Optimization of process parameters for high-efficiency polymer photovoltaic devices based on P3HT:PCBM system

Jin, Sung‐Ho; Naidu, B. Vijaya Kumar; Jeon, Han-Soo; Park, Sung Min; Park, Jin-Soo; Kim, Sung Chul; Lee, Jae Woo; Gal, Yeong‐Soon

doi:10.1016/j.solmat.2007.04.001

Cited by 88 publications

(29 citation statements)

References 33 publications

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“…[8,12,51] Electron Microscopy studies have shown that non-optimal P3HT:PCBM compositions impact morphology by reducing P3HT crystallinity within the active layer and causing unfavorable vertical phase segregation. [12] Representative impedance data, both in the form of ColeCole plots as well as the frequency dependence of the impedance (Bode plots) for each device architecture at short circuit conditions, are shown in Figure 6.…”

Section: P3ht:pcbm Devices With Varied Composition/morphologymentioning

confidence: 99%

In Situ Characterization of Lifetime and Morphology in Operating Bulk Heterojunction Organic Photovoltaic Devices by Impedance Spectroscopy

Leever

Bailey

Marks

et al. 2011

Advanced Energy Materials

239

216

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Time‐dependent charge transport in operating poly(3‐hexylthiophene):[6,6]‐phenyl‐C61‐butyric acid methyl ester (P3HT:PCBM) bulk heterojunction organic photovoltaic (OPV) devices has been characterized with impedance spectroscopy. Devices with varied composition and morphology were measured over a range of illumination intensities ranging from dark conditions to 1 sun and applied bias voltages ranging from 0.0 V to 0.75 V. Using an equivalent circuit model, materials properties such as dielectric constant and conductivity were determined and found to be in agreement with values measured by other methods. Average carrier lifetimes were also extracted from the model and found to correlate with measured power conversion efficiencies. At the short circuit condition and ∼1 sun illumination, the average electron lifetime was found to vary from 7.8 to 22 μs for devices with power conversion efficiencies ranging from 2.0 to 2.5%. These results suggest that impedance spectroscopy is an effective tool for predicting how processing parameters can impact device performance in organic bulk heterojunction photovoltaic devices.

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Section: P3ht:pcbm Devices With Varied Composition/morphologymentioning

confidence: 99%

In Situ Characterization of Lifetime and Morphology in Operating Bulk Heterojunction Organic Photovoltaic Devices by Impedance Spectroscopy

Leever

Bailey

Marks

et al. 2011

Advanced Energy Materials

239

216

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“…The device performance of such polymer solar cells can be enhanced by preparation condition such as annealing temperature, concentration and film thickness [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of PCBM:P3HT Bulk Heterojunction Solar Cells Doped with Germanium Phthalocyanine or Germanium Naphthalocyanine

Yoshida¹,

Oku²,

Suzuki³

et al. 2013

MSA

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[6,6]-phenyl C 61 -butyric acid methyl ester: poly (3-hexylthiophene) bulk heterojunction solar cells doped with germanium phthalocyanine or germanium naphthalocyanine were fabricated and characterized. Photovoltaic properties of the solar cells with inverted structures were investigated by optical absorption, current density-voltage characteristic and incident photon to current conversion efficiency. These germanium phthalocyanine and germanium naphthalocyanine blended as the third component absorbed light with wavelength longer than 700 nm. Morphology of solar cells was investigated by atomic force microscopy, and energy levels of the solar cells were discussed for power conversion efficiency.

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“…This material system currently represents the state of the art for organic photovoltaic devices, with the highest external quantum efficiencies (EQE) recorded being around 80% at 500 nm [18,19]. A schematic of the devices fabricated is shown in figure 1.…”

Section: Methodsmentioning

confidence: 99%

Detecting 6MV X-rays using an organic photovoltaic device

Kingsley

Pearson

Harris

et al. 2009

Organic Electronics

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An organic photovoltaic (OPV) device has been used in conjunction with a flexible inorganic phosphor to produce a radiation tolerant, efficient and linear detector for 6 MV X-Rays. The OPVs were based on a blend of poly(3-hexylthiophene-2,5-diyl) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM). We show that the devices have a sensitivity an order of magnitude higher than a commercial silicon detector used as a reference. Exposure to 360 Grays of radiation resulted in a small (2%) degradation in performance demonstrating that these detectors have the potential to be used as flexible, real-time, in-vivo dosimeters for oncology treatments.

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Optimization of process parameters for high-efficiency polymer photovoltaic devices based on P3HT:PCBM system

Cited by 88 publications

References 33 publications

In Situ Characterization of Lifetime and Morphology in Operating Bulk Heterojunction Organic Photovoltaic Devices by Impedance Spectroscopy

In Situ Characterization of Lifetime and Morphology in Operating Bulk Heterojunction Organic Photovoltaic Devices by Impedance Spectroscopy

Fabrication and Characterization of PCBM:P3HT Bulk Heterojunction Solar Cells Doped with Germanium Phthalocyanine or Germanium Naphthalocyanine

Detecting 6MV X-rays using an organic photovoltaic device

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