Ultrahigh density array of CdSe nanorods for CdSe/polymer hybrid solar cells: enhancement in short-circuit current density

Kwon, Seungchul; Shim, Myungsun; Lee, Jeung In; Lee, Tae‐Woo; Cho, Kilwon; Kim, Jin Kon

doi:10.1039/c1jm11990g

Cited by 22 publications

(12 citation statements)

References 49 publications

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“…The PCE of the cell with a 3D interface was twice as large as that of another solar cell based on a bilayer thin lm from 0.13% to 0.28%. 147 The vertically aligned CdS NRs provide the minimal electron transport path to reduce the charge carrier recombination at the heterojunction interface. The photoactive MEH-PPV layer was prepared by dip-/spin-coating and an optimal PCE of 0.035% was obtained.…”

Section: Ii-vi Semiconductor-based Oih Solar Cellsmentioning

confidence: 99%

Recent progress in organic–inorganic hybrid solar cells

et al. 2013

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Section: Ii-vi Semiconductor-based Oih Solar Cellsmentioning

confidence: 99%

Recent progress in organic–inorganic hybrid solar cells

et al. 2013

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“…P3HT) or liquid electrolytes. [18][19][20][21] The CdSe nanoparticle size or nanorod length can be controlled to tune the optical response range, and the nanoparticle surface can be functionalized to facilitate electron injection at the interface. 22 Solar cells incorporating CdSe nanostructures have shown significantly improved light absorption and charge transfer processes, with enhanced internal quantum efficiency and solar cell performance.…”

Section: Introductionmentioning

confidence: 99%

“…In a few studies on CdSe nanorod/nanowire arrays, the arrays were synthesized in an alumina template or by electrodeposition and the structure has poor crystallinity, yielding modest cell efficiencies in the range of 0.28% to 3.6%. [18][19][20][21] Although we have seen so many different types of solar cells involving CdSe nanostructures, applying CdSe on fiber substrates to construct FSCs has not been reported.…”

Section: Introductionmentioning

confidence: 99%

Wire-supported CdSe nanowire array photoelectrochemical solar cells

Zhang

Shi

et al. 2012

Phys. Chem. Chem. Phys.

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Previous fiber-shaped solar cells are based on polymeric materials or dye-sensitized wide band-gap oxides. Here, we show that efficient fiber solar cells can be made from semiconducting nanostructures (e.g. CdSe) with smaller band-gap as the light absorption material. We directly grow a vertical array of CdSe nanowires uniformly around a core metal wire and make the device by covering the top of nanowires with a carbon nanotube (CNT) film as the porous transparent electrode. The CdSe-CNT fiber solar cells show power conversion efficiencies of 1-2% under AM 1.5 illumination after the nanowires are infiltrated with redox electrolyte. We do not use a secondary metal wire (e.g. Pt) as in conventional fiber-shaped devices, instead, the end part of the CNT film is condensed into a conductive yarn to serve as the secondary electrode. In addition, our CdSe nanowire-based photoelectrochemical fiber solar cells maintain good flexibility and stable performance upon rotation and bending to large angles.

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“…The low V OC of a device with a higher Cs/Zn molar ratio of 0.121 might be attributed to increased leakage current and density of the trap sites, resulting in trapassisted recombination on the rough ZnO:Cs surface. 24,25 To verify the V OC enhancement of the device using the ZnO:Cs electron transport layer, the surface potential shi of ZnO:Cs lms depending on the Cs-doping concentration was measured by SKPM. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%