What is heterojunction cell?

Heterojunction solar cells combine two different technologies into one cell: a crystalline silicon cell sandwiched between two layers of amorphous “thin-film” silicon. This allows an increase in the efficiency of the panels and more energy to be harvested easily when compared to conventional silicon solar panels.

Is fullerene polymeric?

All-carbon poly[60]fullerenes, or intrinsic polymeric fullerenes, are those materials constituted only by C60 molecules connected by covalent bonds without any additional linking groups or side groups.

How dye sensitized solar cells work?

Sunlight passes through the transparent electrode into the dye layer where it can excite electrons that then flow into the conduction band of the n-type semiconductor, typically titanium dioxide. The electrons from titanium dioxide then flow toward the transparent electrode where they are collected for powering a load.

What is homojunction and heterojunction and double heterojunction?

(1) homojunction (single-junction, multi-junction) – junction of the same semiconductor material but with diference tipe of doping. (2) heterojunction (single-junction) – junction of the diference bandgap semiconductor material but with diference tipe of doping.

How do nanotubes work?

Nanotubes act as catalysts when an electric current is passed through them. This enables them to donate electrons to molecules that come in contact with the reaction sites. The reaction is similar to what happens in fuel cells, Chen said, so further research may help in making better fuel cells.

What is the reason that polymer solar cells typically use a bulk heterojunction?

Bulk heterojunctions have an advantage over layered photoactive structures because they can be made thick enough for effective photon absorption without the difficult processing involved in orienting a layered structure while retaining similar level of performances.