Thin Film Solar (CIGS) vs. Monocrystalline Solar: Differences and Prospects

Thin Film Solar (CIGS) vs. Monocrystalline Solar: Differences and Prospects


I. Thin Film Solar (CIGS)

1. Manufacturing process

Thin-film solar (CIGS) is a photovoltaic technology that utilizes thin films made of copper, indium, gallium, selenium and other 

elements as absorber materials. The first step in manufacturing CIGS thin-film solar cells is to prepare a CIGS absorber layer, usu-

ally by vacuum evaporation or sputtering. Next, a transparent conductive film and back electrode are added to the absorber layer 

to form a complete solar cell. This manufacturing process has the advantages of high production efficiency and low cost.

Solar CIGS

2. Performance Characteristics

CIGS thin film solar cells have high photoelectric conversion efficiency and good low light performance. In addition, the CIGS mat-

erial system is flexible and adjustable, and the performance can be optimized by changing the elemental ratios. However, CIGS thin-

film solar cells have a shorter lifespan, are more expensive than commercially available products, and have the risk of environmental 

pollution, which are their main shortcomings.

thin film solar panel

3. Application Areas

Because CIGS thin-film solar cells are thin, lightweight and bendable, they are suitable for the manufacture of solar modules for wear-

able devices, automobiles and buildings. In addition, CIGS technology can also be used to manufacture concentrated photovoltaic sys-

tems to improve photoelectric conversion efficiency.

II. Monocrystalline Silicon Solar

1.Manufacturing process

Monocrystalline silicon solar cells are solar cells made from high-purity monocrystalline silicon. The steps for manufacturing monocry-

stalline silicon solar cells include cutting, polishing, etching and coating. First, high-purity monocrystalline silicon rods are cut into wafers 

of a certain size, then polished and etched to remove surface defects and impurities. Finally, the wafers are coated to increase conductivity 

and light transmission to form complete solar cells

Monocrystalline Solar

2.Performance Characteristics

Monocrystalline silicon solar cells have high photoelectric conversion efficiency and long life. Compared with CIGS thin-film solar cells, 

monocrystalline silicon solar cells have better stability and are suitable for a variety of harsh environments. In addition, monocrystalline 

silicon material system is mature and easy to prepare, so it has a certain advantage in terms of production cost. However, the manufact-

uring process of monocrystalline silicon solar cells produces a large amount of waste and pollution, which is its main shortcoming.

3. Application areas

Monocrystalline silicon solar cells are widely used in photovoltaic power plants, large-scale photovoltaic power plants and rooftop photo-

voltaics. Due to its high photoelectric conversion efficiency and long life, monocrystalline silicon solar cells have become one of the mains-

tream technologies in the photovoltaic industry. In addition, monocrystalline silicon solar cells can also be used to manufacture various sha-

pes and sizes of photovoltaic modules to meet the needs of different application scenarios.

Solar CIGS

III. Development prospects

In the future development, the two technologies will compete with each other and learn from each other to achieve higher photoelectric 

conversion efficiency and lower cost.

thin film solar panel

 Now on the market has appeared a lot of flexible solar panels made of monocrystalline silicon, the degree of bending has been 

comparable to CIGS, I believe that the use of monocrystalline silicon solar panels in the future will be more and more ahead of 

the curve.

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