ABSTRACT
The only difference between Dot–Sensitized Solar Cells (DSSCs) and Quantum DSSCs (QDSSC) is that the organic dye as photosensitizer is substituted by inorganic nanoparticle quantum dots. The electrolyte or hole transport material is used to transfer charges between photoanode and counter electrode. Counter electrode role is to transfer electrons from the external circuit to electrolyte and catalyzing the reduction reaction of electrolyte. A typical counter electrode is built on a conducting substrate with a layer of catalytic material. Photoanode is core part of a QDSSC, which is responsible for light absorption, generation of electron–hole pairs, and charge carrier transport. The mesoporous mesoporous metal oxide semiconductor film (MOS) plays two crucial roles in determining the performance of a cell device. Some popular methods in fabricating Titanium oxide molecule film include doctor blading, screen printing, spin coating, hydrothermal, and electrodeposition. A MOS film in QDSSC application should have both large specific surface area and high charge carrier conductivity.
