Improved efficiency of solar cells based on BEHP-co-MEH-PPV doped with ZnO nanoparticles

Mustapha, Nazir; Ibnaouf, K.H.; Fekkai, Zakia; Hennache, Ali; Prasad, Saradh; Alyamani, Ahmed Y.

doi:10.1016/j.ijleo.2013.03.161

Cited by 15 publications

(2 citation statements)

References 16 publications

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“…The photo-physical properties of conjugated polymers are yet to be fully understood. However, in recent years, conducting polymers have emerged as a smart new gain medium for lasers [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ], solar cells [ 20 ], and optical amplifiers [ 21 ] that are tunable all through the visible spectrum.…”

Section: Introductionmentioning

confidence: 99%

An Efficient Violet Amplified Spontaneous Emission (ASE) from a Conjugated Polymer (PFO-co-pX) in Solution

et al. 2017

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The optical of conjugated polymer poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-(2,5-p-xylene)] also known as [(PFO-co-pX), ADS145UV], dissolved in a few solvents, has been measured. The absorption, emission spectra, and quantum yield have been investigated by using a spectrophotometer and spectrofluorometer, respectively. The properties of Amplified Spontaneous Emission (ASE) of conjugated PFO-co-pX polymer under different conditions such as solvent type, concentration, and pumping energy have been examined by using the tripled frequency of a Nd:YAG laser as a source of pumping. The relation between output energy and pumping energy for the samples with different concentrations in three solvents has been studied. In addition, efficiency and optical gain from the ASE were measured. Additionally, the stability of this polymer as a laser material was investigated. Among the host of conjugated polymer lasers obtained by optical pumping, this conjugated polymer has exhibited only one ASE band under a wide range of concentrations and pump power values. This is most likely due to the steric hindrance by the copolymer segment pX (2,5-p-xylene). This investigation has provided new insights into the excited state dynamics of conjugated polymer materials and has shown that this new conjugated polymer is quite efficient in the violet region.

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Section: Introductionmentioning

confidence: 99%

An Efficient Violet Amplified Spontaneous Emission (ASE) from a Conjugated Polymer (PFO-co-pX) in Solution

et al. 2017

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“…These QPCs were produced under optical pumping using the third harmonic of a Nd:YAG laser (355 nm, 30 ps, 10 Hz) to produce ASE at 610 nm with a full width half-maximum (FWHM) of 1 nm, and this peak (610 nm) could be attributed to the excimer of the MEH–PPV segment of BMP [ 22 ]. Organic photovoltaic cells were fabricated by sandwiching a composite active organic electronic material layer of the conjugated co-polymer BMP mixed with ZnO nanoparticles, between two metallic conductors [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Gamma-Irradiation Effects on the Spectral and Amplified Spontaneous Emission (ASE) Properties of Conjugated Polymers in Solution

et al. 2016

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Abstract:In this paper, we investigate the effects of gamma (γ) radiation on the spectral and mplified spontaneous emission (ASE) properties of two conjugated polymers (CPs) viz., poly [2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) (CPM) and poly{[2-[2 , 5 -bis(2"-ethylhexyloxy)phenyl]-1,4-phenylenevinylene]-co-[2-methoxy-5-(2 -ethylhexyloxy)-1,4-phenylene vinylene]} (BEHP-co-MEH-PPV) (BMP) in tetrahydrofuran (THF). Gamma irradiation strongly affected the photophysical properties of these CPs. To explore these changes, gamma radiation, in the range of 2-50 kGy, was used to maintain the temperature at 5 • C constant for all doses at a dose rate of 12.67 kGy/h, using a 60 Co gamma ray. The ASE profiles of the CPs in THF were obtained under the high power excitation of a Nd:YAG laser (355 nm), pre-and post-radiation. The result revealed a dramatic blue shift of the fluorescence and the ASE spectra after gamma irradiation. This shift in the luminescence and ASE spectra could be a response to the conformational disorders such as gamma irradiation-induced polymer crosslinking, which was verified using Raman spectra, FTIR, and swelling experiments. This could be the first report on the effect of gamma radiation on the ASE properties of conjugated polymers.

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Solid state ASE from an oligomer (HOTF) in polymethyl methacrylate

Ibnaouf

Taha

Idriss

et al. 2018

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Improved efficiency of solar cells based on BEHP-co-MEH-PPV doped with ZnO nanoparticles

Cited by 15 publications

References 16 publications

An Efficient Violet Amplified Spontaneous Emission (ASE) from a Conjugated Polymer (PFO-co-pX) in Solution

An Efficient Violet Amplified Spontaneous Emission (ASE) from a Conjugated Polymer (PFO-co-pX) in Solution

Gamma-Irradiation Effects on the Spectral and Amplified Spontaneous Emission (ASE) Properties of Conjugated Polymers in Solution

Solid state ASE from an oligomer (HOTF) in polymethyl methacrylate

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