Electronic and Photovoltaic Properties of p-Si/PCBM:MEH-PPV Organic-Inorganic Hybrid Photodiode

Yakuphanoğlu, F.; Farooq, W. A.

doi:10.12693/aphyspola.119.890

Cited by 7 publications

(2 citation statements)

References 35 publications

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“…In a previous work, Ahmad et al found that blending MEH-PPV with Alq 3 in chloroform leads to minor changes in the photoluminescence and favors the photodetection properties [18]. Similarly, Yakuphanoglu et al observed photovoltaic effects in blends of MEH-PPV with PCBM [19]. In our case, the blending process was carried out in toluene and the MEH-PPV:Alq 3 layers revealed dramatic changes on the photoluminescence spectrum, suitable for OLED devices.…”

Section: Introductionsupporting

confidence: 57%

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Luminescence Tuning of MEH-PPV for Organic Electronic Applications

Paez-Sierra

Marulanda

2016

Acta Phys. Pol. A

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In this report, a doped semiconducting ink consisting of a blended poly [2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV) with aluminium-tris (8-hydroxychinolin) (Alq3) and diluted in toluene is formulated. The intentional doping with the electron transport nanoparticle Alq3 results in an additional band gap state of the hole transport MEH-PPV polymer and reduction of the switch on voltage of the organic LED display. Doping is probed at room temperature with photoluminescence spectroscopy. Photoluminescence results revealed that as the Alq3 content increases in blends, characteristic peaks of intensities of MEH-PPV are broadened and reduced. In addition, the emission for Alq3 concentrations between 30% and 60% are featured by a band at 565 nm (2.19 eV) for the lower concentration and consistently blue shifted to 530 nm (2.33 eV) for the higher concentration. This new band at 565 nm (2.19 eV) neither belongs to pure MEH-PPV nor to Alq3 and evidences charge transfer from the lowest unoccupied molecular orbital of the Alq3 to the highest occupied molecular orbital of the MEH-PPV.

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Section: Introductionsupporting

confidence: 57%

“…The optical setup consisted of a thermoelectrically cooled (TEC) USB-based photoluminescence spectrometer designed at QUBITeXp International Trade S.A.S. Colombia [19,20]. The setup consists of a 405 nm solid-state laser source focused on the samples with a 20× objective.…”

Section: Methodsmentioning

confidence: 99%