A diamond-like carbon-containing material useful as a coating for electronic devices including field emission devices and color television tubes, the coatings having both low secondary electron emission coefficients of less than unity and electrical resistivity tunable over a range of from about 10 e.sup.-2...http://www.google.de/patents/US6013980?utm_source=gb-gplus-sharePatent US6013980 - Electrically tunable low secondary electron emission diamond-like coatings and process for depositing coatings