ICCAS OpenIR
Trap-free space-charge-limited electron transport in amorphous tin(IV) phthalocyanine dichloride thin film
Qiao, Xianfeng; Chen, Jiangshan; Ma, Dongge
2010-06-02
Source PublicationJOURNAL OF PHYSICS D-APPLIED PHYSICS
ISSN0022-3727
Volume43Issue:21
AbstractThe morphology and electrical properties of thin films of an n-type organic semiconductor tin(IV) phthalocyanine dichloride (SnCl2Pc) are investigated. An investigation of atomic force microscopy and x-ray diffraction shows that the vacuum-deposited SnCl2Pc films on room-temperature glass substrates exhibit a homogeneous amorphous state. The temperature-dependent current-voltage characteristics of the electron-only devices show that the electron transport in SnCl2Pc thin films is bulk-limited, from the Ohmic region (J similar to V) at low voltages to the trap-free space-charge-limited current (TFSCLC) region (J similar to V-2) at high voltages. The linear dependence of current on voltage at low voltages yields the temperature-dependent conductivity, while the TFSCLC relationship provides a direct measurement of the free-electron mobility as a function of electric field and temperature. The zero-field electron mobility at 293K is as high as (1.8 +/- 0.3) x 10(-4) cm(2) V-1 s(-1). It can be seen that the obtained mobility and conductivity obey well the Gaussian disorder model and the three-dimensional variable range hopping model, respectively.
DOI10.1088/0022-3727/43/21/215402
Indexed BySCI
Language英语
WOS IDWOS:000277640900011
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69292
Collection中国科学院化学研究所
Corresponding AuthorMa, Dongge
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Grad Sch, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Qiao, Xianfeng,Chen, Jiangshan,Ma, Dongge. Trap-free space-charge-limited electron transport in amorphous tin(IV) phthalocyanine dichloride thin film[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2010,43(21).
APA Qiao, Xianfeng,Chen, Jiangshan,&Ma, Dongge.(2010).Trap-free space-charge-limited electron transport in amorphous tin(IV) phthalocyanine dichloride thin film.JOURNAL OF PHYSICS D-APPLIED PHYSICS,43(21).
MLA Qiao, Xianfeng,et al."Trap-free space-charge-limited electron transport in amorphous tin(IV) phthalocyanine dichloride thin film".JOURNAL OF PHYSICS D-APPLIED PHYSICS 43.21(2010).
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