About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Hybrid Organic-Inorganic Materials for Alternative Energy
|
| Presentation Title |
Significance of IR-observable background shift in organics/TiO₂ thin films in dye-sensitized solar cell, Mg battery, and photocatalysis |
| Author(s) |
Steven S. C. Chuang, Yuli Marcela Henao Hoyos |
| On-Site Speaker (Planned) |
Yuli Marcela Henao Hoyos |
| Abstract Scope |
Infrared-observable background shifts in TiO₂-based hybrid films offer direct spectroscopic evidence of electron accumulation in conduction bands and trap states. Operando infrared studies under applied voltage or illumination reveal baseline elevation in the low-wavenumber region, corresponding to electron transfer and accumulation. These features, observed in organics/TiO₂ thin films used in dye-sensitized solar cells, Mg-ion batteries, and photocatalytic systems, serve as diagnostic fingerprints of interfacial charge dynamics. Unlike steady-state methods, this transient spectral approach provided time-resolved mechanistic insight under operating conditions. The consistency of these shifts across diverse hybrid interfaces establishes infrared background response as a valuable tool for probing charge storage, transfer, and recombination in energy conversion processes. |