TY - RPRT TI - Large-area high-efficiency ion-implanted cells and flat-plate modules AU - Spitzer, M. B. AU - Geoffroy, L. M. AU - Nowlan, M. J. AU - Drake, H. E. PY - 1985 UR - https://ntrs.nasa.gov/citations/19870032673 ID - 19870032673 ER -