TY - JOUR PB - American Physical Society ID - 10.1103/Physics.4.108 TI - Nanotube Bundles Show Promise for Solar Cells JF - Physics JA - Physics J1 - PHYSICS VL - 4 IS - SP - 108 EP - PY - 2011/12/16/ UR - http://link.aps.org/doi/10.1103/Physics.4.108 A1 - Wofsey, Michael ER -