Highly Efficient Solution‐Processed Poly(3,4‐ethylenedio‐xythiophene):Poly(styrenesulfonate)/Crystalline–Silicon Heterojunction Solar Cells with Improved Light‐Induced Stability

Liu, Qiming; Ishikawa, Ryo; Funada, Shuji; Ohki, Tatsuya; Ueno, Keiji; Shirai, Hajime

doi:10.1002/aenm.201500744

Cited by 94 publications

(97 citation statements)

References 29 publications

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“…In recent years, silicon-organic hybrid solar cells are attracting great attention benefit from their advantages such as low-temperature spin-coating process, simple device structure, and low-cost potential [1][2][3][4][5][6][7]. Several kinds of organic materials, including conjugated polymers [1][2][3][4]8], conjugated small molecules [9,10], and fullerene derivatives [11], are used as hole or electron transporting layer in hybrid solar cells.…”

Section: Introductionmentioning

confidence: 99%

Highly Conductive PEDOT:PSS Transparent Hole Transporting Layer with Solvent Treatment for High Performance Silicon/Organic Hybrid Solar Cells

Yang

Chen

et al. 2017

Nanoscale Res Lett

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Efficient Si/organic hybrid solar cells were fabricated with dimethyl sulfoxide (DMSO) and surfactant-doped poly(3,4-ethylenedioxythiophene): polystyrene (PEDOT:PSS). A post-treatment on PEDOT:PSS films with polar solvent was performed to increase the device performance. We found that the performance of hybrid solar cells increase with the polarity of solvent. A high conductivity of 1105 S cm − 1 of PEDOT:PSS was achieved by adopting methanol treatment, and the best efficiency of corresponding hybrid solar cells reaches 12.22%. X-ray photoelectron spectroscopy (XPS) and RAMAN spectroscopy were utilized to conform to component changes of PEDOT:PSS films after solvent treatment. It was found that the removal of the insulator PSS from the film and the conformational changes are the determinants for the device performance enhancement. Electrochemical impedance spectroscopy (EIS) was used to investigate the recombination resistance and capacitance of methanol-treated and untreated hybrid solar cells, indicating that methanol-treated devices had a larger recombination resistance and capacitance. Our findings bring a simple and efficient way for improving the performance of hybrid solar cell.

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Section: Introductionmentioning

confidence: 99%

Highly Conductive PEDOT:PSS Transparent Hole Transporting Layer with Solvent Treatment for High Performance Silicon/Organic Hybrid Solar Cells

Yang

Chen

et al. 2017

Nanoscale Res Lett

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“…After PEDOT:PSS coating, the reflectance of both planar Si and SiNWs samples decreases compared to the uncoated samples. In this case, the PEDOT:PSS could be acting as an antireflective coating to reduce the reflectance of Si layer as mentioned in previous reports [33,34]. After Gr is added, the reflectance of all samples is reduced about 3-5% compared to the samples coated PEDOT:PSS without Gr.…”

Section: Resultsmentioning

confidence: 69%

Effect of Surface Morphology and Dispersion Media on the Properties of PEDOT:PSS/n-Si Hybrid Solar Cell Containing Functionalized Graphene

Trinh

Hong

Thắng

et al. 2017

Advances in Materials Science and Engineering

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We present the results on the effect of surface morphology and dispersion media on the properties of PEDOT:PSS/n-Si hybrid solar cell containing functionalized graphene (Gr). The hybrid solar cells based on SiNWs showed higher power conversion efficiency (PCE) compared to the planar based cells due to suppressing the carrier recombination and improving carrier transport efficiency. The PCE of hybrid solar cells could be improved by adding Gr into PEDOT:PSS. Different solvents including deionized (DI) water, ethylene glycol (EG), and isopropyl alcohol (IPA) were used as media for Gr dispersion. The best performance was obtained for the cell containing Gr dispersed in EG with a measured PCE of 7.33% and nearly 13% and 16% enhancement in comparison with the cells using Gr dispersed in IPA and DI water, respectively. The increase in PCE is attributed to improving the carrier-mobility, electrical conductivity, PEDOT crystallinity, and ordering.

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“…[1][2][3][4][5][6][7][8][9][10][11] The conducting polymer of poly (3,4-ethylenedioxythiophene):polystyrene (PEDOT:PSS) is a suitable organic material to act as hole transporting, [ 4,6,12 ] surface passivation, [ 11,13 ] optical window as well as antirefl ection layer. [1][2][3][4][5][6][7][8][9][10][11] The conducting polymer of poly (3,4-ethylenedioxythiophene):polystyrene (PEDOT:PSS) is a suitable organic material to act as hole transporting, [ 4,6,12 ] surface passivation, [ 11,13 ] optical window as well as antirefl ection layer.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9][10][11] The conducting polymer of poly (3,4-ethylenedioxythiophene):polystyrene (PEDOT:PSS) is a suitable organic material to act as hole transporting, [ 4,6,12 ] surface passivation, [ 11,13 ] optical window as well as antirefl ection layer. [ 7,14 ] Many efforts have been made to minimize optical loss by suppressing light refl ection. [ 7,14 ] Many efforts have been made to minimize optical loss by suppressing light refl ection.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Si/Organic Heterojunction Solar Cells with High Open‐Circuit Voltage via Improving Junction Quality

Cui

Aghdassi

et al. 2016

Adv Funct Materials

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Nanostructured silicon (Si) can provide improved light harvest effi ciencies in organic-Si heterojunction solar cells due to its low light refl ection ratio compared with planar one. However, the associated large surface/volume ratio of nanostructured Si suffers from serious surface recombination as well as poor adhesion with organics in organic-Si heterojunction solar cells, which leads to an inferior open-circuit voltage ( V oc ). Here, we develop a simple and effective method to suppress charge recombination as well as enhancing adhesion force between nanostructured Si and organics by incorporating a silane chemical, namely 3-glycidoxypropyltrimethoxydsilane (GOPS). GOPS can chemically graft onto nanostructured Si and improve the aqueous organic wetting properties, suppressing surface charge recombination velocity dramatically. In addition, this chemically grafted layer can enhance adhesion force between organics and Si. In such a way, a record V oc of 640 mV associated with a power conversion effi ciency of 14.1% is obtained for organic-nanostructured Si heterojunction devices. These fi ndings suggest a promising approach to low-cost and simple fabrication for high-performance organic-Si solar cells.

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Highly Efficient Solution‐Processed Poly(3,4‐ethylenedio‐xythiophene):Poly(styrenesulfonate)/Crystalline–Silicon Heterojunction Solar Cells with Improved Light‐Induced Stability

Cited by 94 publications

References 29 publications

Highly Conductive PEDOT:PSS Transparent Hole Transporting Layer with Solvent Treatment for High Performance Silicon/Organic Hybrid Solar Cells

Highly Conductive PEDOT:PSS Transparent Hole Transporting Layer with Solvent Treatment for High Performance Silicon/Organic Hybrid Solar Cells

Effect of Surface Morphology and Dispersion Media on the Properties of PEDOT:PSS/n-Si Hybrid Solar Cell Containing Functionalized Graphene

Nanostructured Si/Organic Heterojunction Solar Cells with High Open‐Circuit Voltage via Improving Junction Quality

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