Acta Phys. -Chim. Sin. ›› 1994, Vol. 10 ›› Issue (11): 1040-1044.doi: 10.3866/PKU.WHXB19941115

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Cathodoluminescence Images of Met.(Cu,Ag)-TCNQ Anion Radical Salts Organic Thin Films

Gu Ning, Shen Hao-Ying, Lu Wu, Wei Yu   

  1. Southeast University,Laboratory of Chien Shiung Wu,Nanjing 210018|Nanjing Institute of Electronic Devices,Nanjing 210016
  • Received:1993-08-09 Revised:1993-11-01 Published:1994-11-15
  • Contact: Gu Ning

Abstract:

We present here the first observation of cathodoluminescence (CL) images of Met. (Cu, Ag)-TCNQ anion radical salts organic thin films which were prepared in saturated TCNQ/CH3CN liquid-phase by self-growth. The experiments were carried out by means of Hitachi S-450 type scanning electron microscopy(SEM). Comparsion of CL images with secondary electron(SE) images of the same point on the organic thin film indicates that the shape of Met.(Cu, Ag)-TCNQ in CL images corresponds very well to that in the SE images. The results observed also shows that the CL intensity of CuTCNQ is stronger than that of AgTCNQ under the same experimental conditions. Based on the above results, a brief discussion about the preliminary mechanism of CL from Met.(Cu,Ag)-TCNQ has been given.

Key words: Cathodoluminescence(CL) image, Secondary electron(SE) image, Scanning electron microscopy(SEM), Met.(Cu、Ag)TCNQ anion radical salts, Organic thin films