In a recent breakthrough, Sharp has developed a three-layer solar cell that has achieved the world's highest conversion efficiency. This advanced design, known as the "Compound 3-Junction" solar cell, utilizes multiple light-absorbing layers to enhance performance. By carefully adjusting the composition of the bottom layer, Sharp has improved the cell’s ability to capture sunlight across a broader spectrum, significantly boosting its efficiency.
The achievement was verified by AIST (Japan Institute of Industrial Technology), one of the leading global institutions for solar cell testing. According to their findings, the cell achieves an impressive efficiency of 37.9% on a 1 cm² area. This marks a major milestone in photovoltaic technology and sets a new benchmark for non-concentrating solar cells at the laboratory level.
This is not the first time Sharp has made progress in this field. In 2009, the same type of solar cell reached 35.8%, followed by 36.9% in 2011 and 37.7% in 2012. The latest result, however, represents a significant leap forward, showcasing continuous innovation and refinement in the company’s research.
The Compound 3-Junction solar cell features a multi-layer structure composed of compound materials such as indium, gallium, and arsenic. Specifically, the bottom layer uses indium gallium arsenide, while the middle layer is made of gallium arsenide and the top layer of indium gallium phosphate. This layered approach allows for more efficient absorption of different wavelengths of sunlight, maximizing energy conversion.
Developed under Japan’s NEDO (New Energy and Industrial Technology Development Organization) initiative, this technology aims to push the boundaries of photovoltaic efficiency. Sharp started researching three-junction solar cells back in 2000 with the goal of creating high-efficiency, lightweight, and durable solar panels suitable for space applications.
Looking ahead, Sharp plans to leverage these advancements to further improve practical applications and bring this cutting-edge technology into wider use. As renewable energy continues to grow in importance, innovations like this will play a crucial role in shaping the future of clean power.
Crane Sole Plate
Crane Sole Plate is used under crane rail. The primary function of soleplates is to provide rails with a flat and smooth resting surface. Soleplates are used to support the rails in situations where concrete is not strong enough to support crane rails. Depending on the load and the type of rail, soleplates can be made continuous or individual.
Technical Parameters of Crane Sole Plate
Material: Mild steel
Chemical composition %:
C: 0.14-0.22, Si:0.3 max; Mn:0.3-0.65; P:0.05 max; S: 0.05 Max
Mechanical properties:
Tensile strength Yield point Hardness Elongation Proof load
Bolt ≥375Mpa ≥235Mpa ≥120HB ≥23% -
Reference project of Crane Sole Plate
1. Indonesia
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