The practice of this disclosure obtains a relatively high efficiency operation for a crystalline semiconductor solar cell containing various defects of the linear and planar types. Linear defects include screw dislocations as well as full and partial dislocations. Planar defects include twins, stacking...http://www.google.com/patents/US4155785?utm_source=gb-gplus-sharePatent US4155785 - Process of making a radiation responsive device