Preparation and Surface Morphology Control of Self-Assembled Graphene Oxide/Chitosan Composite Membrane

Wen, Xiufang; Han, Di; Meng, Hao; Zhang, Jiawei; Cai, Zhi‐Qi; Qian, Yu; Chen, Tao

doi:10.1166/sam.2015.2152

Cited by 2 publications

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“…SnO 2 has been widely used in excitonic solar cells due to its various advantages over TiO 2 , which include the position of the conduction band edge and it having 100 times more electron mobility [10][11][12][13][14]. Defects in large surface area semiconductors are limiting factors that impede charge transport and in order to control the effect of defects present in bulk SnO 2 , various dielectric layers such as Al 2 O 3 and TiO 2 have been examined and reports confirm the enhancement in performance [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

On the physics of dispersive electron transport characteristics in SnO₂ nanoparticle-based dye sensitized solar cells

et al. 2018

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The present study elucidates dispersive electron transport mediated by surface states in tin oxide (SnO) nanoparticle-based dye sensitized solar cells (DSSCs). Transmission electron microscopic studies on SnO show a distribution of ∼10 nm particles exhibiting (111) crystal planes with inter-planar spacing of 0.28 nm. The dispersive transport, experienced by photo-generated charge carriers in the bulk of SnO, is observed to be imposed by trapping and de-trapping processes via SnO surface states present close to the band edge. The DSSC exhibits 50% difference in performance observed between the forward (4%) and reverse (6%) scans due to the dispersive transport characteristics of the charge carriers in the bulk of the SnO. The photo-generated charge carriers are captured and released by the SnO surface states that are close to the conduction band-edge resulting in a very significant variation; this is confirmed by the hysteresis observed in the forward and reverse scan current-voltage measurements under AM1.5 illumination. The hysteresis behavior assures that the charge carriers are accumulated in the bulk of electron acceptor due to the trapping, and released by de-trapping mediated by surface states observed during the forward and reverse scan measurements.

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Section: Introductionmentioning

confidence: 99%

On the physics of dispersive electron transport characteristics in SnO₂ nanoparticle-based dye sensitized solar cells

et al. 2018

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Preparation and Application of the Composite from Chitosan

Chen

2017

Handbook of Composites From Renewable Materials

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Preparation and Surface Morphology Control of Self-Assembled Graphene Oxide/Chitosan Composite Membrane

Cited by 2 publications

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On the physics of dispersive electron transport characteristics in SnO₂ nanoparticle-based dye sensitized solar cells

On the physics of dispersive electron transport characteristics in SnO₂ nanoparticle-based dye sensitized solar cells

Preparation and Application of the Composite from Chitosan

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Preparation and Surface Morphology Control of Self-Assembled Graphene Oxide/Chitosan Composite Membrane

Cited by 2 publications

References 0 publications

On the physics of dispersive electron transport characteristics in SnO2 nanoparticle-based dye sensitized solar cells

On the physics of dispersive electron transport characteristics in SnO2 nanoparticle-based dye sensitized solar cells

Preparation and Application of the Composite from Chitosan

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Product

Resources

About

On the physics of dispersive electron transport characteristics in SnO₂ nanoparticle-based dye sensitized solar cells

On the physics of dispersive electron transport characteristics in SnO₂ nanoparticle-based dye sensitized solar cells