Optical properties of oligo(9,9-diarylfluorene) derivatives in thin films and their application for organic light-emitting field-effect transistors

Takahito Oyamada; Chih Hao Chang; Teng Cmh Chao; Fu Chuan Fang; Chung Chih Wu; Ken Tsung Wong; Hiroyuki Sasabe; Chihaya Adachi

doi:10.1021/jp0654056

Optical properties of oligo(9,9-diarylfluorene) derivatives in thin films and their application for organic light-emitting field-effect transistors

Takahito Oyamada, Chih Hao Chang, Teng Cmh Chao, Fu Chuan Fang, Chung Chih Wu, Ken Tsung Wong, Hiroyuki Sasabe, Chihaya Adachi

Functional Materials Chemistry

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

50 Citations (Scopus)

Abstract

We Demonstrated That Oligo(9,9-diarylfluorene) Derivatives Have High Potential for Optoelectron. Applic. Such as Organ. Lasers and Light-emitting Organ. Fld.-effect Transistors (LE-OFETs). the Oligo(9,9-diarylfluorene) Derivatives Have High Photoluminescence Quant. Efficiencies up to Φ _PL ≈ 70-75% and very low amplified spontaneous emission thresholds (E_th) down to 0.5 μJ/cm² in their vacuum-deposited neat films. In particular, the trimer derivatives (B3 and T3) show higher Φ_PL and lower E_th than those of the dimers (B2 and T2). Efficient deep-blue LE-OFETs with the electroluminescence (EL) peaking at λ_peak - 429 nm were demonstrated using the ter(9,9-diarylfluorene) as the active layer. Rather high luminance up to L ≈ 150 cd/m² and EL quantum efficiency up to η_ext ≈ 0.60% were achieved with the optimum source-drain channel length, indicating bipolar carrier injection in the terfluorene layer under the FET operation.

Original language	English
Pages (from-to)	108-115
Number of pages	8
Journal	Journal of Physical Chemistry C
Volume	111
Issue number	1
DOIs	https://doi.org/10.1021/jp0654056
Publication status	Published - Jan 11 2007

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/jp0654056

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Optical properties of oligo(9,9-diarylfluorene) derivatives in thin films and their application for organic light-emitting field-effect transistors. / Oyamada, Takahito; Chang, Chih Hao; Chao, Teng Cmh; Fang, Fu Chuan; Wu, Chung Chih; Wong, Ken Tsung; Sasabe, Hiroyuki; Adachi, Chihaya.

In: Journal of Physical Chemistry C, Vol. 111, No. 1, 11.01.2007, p. 108-115.

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

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abstract = "We Demonstrated That Oligo(9,9-diarylfluorene) Derivatives Have High Potential for Optoelectron. Applic. Such as Organ. Lasers and Light-emitting Organ. Fld.-effect Transistors (LE-OFETs). the Oligo(9,9-diarylfluorene) Derivatives Have High Photoluminescence Quant. Efficiencies up to Φ PL ≈ 70-75% and very low amplified spontaneous emission thresholds (Eth) down to 0.5 μJ/cm2 in their vacuum-deposited neat films. In particular, the trimer derivatives (B3 and T3) show higher ΦPL and lower Eth than those of the dimers (B2 and T2). Efficient deep-blue LE-OFETs with the electroluminescence (EL) peaking at λpeak - 429 nm were demonstrated using the ter(9,9-diarylfluorene) as the active layer. Rather high luminance up to L ≈ 150 cd/m2 and EL quantum efficiency up to ηext ≈ 0.60% were achieved with the optimum source-drain channel length, indicating bipolar carrier injection in the terfluorene layer under the FET operation.",

author = "Takahito Oyamada and Chang, {Chih Hao} and Chao, {Teng Cmh} and Fang, {Fu Chuan} and Wu, {Chung Chih} and Wong, {Ken Tsung} and Hiroyuki Sasabe and Chihaya Adachi",

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AU - Oyamada, Takahito

AU - Chang, Chih Hao

AU - Chao, Teng Cmh

AU - Fang, Fu Chuan

AU - Wu, Chung Chih

AU - Wong, Ken Tsung

AU - Sasabe, Hiroyuki

AU - Adachi, Chihaya

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N2 - We Demonstrated That Oligo(9,9-diarylfluorene) Derivatives Have High Potential for Optoelectron. Applic. Such as Organ. Lasers and Light-emitting Organ. Fld.-effect Transistors (LE-OFETs). the Oligo(9,9-diarylfluorene) Derivatives Have High Photoluminescence Quant. Efficiencies up to Φ PL ≈ 70-75% and very low amplified spontaneous emission thresholds (Eth) down to 0.5 μJ/cm2 in their vacuum-deposited neat films. In particular, the trimer derivatives (B3 and T3) show higher ΦPL and lower Eth than those of the dimers (B2 and T2). Efficient deep-blue LE-OFETs with the electroluminescence (EL) peaking at λpeak - 429 nm were demonstrated using the ter(9,9-diarylfluorene) as the active layer. Rather high luminance up to L ≈ 150 cd/m2 and EL quantum efficiency up to ηext ≈ 0.60% were achieved with the optimum source-drain channel length, indicating bipolar carrier injection in the terfluorene layer under the FET operation.

AB - We Demonstrated That Oligo(9,9-diarylfluorene) Derivatives Have High Potential for Optoelectron. Applic. Such as Organ. Lasers and Light-emitting Organ. Fld.-effect Transistors (LE-OFETs). the Oligo(9,9-diarylfluorene) Derivatives Have High Photoluminescence Quant. Efficiencies up to Φ PL ≈ 70-75% and very low amplified spontaneous emission thresholds (Eth) down to 0.5 μJ/cm2 in their vacuum-deposited neat films. In particular, the trimer derivatives (B3 and T3) show higher ΦPL and lower Eth than those of the dimers (B2 and T2). Efficient deep-blue LE-OFETs with the electroluminescence (EL) peaking at λpeak - 429 nm were demonstrated using the ter(9,9-diarylfluorene) as the active layer. Rather high luminance up to L ≈ 150 cd/m2 and EL quantum efficiency up to ηext ≈ 0.60% were achieved with the optimum source-drain channel length, indicating bipolar carrier injection in the terfluorene layer under the FET operation.

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Optical properties of oligo(9,9-diarylfluorene) derivatives in thin films and their application for organic light-emitting field-effect transistors

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