Citation: . HETEROJUNCTION DIODES OF POROUS SILICON WITH SOLUBLE POLYANILINE*[J]. Chinese Journal of Polymer Science, ;1999, 17(4): 329-335. shu

HETEROJUNCTION DIODES OF POROUS SILICON WITH SOLUBLE POLYANILINE*

Received Date: 20 March 1998

Two kinds of heterojunction diodes of porous silicon (PS) with soluble polyaniline (PANI) werefabricated. One is a heterojunction diode of PS with water-soluble copolymer of polyaniline (PAOABSA),Al/PS-PAOABSA/Au cell as rectifying diode. Another is a heterojunction diode of PS with solublepolyaniline doped with DBSA, Al/PS-PANI (DBSA)/Au cell as light emitting diode (LED). The rectifyingcharacteristics of the rectifying diodes were measured as a function of the degree of sulfonation and thickness of the copolymers,as well as oxidation of PS.The rectifying ratio of the heterojunction can reach 5.0×104 at ± 3 V bias.For the LED,the photoluminescence(PL) and electroluminescence(EL) spectra were measured and discussed.
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