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Development of Pyrite Solar Cell

3 Innovative Features of Pyrite Solar Cells

Features of QD Japan-developed Technology

Silicon(Main Current)Perovskite
(Other Research)
CROAS_Pyrite(Our Development)
Material Accessibility◯ Rare metal-free◯ Rare metal-free◎ Iron, sulfur (available worldwide)
Material Environmental Impact▲ Lead  (frame)▲ Lead◯ Lead, cadmium and rare metal free
Ease of Manufacturing▲ required at high temperature◯ acceptable at normal temperatures◎ Aqueous solution at 60°C, under normal pressure
Production cost▲ High cost of equipment and power◯ 1/5 the cost of silicon◎ Less than 1/8 of the cost of silicon
Durability▲ Insensitive to oxygen and moisture◯ Resistant to oxygen and moisture
Installation Difficulty▲ Heavy and limited installation locations◯ Lightweight thin film for high versatility◯ High versatility due to lightweight thin film
Power Generation Efficiency▲ Theoretical 29%/Actual 14-20%.▲ no match for silicon◎ Theoretical 60% Actual 40% (2x)
Inventor(s)1954 Bell Laboratories Inc.Prof. Tsutomu Miyasaka, Toin University of YokohamaEmeritus Prof. Yutaka Tamaura, TIT
Development CompanyCurrently about 95% market shareToshiba and others.
Performance improvement by 25 years
Our proprietary technology.
To be manufactured and sold after 2025
Comprehensive Evaluation▲ Low efficiency, high environmental impactet share◯ Medium efficiency, high environmental impact◎ High Efficiency, Low Environmental Impact, Low Cost

Low-temperature fabrication of ferrite thin films
=Original ferrite plating method=

Ferrite plating is an innovative technology that enables the direct fabrication of ferromagnetic ferrite films in an aqueous solution at room temperature to 90°C.

Characteristics of ferrite plating

Mass Production is Possible by Roll-to-roll

Capable of producing with roll-to-roll technology,high-speed and stable manufacturing is possible

  • 1 square meter = 200w is the initial product standard
  • Annual =Planning to manufacture 100Mw power panels
  • Investment of approx. 500 million yen per line

Image of QD Japan-developed “Solar Cell” Installation

Utilization on walls, rooftops, and roofs (lightweight, installed anywhere)

Rehabilitation of existing solar power plants that have deteriorated over time

Utilization for interior window