The Emissive Mechanism of C545T Thin Layer at the Exciplex and Non-Exciplex Interfaces

Yuan ZHAO; Zhao-yue LÜ; Jian DENG; Guo-qing ZENG

doi:10.3964/j.issn.1000-0593(2020)12-3711-05

Journals >Spectroscopy and Spectral Analysis >Volume 40 >Issue 12 >Page 3711 > Article

Spectroscopy and Spectral Analysis
Vol. 40, Issue 12, 3711 (2020)

The Emissive Mechanism of C545T Thin Layer at the Exciplex and Non-Exciplex Interfaces

Yuan ZHAO, Zhao-yue LÜ, Jian DENG, and Guo-qing ZENG

Author Affiliations

Department of Physics, East China University of Science and Technology, Shanghai 200237, China

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DOI: 10.3964/j.issn.1000-0593(2020)12-3711-05 Cite this Article

Yuan ZHAO, Zhao-yue LÜ, Jian DENG, Guo-qing ZENG. The Emissive Mechanism of C545T Thin Layer at the Exciplex and Non-Exciplex Interfaces[J]. Spectroscopy and Spectral Analysis, 2020, 40(12): 3711 Copy Citation Text

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The diagram of energy level in the devicesAnode: ITO/MoO3; Cathode: LiF/Al

Fig. 1. The diagram of energy level in the devices
Anode: ITO/MoO₃; Cathode: LiF/Al

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Fig. 2. PL (spectra) of 3DTAPBP, TPBi and 3DTAPBP/TPBi films

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Fig. 3. PL spectra of CBP, TPBi and CBP/TPBi films

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Fig. 4. Luminance & current density (CD)-voltage curves of the devices based on 3DTAPBP/TPBi exciplex. Inset: current efficiency-current density plots

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Fig. 5. EL (spectra) of exciplex-based-devices with various thicknesses of C545T and PL spectrum of 10 nm C545T

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Fig. 6. Luminance & current density (CD)-voltage curves of CBP/TPBi non-exciplex-based devices. Inset: current efficiency-current density plots

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Fig. 7. Excitation spectrum of C545T film and PL spectra of 3DTAPBP/TPBi and CBP/TPBi films

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Fig. 8. The process of energy transfer (a) and direct charge trapping (b)

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简称	全称
m-MTDATA	4,4’,4”-tri[3-methylphenyl(phenyl) ami-no]triphenylamine
3TPYMB	tris-[3-(3-pyridyl)mesityl] borane
Ir(ppy)₂acac	Bis(2-phenylpyridine)iridium (Ⅲ) acetylacetonate
FIrpic	Bis (3,5-difluoro-2-(2-pyridyl) phenyl-(2-carboxypyridyl) iridium (Ⅲ)
C545T	2,3,6,7-Tetrahydro-1,1,7,7,-tetramethyl-1H,5H,11H-10-(2-benzothiazolyl)quinolizino[9,9a,1gh] coumarin
DACT-Ⅱ	9-[4-(4,6-diphenyl-1,3,5-triazin-2-yl)phenyl]-N,N,N',N'-tetraphenyl-9H-carbazole-3,6-diamine
TCTA	4,4’,4”-tris (N-carbazolyl)-triphenylamine
B3PYMPM	4,6-Bis(3,5-di-3-pyridylphenyl)-2-methylpyrimidine
3DTAPBP	2,2’-Bis(3-(N,N-di-p-tolylamino) phenyl) biphenyl
CBP	4,4’-bis(N-carbazolyl)-2,2’-biphenyl
TPBi	1,3,5-tris(1-phenyl-1H-benzimidazol-2-yl) benzene

Table 1. The names of organic materials described in the text

Yuan ZHAO, Zhao-yue LÜ, Jian DENG, Guo-qing ZENG. The Emissive Mechanism of C545T Thin Layer at the Exciplex and Non-Exciplex Interfaces[J]. Spectroscopy and Spectral Analysis, 2020, 40(12): 3711

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