TITLE

Single-crystal-like organic heterojunction with 40 nm thick charge accumulation layers

AUTHOR(S)
Zhu, Feng; Yang, Jianbing; Song, De; Li, Chunhong; Yan, Donghang
PUB. DATE
April 2009
SOURCE
Applied Physics Letters;4/6/2009, Vol. 94 Issue 14, p143305
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Single-crystal-like organic heterojunction films of copper phthalocyanine (CuPc) and copper-hexadecafluoro-phthalocyanine (F16CuPc) were fabricated by weak-epitaxy-growth method. The intrinsic properties of organic heterojunction were revealed through threshold voltage shift of field-effect transistors and measurement of single-crystal-like diodes. At both sides of the heterojunction interface 40 nm thick charge accumulation layers formed, which showed that the long carriers’ diffusion length is due to the high crystallinity and low density of deep bulk traps of single-crystal-like films. This also indicated the electronic properties of organic heterojunction can be adjusted by controlling the growth condition.
ACCESSION #
37580294

 

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