Fig. 4

a Efficiency limits of SSPVT, ST and standalone PV, and b relative improvement of SSPVT compared to ST and PV as a function of w for different C = 100, 210, 1000, 45,000.

a Efficiency limits of SSPVT, ST and standalone PV, and b relative improvement of SSPVT compared to ST and PV as a function of w for different C = 100, 210, 1000, 45,000.