TY - JOUR AU - Gauck, H AU - Gfroerer, T AU - Renn, M AU - Cornell, Eric AU - Bertness, K C2 - Applied Physics A-Materials Science & Processing DA - 1997-01-01 00:01:00 LA - en M1 - 64 PB - Applied Physics A-Materials Science & Processing PY - 1997 TI - External radiative quantum efficiency of 96% from a GaAs/GaInP heterostructure ER -