Factors determining large observed increases in power conversion efficiency of P3HT:PCBM solar cells embedded with Mo6S9−xIx nanowires

Ćelić, Nevena; Pavlica, Egon; Borovšak, Miloš; Strle, J.; Buh, Jože; Zavašnik, Janez; Bratina, Gvido; Denk, Patrick; Scharber, Markus C.; Sariçiftçi, Niyazi Serdar; Mihailović, D.

doi:10.1016/j.synthmet.2015.12.009

Cited by 16 publications

(6 citation statements)

References 27 publications

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“…Polymers with fullerene as blends have been extensively probed for the photovoltaic investigations in which P3HT is employed as an electron donor and [6,6]-phenyl-C61 butyric acid methyl ester (PCBM) is employed as an electron acceptor [18][19][20]. In recent years, other alternate electron donor polymers such as PTB7 and (poly[2,1,3-benzothiadiazole-4,7-diyl [4,4-…”

Section: Introductionmentioning

confidence: 99%

Thickness Optimization and Photovoltaic Properties of Bulk Heterojunction Solar Cells Based on PFB–PCBM Layer

et al. 2020

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We report on the fabrication and study of bulk heterojunction (BHJ) solar cells based on a novel combination of a donor–acceptor poly(9,9-dioctylfluorenyl-2,7-diyl)-co-(N,N0-diphenyl)-N,N′di(p-butyl-oxy-pheyl)-1,4-diamino-benzene) (PFB) and [6, 6]-phenyl-C61-butyric acid methyl ester (PCBM) blend composed of 1:1 by volume. indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate (PEDOT:PSS)/PFB–PCBM/Ag BHJ solar cells are fabricated by a facile cost-effective spin-coating technique. The thickness of the active film (PFB–PCBM) plays an important role in the efficiency of light absorption, exciton creation, and dissociation into free charges that results in higher power conversion efficiency (PCE). In order to optimize the PCE as a function of active layer thickness, a number of solar cells are fabricated with different thicknesses of PFB–PCBM films at 120, 140, 160, 180, and 200 nm, and their photovoltaic characteristics are investigated. It is observed that the device with a 180 nm thick film demonstrates a maximum PCE of 2.9% with a fill factor (FF) of 53% under standard testing conditions (STC) (25 °C, 1.5 AM global, and 100 mW/cm2). The current–voltage (I-V) properties of the ITO/PEDOT:PSS/PFB–PCBM/Ag BHJ devices are also measured in dark conditions to measure and understand different parameters of the heterojunction. Atomic force microscopy (AFM) and ultraviolet-visible (UV-vis) absorption spectroscopy for the PFB–PCBM film of optimal thickness (180 nm) are carried out to understand the effect of surface morphology on the PCE and bandgap of the blend, respectively. The AFM micrographs show a slightly non-uniform and rough surface with an average surface roughness (Ra) of 29.2 nm. The UV-vis measurements of the PFB–PCBM blend exhibit a reduced optical bandgap of ≈2.34 eV as compared to that of pristine PFB (2.88 eV), which results in an improved absorption of light and excitons generation. The obtained results for the ITO/PEDOT:PSS/PFB–PCBM (180 nm)/Ag BHJ device are compared with the ones previously reported for the P3HT–PCBM blend with the same film thickness. It is observed that the PFB–PCBM-based BHJ device has shown two times higher open circuit voltage (Voc) and, hence, enhanced the efficiency.

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Section: Introductionmentioning

confidence: 99%

Thickness Optimization and Photovoltaic Properties of Bulk Heterojunction Solar Cells Based on PFB–PCBM Layer

et al. 2020

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“…) [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Illuminating light equal to semiconductor band gap make produce electron and hole in them.…”

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confidence: 99%

Manufacturing Process of Solar Cells Using Cadmium Oxide (CdO) and Rhodium (III) Oxide (Rh2O3) Nanoparticles

Heidari¹

2016

J Biotechnol Biomater

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“…The devices we build reach an average efficiency of 1.2-1.3% with an open voltage of 0.55V and an average short circuit current density of 5 mA/cm 2 [2]. Although the efficiency is lower than other polymeric organic solar cell devices reported in literature [15]- [18], we underline that we do not process these devices under controlled environment. Indeed, we use a semi-automatic mini-roll coater under environmental air.…”

Section: A Figures Of Merit Degradation During Ccsmentioning

confidence: 67%

Application of Photocurrent Model on Polymer Solar Cells Under Forward Bias Stress

Rizzo

Torto

Wrachien

et al. 2016

IEEE J. Photovoltaics

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Factors determining large observed increases in power conversion efficiency of P3HT:PCBM solar cells embedded with Mo6S9−xIx nanowires

Cited by 16 publications

References 27 publications

Thickness Optimization and Photovoltaic Properties of Bulk Heterojunction Solar Cells Based on PFB–PCBM Layer

Thickness Optimization and Photovoltaic Properties of Bulk Heterojunction Solar Cells Based on PFB–PCBM Layer

Manufacturing Process of Solar Cells Using Cadmium Oxide (CdO) and Rhodium (III) Oxide (Rh2O3) Nanoparticles

Application of Photocurrent Model on Polymer Solar Cells Under Forward Bias Stress

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