Electrical properties of hybrid phthalocyanines thin films using gold and lead electrodes

Electrical properties of hybrid phthalocyanines thin films using gold and lead electrodes
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使用金和铅电极的杂化酞菁薄膜的电性能

DOI:
10.1140/epjb/e2005-00352-7
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发表时间:
2005
期刊:
The European Physical Journal B - Condensed Matter and Complex Systems
影响因子:
--
通讯作者:
C. S. Menon
C. S. Menon
中科院分区:
--
文献类型:
--
作者:
A. Varghese;C. S. Menon

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研究了酞菁铜(CuPc)和酞菁镍(NiPc)混合薄膜金电极和铅电极器件的电学性能。在室温下,通过热蒸发技术将两种酞菁共蒸发并沉积在预清洁的玻璃基底上。通过共升华技术制备了完整的酞菁样品。在低电压下,薄膜表现出欧姆导电,而在较高的电压水平的导电机制占主导地位的空间电荷限制导电(SCLC)。在SCLC区,空穴迁移率μ= 3.1×10- 8 m2 V-1 s-1,比混合酞菁低,而陷阱浓度Nt(e)= 8.06 × 1025 m-3有所增加。此外,还研究了反向传导机制。从反向条件下的电流限制来看,明显存在强整流行为。
The electrical properties of mixed copper phthalocyanine (CuPc) and nickel phthalocyanine (NiPc) thin films devices with gold and lead electrodes have been investigated. The two phthalocyanines were co-evaporated and deposited on to a pre-cleaned glass substrate by thermal evaporation technique at room temperature. By the co-sublimation technique an integrated phthalocyanine sample was prepared. At low voltages the film showed an ohmic conduction whereas at higher voltage levels the conduction mechanisms were dominated by space charged limited conduction (SCLC). The value of mobility of holes were calculated as μ= 3.1×10-8m2V-1s-1which is lower for the mixed phthalocyanines whereas the trap concentrations Nt(e)= 8.06 ×1025m-3have increased in the SCLC region. Further the reverse conduction mechanisms have also been investigated. From the current limitations in the reverse condition a strong rectifying behaviour was evident.
DOI: --
发表时间: 2008
期刊: Ohmu-sba. 2nd Edition
影响因子: --
作者:
S. Shimomura;R. Kimpara
通讯作者: R. Kimpara