High efficiency planar Si/organic heterojunction hybrid solar cells

He, Li; Jiang, Changyun; Wang, Hao; Lai, Donny; Rusli, Rusli

doi:10.1063/1.3684872

Cited by 158 publications

(167 citation statements)

References 20 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: 97%

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

Liu

Ono

Tang

et al. 2012

Applied Physics Letters

108

110

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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: 97%

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

Liu

Ono

Tang

et al. 2012

Applied Physics Letters

108

110

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“…The degradation in V oc observed for the SiNC hybrid cells is also corroborated by the increased reverse saturation current density (J 0 ) of the dark J-V curve shown in Figure 3d, which is up to 1 order of magnitude higher than that of the planar cell. This issue can be addressed by proper surface treatment and passivation to minimize the defects [21][22][23]. Figure 3c shows the external quantum efficiency (EQE) of the hybrid solar cells where it is seen that the cell with P = 400 nm exhibits the strongest spectral response, particularly at a shorter wavelength range.…”

Section: Methodsmentioning

confidence: 99%

Hybrid Si nanocones/PEDOT:PSS solar cell

Wang¹,

Wang²,

Rusli³

2016

Nano Online

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Periodic silicon nanocones (SiNCs) with different periodicities are fabricated by dry etching of a Si substrate patterned using monolayer polystyrene (PS) nanospheres as a mask. Hybrid Si/PEDOT:PSS solar cells based on the SiNCs are then fabricated and characterized in terms of their optical, electrical, and photovoltaic properties. The optical properties of the SiNCs are also investigated using theoretical simulation based on the finite element method. The SiNCs reveal excellent light trapping ability as compared to a planar Si substrate. It is found that the power conversion efficiency (PCE) of the hybrid cells decreases with increasing periodicity of the SiNCs. The highest PCE of 7.1% is achieved for the SiNC hybrid cell with a 400-nm periodicity, due to the strong light trapping near the peak of the solar spectrum and better current collection efficiency.

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“…Compared to the cell with hydrogenterminated Si surface (H-Si), the one with oxygen-terminated Si surface (SiO x -Si) exhibited a 530-fold increase in the PCE, from 0.02% to 10.6%. 18 However, there were few reports about the effect of PEDOT:PSS film on the cell performance. 19 PEDOT:PSS in aqueous solution is deposited on a substrate and a post-annealing process is indispensable to remove the residue water in the as-fabricated film.…”

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confidence: 99%

Hole electrical transporting properties in organic-Si Schottky solar cell

Shen

Zhu

Song

et al. 2013

Applied Physics Letters

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In this work we investigated the hole electrical transporting properties effect on the organic-Si hybrid Schottky solar cells. By changing the post-annealing atmosphere of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS) film, the power conversion efficiencies of the Schottky Si/PEDOT:PSS cell boosted from 6.40% in air to 9.33% in nitrogen. Current-voltage, capacitance-voltage, external quantum efficiency, and transient photovoltage measurements illustrated that the enhanced power conversion efficiency of the cell was ascribed to the increase in both conductivity and work function (WP) of PEDOT:PSS film. The increased conductivity reduced the series resistance (RS) within the cell, and the higher WP generated the larger built-in potential (Vbi) which resulted in the improvement of the open-circuit voltage. In addition, the decreased RS and enlarged Vbi were beneficial for the efficient charge transport/collection, contributing to the enhancement of the fill factor. Our results indicated that the conductivity as well as the WP of the hole transporting layer played an important role in the organic-Si Schottky solar cell.

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High efficiency planar Si/organic heterojunction hybrid solar cells

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Cited by 158 publications

References 20 publications

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

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

Hybrid Si nanocones/PEDOT:PSS solar cell

Hole electrical transporting properties in organic-Si Schottky solar cell

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