Figure 1 (IMAGE) Tokyo Institute of Technology Caption Both Au and Cu7S4 exhibit localized surface plasmon resonance that can harvest photons from visible to NIR region. Credit Tokyo Tech and National Yang Ming Chiao Tung University Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.