R&D Areas

Full-scale R&D

Development of novel organic semiconductors and challenge for 20% efficiency in organic solar cells

OSAKA Itaru

Project Leader

OSAKA Itaru

R&D Period
2025.4-
Grant Number
JPMJAN25G1 

Summary

Organic solar cells, also called organic photovoltaics (OPVs), based on organic semiconductors, which do not include toxic elements, in the photoactive layer are an important next-generation photovoltaic system with ultra-thinness, lightweight, and flexibility. OPVs also offer semi-transparency in contrast to the perovskite solar cells. Our team has succeeded in breaking through the current-voltage trade-off limit, a bottleneck in OPVs, by developing new materials and has obtained the world's highest level of power conversion efficiency.
In the full-scale R&D phase of the project, we will further develop novel organic semiconductors and simultaneously achieve high power conversion efficiencies of over 20% and high stability. We also aim to realize an efficiency of 15% in flexible OPV modules.
Our goal is to build fundamental technologies for efficient and stable OPV modules and to promote their practical application in widows and greenhouses where other solar cells cannot be used.


The flexible OPV module based on organic semiconductors developed in our feasibility study

R&D Team

Leading Institution

Graduate School of Advanced Science and Engineering, Hiroshima University

Collaborators

The University of Osaka, RIKEN, Kyoto University, Chiba University

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