Figure 1 (IMAGE) Nagoya University Caption Using plasma, scientists built gallium nitride semiconductors at a lower cost and with higher quality, which allows fast and more efficient device charging. Credit Reiko Matsushita Usage Restrictions Credit must be given where image is used 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.