What is the Superstrate of a solar cell made of?
glass substrate
The discussion on CdTe solar cells in superstrate configuration is divided in five parts: glass substrate, front contact, buffer layer, absorber, and back contact as shown in Fig. 4.
What is superstrate configuration?
The term superstrate refers to a solar cell configuration where the glass substrate is not only used as supporting structure but also as window for the illumination and as part of the encapsulation. During operation the glass is “above” the actual solar cell. Thus the name “Super”strate.
How does a CIGS solar cell work?
CIGS solar cell, in full copper indium gallium selenide solar cell, thin-film photovoltaic device that uses semiconductor layers of copper indium gallium selenide (CIGS) to absorb sunlight and convert it into electricity.
How efficient are CIGS solar panels?
Copper indium gallium selenide (CIGS) based solar cells are receiving worldwide attention for solar power generation. They are efficient thin film solar cells that have achieved 22.8% efficiency comparable to crystalline silicon (c-Si) wafer based solar cells.
What is the role of mesoporous tio2 in Dssc?
This mesoporous structure could facilitate mass transport and diffusion of the electrolyte in DSSC.
What is substrate configuration?
1 The Substrates. CIGSSe devices are usually grown in what is known as substrate configuration, which means that the substrate remains the first step in the fabrication process, but the back layer to illumination.
What is the difference between superstrate and substrate?
A substratum or substrate is a language that has lower power or prestige than another, while a superstratum or superstrate is the language that has higher power or prestige. Both substratum and superstratum languages influence each other, but in different ways.
What are the advantages of CIGS solar cells?
The benefits of CIGS solar cells include: High absorption: This direct-bandgap material can absorb a significant portion of the solar spectrum, enabling it to achieve the highest efficiency of any thin-film technology. Tandem design: A tunable bandgap allows the possibility of tandem CIGS devices.
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.
Which type of solar cells are currently the most efficient?
Monocrystalline solar panels are known to deliver the highest efficiency in standard test conditions when compared to the other 2 types of solar cells. The current delivered monocrystalline solar panel efficiency stands at 22-27%.
What electrolyte is used in DSSC?
In addition, using a solvent-free ionic liquid (imidazolium salts) electrolyte, (137) the lifetime of the DSSC for outdoor use was estimated at over 15 years. The acid–base (or donor–acceptor) interaction between solvents and other components is an important factor affecting the photovoltaic performance of DSSCs.
Which of the following materials can be used as solar cells materials?
Silicon is the most widely used material for solar cells due to its abundance in the earth’s crust.