Heterojunction technology is technology which binds together plural kinds of semiconductors having different material properties such as combining crystalline silicon with amorphous silicon to reduce defects which lower conversion efficiency or combining materials which convert the light energy of different wavelength ranges into electricity to obtain a higher conversion efficiency.

A crystalline silicon solar cell which incorporates heterojunction technology and back-contact technology.

Achieved through collaborative research with NEDO.

Published on Septemjointly with New Energy and Industrial Technology Development Organization (hereinafter referred to as “NEDO”).

As of August 21, 2017, for non-concentration type crystalline silicon solar cells.

Heterojunction back-contact crystalline silicon solar cell We will also advance development for practical use of high-efficiency solar cell products that utilize this result focusing on providing effective solutions to net zero energy housing (ZEH) and net zero energy building (ZEB). We will continue to develop solar cell technology for improving the conversion efficiency, reducing the manufacturing costs and improving the reliability. These results have also been published at.

This result has been achieved*3 with a heterojunction back-contact crystalline silicon solar cell*4 which we have been developing and it was published in Nature Energy*5 Furthermore, this result was published in June as the world’s highest value in “Solar cell efficiency tables (Version 50)*6” which lists the records of conversion efficiencies for various kinds of solar cells, together with the world’s highest conversion efficiency of 24.37%*7 in a crystalline silicon solar cell module which we achieved last year.

Kaneka Corporation (Head office: Osaka President: Mamoru Kadokura) has achieved the world’s highest*1 conversion efficiency of 26.63% in a practical size (180 cm2) crystalline silicon solar cell, breaking the record we achieved last year (26.33%)*2 by 0.3%.

Solarcell corp