Structural, optical and electrical properties of europium picrate tetraethylene glycol complex as emissive material for OLED

Eny Kusrini; Muhammad I. Saleh; Rohana Adnan; Yoki Yulizar; Ng Sha Shiong; H. K. Fun; M. A. Adhha Abdullah; Mazidah Mamat; N. K. Za'Aba; W. H. Abd. Majid

doi:10.1016/j.jlumin.2011.07.013

Structural, optical and electrical properties of europium picrate tetraethylene glycol complex as emissive material for OLED

Eny Kusrini, Muhammad I. Saleh, Rohana Adnan, Yoki Yulizar, Ng Sha Shiong, H. K. Fun, M. A. Adhha Abdullah, Mazidah Mamat, N. K. Za'Aba, W. H. Abd. Majid

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

A new europium complex [Eu(Pic)₂(H₂O)(EO4)](Pic) ·0.75H₂O was synthesized and used as the emission material for the single layer device structure of ITO/EO4EuPic/Al, using a spin-coating technique. Study on the optical properties of the [Eu(Pic)₂(H ₂O)(EO4)](Pic)·0.75H₂O complex where EO4=tetraethylene glycol and Pic=picrate anion, had to be undertaken before being applicable to the study of an organic light emitting diode (OLED). The electrical property of an OLED using currentvoltage (IV) measurement was also studied. In complex, the Eu(III) ion was coordinated with the EO4 ligand as a pentadentate mode, one water molecule, and with two Pic anions as bidentate and monodentate modes, forming a nine-coordination number. The photoluminescence (PL) spectra of the crystalline complex in the solid state and its thin film showed a hypersensitive peak at 613.5614.9 nm that assigned to the ⁵D₀→⁷F₂ transition. A narrow band emission from the thin film EO4EuPic was obtained. The typical semiconductor IV curve of device ITO/EO4EuPic/Al showed the threshold and turn on voltages at 1.08 and 4.6 V, respectively. The energy transfer process from the ligand to the Eu(III) ion was discussed by investigating the excitation and PL characteristics. Effect of the picrate anion on the device performance was also studied.

Original language	English
Pages (from-to)	91-99
Number of pages	9
Journal	Journal of Luminescence
Volume	132
Issue number	1
DOIs	https://doi.org/10.1016/j.jlumin.2011.07.013
Publication status	Published - Jan 2012

Keywords

Europium
OLED
Photoluminescence
Picrate complex
Thin film

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@article{2148ce99ef90447eb9eaf076de5c3524,

title = "Structural, optical and electrical properties of europium picrate tetraethylene glycol complex as emissive material for OLED",

abstract = "A new europium complex [Eu(Pic)2(H2O)(EO4)](Pic) ·0.75H2O was synthesized and used as the emission material for the single layer device structure of ITO/EO4EuPic/Al, using a spin-coating technique. Study on the optical properties of the [Eu(Pic)2(H 2O)(EO4)](Pic)·0.75H2O complex where EO4=tetraethylene glycol and Pic=picrate anion, had to be undertaken before being applicable to the study of an organic light emitting diode (OLED). The electrical property of an OLED using currentvoltage (IV) measurement was also studied. In complex, the Eu(III) ion was coordinated with the EO4 ligand as a pentadentate mode, one water molecule, and with two Pic anions as bidentate and monodentate modes, forming a nine-coordination number. The photoluminescence (PL) spectra of the crystalline complex in the solid state and its thin film showed a hypersensitive peak at 613.5614.9 nm that assigned to the 5D0→7F2 transition. A narrow band emission from the thin film EO4EuPic was obtained. The typical semiconductor IV curve of device ITO/EO4EuPic/Al showed the threshold and turn on voltages at 1.08 and 4.6 V, respectively. The energy transfer process from the ligand to the Eu(III) ion was discussed by investigating the excitation and PL characteristics. Effect of the picrate anion on the device performance was also studied.",

keywords = "Europium, OLED, Photoluminescence, Picrate complex, Thin film",

author = "Eny Kusrini and Saleh, {Muhammad I.} and Rohana Adnan and Yoki Yulizar and {Sha Shiong}, Ng and Fun, {H. K.} and {Adhha Abdullah}, {M. A.} and Mazidah Mamat and Za'Aba, {N. K.} and {Abd. Majid}, {W. H.}",

note = "Funding Information: We wish to thank Universitas Indonesia, Ministry of National Education, Directorate General of Higher Education (DIKTI) and Universiti Sains Malaysia for their financial support through research grants RUUI bidang Unggulan No. 2589/H2.R12/PPM.00.01 Sumber Pendanaan/2010, Hibah Fundamental No. 167/SP2H/PL/Dit.Litabmas/IV/2011 , and FRGS No. 203/PKIMIA/671020 , respectively.",

year = "2012",

month = jan,

doi = "10.1016/j.jlumin.2011.07.013",

language = "English",

volume = "132",

pages = "91--99",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier B.V.",

number = "1",

}

TY - JOUR

T1 - Structural, optical and electrical properties of europium picrate tetraethylene glycol complex as emissive material for OLED

AU - Kusrini, Eny

AU - Saleh, Muhammad I.

AU - Adnan, Rohana

AU - Yulizar, Yoki

AU - Sha Shiong, Ng

AU - Fun, H. K.

AU - Adhha Abdullah, M. A.

AU - Mamat, Mazidah

AU - Za'Aba, N. K.

AU - Abd. Majid, W. H.

N1 - Funding Information: We wish to thank Universitas Indonesia, Ministry of National Education, Directorate General of Higher Education (DIKTI) and Universiti Sains Malaysia for their financial support through research grants RUUI bidang Unggulan No. 2589/H2.R12/PPM.00.01 Sumber Pendanaan/2010, Hibah Fundamental No. 167/SP2H/PL/Dit.Litabmas/IV/2011 , and FRGS No. 203/PKIMIA/671020 , respectively.

PY - 2012/1

Y1 - 2012/1

N2 - A new europium complex [Eu(Pic)2(H2O)(EO4)](Pic) ·0.75H2O was synthesized and used as the emission material for the single layer device structure of ITO/EO4EuPic/Al, using a spin-coating technique. Study on the optical properties of the [Eu(Pic)2(H 2O)(EO4)](Pic)·0.75H2O complex where EO4=tetraethylene glycol and Pic=picrate anion, had to be undertaken before being applicable to the study of an organic light emitting diode (OLED). The electrical property of an OLED using currentvoltage (IV) measurement was also studied. In complex, the Eu(III) ion was coordinated with the EO4 ligand as a pentadentate mode, one water molecule, and with two Pic anions as bidentate and monodentate modes, forming a nine-coordination number. The photoluminescence (PL) spectra of the crystalline complex in the solid state and its thin film showed a hypersensitive peak at 613.5614.9 nm that assigned to the 5D0→7F2 transition. A narrow band emission from the thin film EO4EuPic was obtained. The typical semiconductor IV curve of device ITO/EO4EuPic/Al showed the threshold and turn on voltages at 1.08 and 4.6 V, respectively. The energy transfer process from the ligand to the Eu(III) ion was discussed by investigating the excitation and PL characteristics. Effect of the picrate anion on the device performance was also studied.

AB - A new europium complex [Eu(Pic)2(H2O)(EO4)](Pic) ·0.75H2O was synthesized and used as the emission material for the single layer device structure of ITO/EO4EuPic/Al, using a spin-coating technique. Study on the optical properties of the [Eu(Pic)2(H 2O)(EO4)](Pic)·0.75H2O complex where EO4=tetraethylene glycol and Pic=picrate anion, had to be undertaken before being applicable to the study of an organic light emitting diode (OLED). The electrical property of an OLED using currentvoltage (IV) measurement was also studied. In complex, the Eu(III) ion was coordinated with the EO4 ligand as a pentadentate mode, one water molecule, and with two Pic anions as bidentate and monodentate modes, forming a nine-coordination number. The photoluminescence (PL) spectra of the crystalline complex in the solid state and its thin film showed a hypersensitive peak at 613.5614.9 nm that assigned to the 5D0→7F2 transition. A narrow band emission from the thin film EO4EuPic was obtained. The typical semiconductor IV curve of device ITO/EO4EuPic/Al showed the threshold and turn on voltages at 1.08 and 4.6 V, respectively. The energy transfer process from the ligand to the Eu(III) ion was discussed by investigating the excitation and PL characteristics. Effect of the picrate anion on the device performance was also studied.

KW - Europium

KW - OLED

KW - Photoluminescence

KW - Picrate complex

KW - Thin film

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U2 - 10.1016/j.jlumin.2011.07.013

DO - 10.1016/j.jlumin.2011.07.013

M3 - Article

AN - SCOPUS:80051629857

SN - 0022-2313

VL - 132

SP - 91

EP - 99

JO - Journal of Luminescence

JF - Journal of Luminescence

IS - 1

ER -

Structural, optical and electrical properties of europium picrate tetraethylene glycol complex as emissive material for OLED

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