In order to ensure the performance and quality of perovskite solar cells, solar cell manufacturers often pay attention to various parameter information of their deposited films, so as to adopt effective methods to optimize the films and improve the performance of perovskite solar cells. Stylus Profiler owned by "Millennial Solar" relies on its excellent and powerful data processing functions and uses multi-point automatic measurement at different locations to confirm a series of parameter information such as the height and film stress of various types of films such as ITO films. Through the feedback of these parameter information, it can better help solar cell manufacturers improve solar cell performance!

Millennial Stylus Profiler 

E-mail: market@millennialsolar.cn

Millennial Stylus Profiler is an advanced micro-nano measurement instrument that adopts excellent instrument system structure and optimized measurement and data processing software to achieve reliable, efficient, simple and complete sample measurement. Compared with traditional surface topography measurement, the contact surface topography measurement adopted by Millennial Stylus Profiler is a breakthrough development. The minimum contact force can reach 1mg, and there are no special requirements for the substrate material, allowing flexible sampling.

●Equipped with 5 million pixel high-resolution color camera

●Step height repeatability 1nm

●Ultra-high straightness guide rail, reflecting the micro-morphology of the sample

●Sub-angstrom resolution, up to 0.01 angstrom in 13μm range

●High and low noise ratio and low linear error

Film Roughness, Waviness - Efficient Measurement

In terms of measuring deposited films of perovskite solar cells, Millennial Stylus Profiler can quantify the roughness and waviness of the film through 2D/3D texture, and use software filtering in excellent data processing software to separate the measured values into roughness and waviness, thereby calculating more than 20 roughness parameters such as root mean square (RMS) roughness.

Schematic diagram of film roughness

Unlike traditional film measurement methods, Millennial Stylus Profiler can measure the 2D/3D shape or warpage of the film surface, including measurement of wafer warpage. Through targeted measurement of these angles, real-time data is generated in computer software to provide solar cell manufacturers with clear and objective accurate measurement results.

Thin Film Stress - Precisely Calculated for Samples

Since in the industrial production process, thin film stress often occurs in the thin film deposition process of solar cells, thin film stress refers to the stress component uniformly distributed along the cross-sectional thickness, which is equal to the average stress along the cross-sectional thickness considered,Film stress will have a greater impact on the mechanical properties of the film.In severe cases, the film will be deformed, which greatly affects the measurement efficiency and measurement results.

Schematic diagram of shape change of thin film deposition

In order to conduct an in-depth analysis of the specific conditions of film stress, "Millennial Solar" relied on its rich testing experience to produce Stylus Profiler with a new probe-type surface profile measurement technology. This equipment can measure multiple process layers in industrial production. Thin film stress in perovskite solar cells after film deposition, and sample warpage was accurately measured using a stress chuck sample support in a neutral position. The stress is then calculated by applying Stoney's equation, using shape changes such as those caused by thin film deposition processes.

"Millennial Solar" has won high praise from the majority of photovoltaic companies with its unique detection technology and efficient quality services in the photovoltaic detection industry! In terms of the thin film deposition production process of perovskite solar cells, "Millennial Solar" has produced Stylus Profiler that can detect thin film performance in industrial production and obtain various thin film parameter information. In the future, "Millennial Solar" will continue to produce high-quality testing equipment for photovoltaic companies to help achieve the ambitious goal of "carbon neutrality" as soon as possible!