Solar cell is a kind of photoelectric semiconductor sheet that converts solar energy into electrical energy by using the photovoltaic effect. During the decades of development of solar cells, the types have been greatly enriched. Among them, perovskite (CaTiO3) has attracted extensive attention from the global academic and industrial circles. The Stylus Profiler developed by "Millennial Solar" provides users with accurate film thickness through multi-point automatic measurement of different positions on the surface of the perovskite solar cell film.

Why choose perovskite?

Perovskite solar cells are the third generation of new solar cells and the most potential and disruptive new generation of photovoltaic technology. Among them, the perovskite material ABX3 is an organometallic halide, which has very excellent photoelectric properties, and has the advantages of high energy conversion efficiency, low material cost, and broad application prospects.

Efficient Energy Conversion

For quite a long time in the past, crystalline silicon photovoltaic cells were an excellent combination of cost and efficiency. Concomitantly, there are limitations in the efficiency of converting natural minerals into solar energy. The theoretical limit value of 29.43% becomes the barrier of crystalline silicon material.

In contrast, the growth prospects of perovskite are very bright. Today, the laboratory efficiency of perovskite solar cells has reached 25.7%, which has been achieved by the development of crystalline silicon for more than 60 years. Moreover, the theoretical efficiency of single-layer perovskite solar cell reaches 33%, and that of a double-layer can reach more than 45%, which has a higher room for improvement than crystalline silicon.

Progress of cell efficiency in single crystal and multicrystalline Si cells, perovskite solar cells, perovskite/Si tandem according to Best Research-Cell Efficiency chart from National Renewable Energy Laboratory (NREL, 2020).

The development speed of perovskite benefits from the light-absorbing properties of perovskite materials. The light-absorbing properties of perovskite materials are much stronger than those of crystalline silicon, and they have extremely low energy loss during energy conversion.

Low Cost and Short Process Flow

The raw materials of perovskite solar cells are artificially synthesized, and they are all basic chemical materials. They do not contain rare elements and are much cheaper than crystalline silicon materials.

The preparation process of perovskite is short. From the preparation of raw materials to the whole process of entering component molding, the entire industrial chain can be highly concentrated in a 100-megawatt factory, and the time is controlled within 45 minutes.

Perovskite materials are less sensitive to impurities, and the purity requirements for raw materials are lower than those of crystalline silicon, so they can be prepared at low temperatures. Moreover, the temperature of the perovskite production process does not exceed 150 degrees, which can save resources and reduce energy consumption to reduce production costs and speed up production.

Far-reaching and Broad Market Prospects

Perovskite solar cells meet the market needs of long-term power generation, light transmittance and aesthetics by virtue of low-light performance and customizable colors, and they also have extensive market space in other fields outside the photovoltaic industry.

Millennial Stylus Profiler is an advanced micro-nano measuring instrument. It adopts excellent instrument system structure and optimized measurement and data processing software, which can realize reliable, efficient and simple sample detection. It can also be used in a wide range of fields. Products in semiconductors, photovoltaics, LEDs, MEMS devices, materials, and other fields provide nanoscale surface measurements.

Millennial Stylus Profiler

E-mail: market@millennialsolar.cn

SP200 Stylus Profiler is an advanced micro-nano measuring instrument. It adopts excellent instrument system structure and optimized measurement and data processing software to measure surface roughness, waviness, surface 2D/3D shape, warpage and stress. So as to realize reliable, efficient and simple sample detection, and complete the perfect control from research and development to quality control.

In the context of the "carbon neutral" strategy, perovskite solar cells have received unanimous praise from many photovoltaic users for their unique advantages. "Millennial Solar" will focus on photovoltaic enterprise users from beginning to end, continue to create huge value for photovoltaic enterprise users and the photovoltaic industry, and jointly promote the stable development of the photovoltaic industry!