Photoinduced conductivity and damage threshold of copper organoacetylenides illuminated with neodymium laser radiation

An investigation was made of the photoconductivity induced in metallo-organic semiconductors (copper organoacetylenides) by neodymium laser radiation and the damage thresholds of these compounds were determined. These thresholds increased monotonically with increasing forbidden band width and an induced photoconductivity from local levels in the forbidden band of copper phenylacetylenide appeared at energies which were three orders of magnitude lower than the damage threshold.