H. ( February 2022 , ACS Applied Energy Materials)