Air Stable, Efficient Hybrid Photovoltaic Devices Based on Poly(3-hexylthiophene) and Silicon Nanostructures

Zhang, Fute; Sun, Baoquan; Song, Tao; Zhu, Xiulin; Lee, Shuit‐Tong

doi:10.1021/cm103221a

Cited by 152 publications

(160 citation statements)

References 47 publications

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“…Thus, the improved adhesion of PEDOT:PSS conjugated polymer on hydrophobic c-Si wafer results in the efficient suppression of defect generation at the c-Si/organic interface, resulting in the higher device performance in addition to a native SiO x layer. [11][12][13][14] In conclusion, we have studied the role of Zonyl fluorosurfactant addition to conductive PEDOT:PSS on the performance of c-Si/PEDOT:PSS hybrid heterojucntion devices. The 0.1% Zonly addition to conductive PEDOT:PSS improved significantly the adhesion on hydrophobic c-Si wafer.…”

mentioning

confidence: 99%

Highly efficient crystalline silicon/Zonyl fluorosurfactant-treated organic heterojunction solar cells

Liu

Ono

Tang

et al. 2012

Applied Physics Letters

108

111

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We demonstrate a highly efficient hybrid crystalline silicon (c-Si) based photovoltaic devices with hole-transporting transparent conductive poly-(3,4-ethlenedioxythiophene):poly(styrenesufonic acid) (PEDOT:PSS) films, incorporating a Zonyl fluorosurfactant as an additive, compared to non additive devices. The usage of a 0.1% Zonly treated PEDOT:PSS improved the adhesion of precursor solution on hydrophobic c-Si wafer without any oxidation process. The average power conversion efficiency η value was 10.8%-11.3%, which was superior to those of non-treated devices. Consequently, c-Si/Zonyl-treated PEDOT:PSS heterojunction devices exhibited the highest η of 11.34%. The Zonyl-treated soluble PEDOT:PSS composite is promising as a hole-transporting transparent conducting layer for c-Si/organic photovoltaic applications.

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mentioning

confidence: 99%

Highly efficient crystalline silicon/Zonyl fluorosurfactant-treated organic heterojunction solar cells

Liu

Ono

Tang

et al. 2012

Applied Physics Letters

108

111

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“…The stability of Al is poor as compared to Ag because Al is easily oxidized in an atmosphere environment owing to the high ionization tendency. For instance, In/Ga alloys with a work function of 4.08-4.25 eV [31][32][33][34], which is similar to work function of Al, might be effective as an alternative to Al because they have low ionization tendencies as compared to Al. Regarding the further improvement of the PCE of our hybrid solar cells using a Al rear electrode, the formation of the BSF regions consisting of a heavily-doped n + layer at the Si back surface/rear electrode interface [29,35] in order to prevent the ingress of holes toward trap levels at the interface regions, and the insertion of a hole-injection (and electron-blocking) layer at the PEDOT:PSS/front electrode interface [13] and/or an electron-injection (and hole-blocking) layer at the Si back surface/rear electrode interface [36] in order to reduce barrier height might be effective in enhancing the carrier transfer efficiency from the Si/PEDOT:PSS regions to each electrode.…”

Section: Effect Of Rear Electrode Of Si/pedot:pss Hybrid Solar Cells mentioning

confidence: 99%

Improved Separation and Collection of Charge Carriers in Micro-Pyramidal-Structured Silicon/PEDOT:PSS Hybrid Solar Cells

et al. 2017

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Silicon (Si)/organic polymer hybrid solar cells have great potential for becoming cost-effective and efficient energy-harvesting devices. We report herein on the effects of polymer coverage and the rear electrode on the device performance of Si/poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) hybrid solar cells with micro-pyramidal structures. These hybrid solar cells provided adequate generation of charge carriers owing to the suppression of reflectance to below 13%. Additionally, the separation of the photogenerated charge carriers at the micro-pyramidal-structured Si/PEDOT:PSS interface regions and their collection at the electrodes were dramatically improved by tuning the adhesion areas of the PEDOT:PSS layer and the rear electrode materials, thereby attaining a power conversion efficiency of 8.25%. These findings suggest that it is important to control the PEDOT:PSS coverage and to optimize the rear electrode materials in order to achieve highly efficient separation of the charge carriers and their effective collection in micro-textured hybrid solar cells.

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“…在最近的报道中, 已经有杂化光伏器件使用超薄的柔性硅片作为基底 [54,55] 则先将硅纳米线剥离下来, 再与 P3HT: PCBM 混合, 实现了更好的接触优化, 将该电池的效率提升到 4.165%. 通过在硅纳米线表面用电化学的方法沉积铂的纳米颗粒, Sun 课题组将 SiNW/P3HT 的杂化器件效率提升了 70% [60] . 铂纳米颗粒在有机/无机的界面处主要起两个…”

Section: 基于硅纳米线的杂化太阳能电池unclassified

Silicon-based Organic/inorganic Hybrid Solar Cells

Liu¹,

Sun²

2015

Acta Chim. Sinica

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Organic-inorganic hybrid solar cells display potential to be high efficiency and low cost photovoltaics due to combined advantages of high stability, high mobility and well developed fabrication process from inorganic materials and the properties to adjust organic molecule structure, absorption spectrum and bandgap from solution processable organics. Heterojunction photovoltaics formed by silicon and organics at low temperature has drawn great interests over past five years and the reported highest power conversion efficiency (PCE) has achieved up to 13.8%. The emerging of nanotechnology allows for silicon micro/nano structures including silicon nanowires, pyramids and nanocones with excellent light absorption properties which can greatly reduce the consumption of silicon materials as well as the purity dependence. The micro/nano structures also exhibit the advantages to offer larger junction area and more effective separation pathways for charge carriers. It is noticeable that silicon nanowire-based flexible hybrid solar cells with tens of micrometers silicon substrate thickness have achieved the PCE of above 12% adopting the most popular commercialized conjugated polymer poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS). With the rapid developments of new organic materials and interface engineering methods, different kinds of organic-silicon hybrid solar cells has been reported and shown superior photovoltaic characteristics. The adopted organics include PEDOT:PSS, poly(3-hexylthiophene) (P3HT), 2,2',7,7'-Tetrakis-(N,N-di-4-methoxyphenylamino)-9,9'-spirobifluorene (Spiro-OMeTAD), poly(3-octylthiophene) (P3OT), fullerene derivative and so on. This paper reviews the device structures of silicon-based hybrid solar cells, working mechanism and related organic molecular. The hybrid heterojunction with different materials and fabrication processes has been discussed. The last section summarizes the method used to improve the performance of the hybrid solar cells and depicts the challenges and prospects of the silicon-based hybrid solar cells in the near future.

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Air Stable, Efficient Hybrid Photovoltaic Devices Based on Poly(3-hexylthiophene) and Silicon Nanostructures

Cited by 152 publications

References 47 publications

Highly efficient crystalline silicon/Zonyl fluorosurfactant-treated organic heterojunction solar cells

Highly efficient crystalline silicon/Zonyl fluorosurfactant-treated organic heterojunction solar cells

Improved Separation and Collection of Charge Carriers in Micro-Pyramidal-Structured Silicon/PEDOT:PSS Hybrid Solar Cells

Silicon-based Organic/inorganic Hybrid Solar Cells

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