Fig. (IMAGE) Osaka University Caption (a) Multiple subband in triangular quantumwell (TQW), (b) Single subband in rectangular quantum well (RQW), and (c) the experimental thermoelectric power factor enhancement rate relative to the theoretical one of conventional 2DEG (PF2D/3D)ex/(PF2D/3D)th. The unit value indicates the thermoelectric power factor enhancement of the conventional 2DEG Credit Yoshiaki Nakamura Usage Restrictions No restrictions 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.