Figure 1From: Negative differential resistance and carrier transport of electrically bistable devices based on poly(N-vinylcarbazole)-silver sulfide compositesTEM image and XRD patterns and standard diffraction lines of Ag 2 S. TEM image of resultant Ag2S nanocrystals (a) and XRD patterns of Ag2S nanocrystals and standard diffraction lines of monoclinic Ag2S (b).Back to article page