Solar Cells

A dye-sensitized solar cell (DSSC) is a low-cost solar cell belonging to the group of thin film solar cells. It is based on a semiconductor formed between a photo-sensitized anode and an electrolyte, a photoelectrochemical system. The modern version of a dye solar cell, also known as the Grätzel cell, was originally co-invented in 1988 by Brian O'Regan and Michael Grätzel

Dye-Sensitized Solar Cell

Sensitizer

Panchromatic dye
High electron injection
Cheep
Excellent chemical stability

Dye(N719)

Working electrode

High surface area
Large pore size
Efficient electron transfer

Counter electrode

Cost-Effective
Excellent catalytic activity
Excellent chemical stability
High electrical conductivity

Electrolyte

High ionic conductivity
Excellent dye regeneration capacity
Suitable energy band position
Good stability

Spatial arrangements of CNTs in the TiO2 layer
The decay of Voc was significantly minimized, while maintained the superiol electron collection efficiency

Electrochemical catalytic behaviol of different redox couples at various doped(e.g. N, X and metals) and functionalized (e.g. -COOH) graphene modified electrode

Graphene modified electrodes for the counter electrode in DSSCs

Enhanced the Jsc without sacrificing the Voc
Improved charge transport and charge collection efficiency

Interhalogen based binary-redox couples for high-voltage DSSCs

The interhalogeb ion(I2Br-) was formed an extra redox pair, at more positive potential than that of I-/I3-)

Voc increased significantly without affecting the short circuit current much

Novel energy relay dyes(EDSs) for the development of high efficiency DSSCs based on Forster Resonance energy transfer(FRET)

Jsc increased significantly

Localized surface plasmon resonance(LSPR) effect of metal nano particles for the efficiency enhancement in DSSCs

LSPR could enhance the overall photoconversion efficiency significantly

QDSSCs have been considered to be a promising type of third-generation solar cells
Metal sulfide(e.g. CdS, PdS, ZnS etc.) based photoelectrodes by SILAR, spin coating, and electrodeposition for QDSSCs

Metal-sulfides based counter electrode for QDSSCs

Quantum Dot Sensitized Solar Cells

Perovskite Solar Cells

Perovskite solar cells based on organometal halide light absorbers have been considered a promising photovoltaic technology due to their superb power conversion efficiency (PCE) along with very low material costs
Low-cost counter electrode materials based on mesoporous carbon for PSCs

P-type semiconductors for the development of high efficiency PSCs

Efficient sensitization based solar cells including dye-sensitized solar cells (DSSCs), quantum dots-sensitized solar cells (QDSSCs), perovskite-sensitized solar cells (PSCs) by exploring new novel energy materials and materials engineering

Flexible Solar Cells

Highly viscous low temperature TiO2 paste for Flexible solar cells

Binary liquid-liquid mixture

Excellent adhesion capacity on TCO