Inorganic–organic interfaces in hybrid solar cells

Hybrid solar cells

Historically, conventional solar cells were built from inorganic materials such as silicon. Although the efficiency of such conventional solar cells is high, very expensive materials and energy intensive processing techniques are required. Hybrid and photoelectrochemical (dye sensitized) solar cells have been the cheap alternatives for conventional silicon solar cells. A hybrid solar cell consi...

Hybrid nanorod-polymer solar cells.

We demonstrate that semiconductor nanorods can be used to fabricate readily processed and efficient hybrid solar cells together with polymers. By controlling nanorod length, we can change the distance on which electrons are transported directly through the thin film device. Tuning the band gap by altering the nanorod radius enabled us to optimize the overlap between the absorption spectrum of t...

Infrared modulation spectroscopy of interfaces in amorphous silicon solar cells

We report infrared depletion modulation spectra for near-interface states in a-Si pin solar cells. The effect of additional visible illumination (optical bias) was explored as a means to separate the spectra for n/i and p/i interface states. We found a sharp, optical bias-induced spectral line near 0.8 eV. We attribute this line due to internal optical transitions of dopant-defect complexes in ...

Physical chemistry of hybrid perovskite solar cells.

Hybrid perovskite solar cells have provided a steep change in photovoltaics research. They combine the key advantages of all emerging photovoltaic technologies, including: inorganic thin-film photovoltaics (high efficiency); organic photovoltaics (ease and economy of deposition and diversity of materials) and dye-sensitized solar cells (chemical versatility and architecture). For this reason, t...

New Concepts for hybrid solar cells