On Charge Carrier Recombination in Sb<sub>2</sub>S<sub>3</sub> and Its Implication for the Performance of Solar Cells

Darga, Arouna; Mencaraglia, Denis; Longeaud, Christophe; Savenije, Tom J.; O’Regan, Brian C.; Bourdais, S.; Muto, Takuma; Delatouche, Bruno; Dennler, Gilles

doi:10.1021/jp4072394

Cited by 55 publications

(55 citation statements)

References 26 publications

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“…The main disadvantage of this method is that it is difficult to prevent the formation of some antimony oxide during the Sb 2 S 3 deposition . Although electronic states within the bandgap mean that recombination within Sb 2 S 3 is relatively high and diffusion lengths are currently limited , it remains an interesting photovoltaic material because it is stable, inorganic and it can be deposited in continuous and uniform thin layers.…”

Section: Introductionmentioning

confidence: 99%

Evaporated and solution deposited planar Sb₂S₃ solar cells: A comparison and its significance

Mayon

White

Wang

et al. 2015

Physica Status Solidi (a)

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Sb2S3 is an alternative emerging material for chalcogenide solar cells. In this paper, we compare planar solar cells in which the Sb2S3 absorber was deposited by either thermal evaporation or a solution based process. The planar inorganic solar cell with evaporated Sb2S3 has an efficiency of 1.7%. This is much higher than the efficiency of 0.8% for solution deposited Sb2S3, and the highest known reported efficiency for a planar Sb2S3 solar cell with a CuSCN hole conducting layer. The evaporated Sb2S3 film is sulfur‐rich, which results in flattening of the film surface after annealing at 300 °C, thereby reducing the likelihood of contact between the Sb2S3 and gold contact. In addition, the crystal size of the evaporated Sb2S3 film is about 30% larger than that of the solution deposited Sb2S3 and has different preferential crystal planes. These features make evaporation a promising deposition method for flat solar cells made from sulfur‐based semiconducting materials. Cross section image of the evaporated Sb2S3 solar cell with labels for each layer.

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Section: Introductionmentioning

confidence: 99%

Evaporated and solution deposited planar Sb₂S₃ solar cells: A comparison and its significance

Mayon

White

Wang

et al. 2015

Physica Status Solidi (a)

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“…Based on the literature research, we find that the electrical hysteresis frequently occurs in the materials that have the ambipolar transport feature, for example, PbSe and lead halide perovskite (CH 3 NH 3 PbI 3 ) ,. Similarly, Sb 2 S 3 has been reported to exhibit ambipolar transport behavior ,. In particular, the amorphous semiconductors possess high‐density of locate states in the electronic band structures, which may lead to the trapping and detrapping and the successive unbalanced distribution of electrons and holes, for instance, in the amorphous a‐Sb 2 S 3 colloids.…”

Section: Resultsmentioning

confidence: 93%

Interfacial N→Sb Nonbonded Interaction Enhances the Photoelectronic Performance of PVP‐Capped Sb₂S₃ Amorphous Colloids

et al. 2018

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The bonded or nonbonded interactions at the interface of ligands and surface atoms are a core issue in engineering the surface chemistry and (photo)electronic properties of semiconductor colloidal solids. Herein, we demonstrate the interfacial Lewis acid‐base N→Sb nonbonded interaction: N atoms in polyvinylpyrrolidone (PVP) molecules acting as an electron donor to enhance the photoconductivity and ‐responsivity of PVP‐capped Sb2S3 amorphous semiconductor colloids. The electron donation effect of PVP N atoms in the N→Sb interaction is backed by the upper shift of N 1s binding energy in the X‐ray photoelectron spectra (XPS) and the relevant literature. The repulsion of lone pair electrons (LPEs) of N atoms is thought to make 5 s2 LPEs of Sb atoms retract from Sb nuclei with an increased orbital volume, giving rise to high probability for the overlap and coupling of 5 s2 LPEs among neighboring Sb atoms on the surface of Sb2S3 amorphous colloids. Such a spatially and energetically matched electron‐electron coupling greatly contributes to the photoelectronic performance enhancement of amorphous Sb2S3. We believe that the electron coupling and improved (photo)electronics can be generalized in many semiconductors containing ns2 LPE metal cations by the surface/interface Lewis acid‐base interactions with suitable ligands.

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“…[4b, 12] In addition, the bandgap (1.7-1.8 eV) is perfectly suitable for top subcells in tandem solar cells coupled with al ow bandgap bottom subcells such as silicon or CIGSt oo vercomet he efficiency limitation of silicon and CIGSsolar cells. [13] Because of its carrierd iffusion length in theh undreds of nanometers, [14] Sb 2 S 3 can be appliedi ne ither as ensitized device structure or planarh eterojunction solar cells. Regardless of the device configuration, obtainingahigh powerconversion efficiency (PCE) relies on the fabrication of ah ighq uality absorber materials.…”

Section: Introductionmentioning

confidence: 99%

Aqueous‐Solution‐Based Approach Towards Carbon‐Free Sb₂S₃ Films for High Efficiency Solar Cells

Zhang

Tang

et al. 2018

ChemSusChem

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Sb S is a new kind of photovoltaic material that is promising for practical application in solar cells owing to its suitable bandgap, earth-abundant elements, and excellent stability. Here, we report on an aqueous-solution-based approach for the synthesis of Sb S films from easily accessible Sb O as antimony source. In this reaction, 3-mercaptopropionic acid was applied as both solvent and sulfur precursor, aqueous ammonia was employed as a solvent. After simple annealing at a temperature as low as 270 °C, the spin-coated precursor solution can generate compact, flat, uniform, and well-crystallized Sb S film. Mechanistic study showed that the formation of Sb-complex with ammonium carboxylates leads to the successful dissolution of Sb O powder. A suitable annealing process was able to generate carbon-free Sb S films. Planar heterojunction solar cell based on the as-prepared Sb S film delivered a power conversion efficiency of 5.57 %, which is the highest efficiency of solution-processed planar heterojunction Sb S solar cells and a high value in all kinds of Sb S solar cells. This research provides a convenient approach for the fabrication of device-quality Sb S films, and highlights solution processing of carbon-free metal chalcogenide thin films as a suitable process for application in optoelectronic devices.

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On Charge Carrier Recombination in Sb₂S₃ and Its Implication for the Performance of Solar Cells

Cited by 55 publications

References 26 publications

Evaporated and solution deposited planar Sb₂S₃ solar cells: A comparison and its significance

Evaporated and solution deposited planar Sb₂S₃ solar cells: A comparison and its significance

Interfacial N→Sb Nonbonded Interaction Enhances the Photoelectronic Performance of PVP‐Capped Sb₂S₃ Amorphous Colloids

Aqueous‐Solution‐Based Approach Towards Carbon‐Free Sb₂S₃ Films for High Efficiency Solar Cells

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On Charge Carrier Recombination in Sb2S3 and Its Implication for the Performance of Solar Cells

Cited by 55 publications

References 26 publications

Evaporated and solution deposited planar Sb2S3 solar cells: A comparison and its significance

Evaporated and solution deposited planar Sb2S3 solar cells: A comparison and its significance

Interfacial N→Sb Nonbonded Interaction Enhances the Photoelectronic Performance of PVP‐Capped Sb2S3 Amorphous Colloids

Aqueous‐Solution‐Based Approach Towards Carbon‐Free Sb2S3 Films for High Efficiency Solar Cells

Contact Info

Product

Resources

About

On Charge Carrier Recombination in Sb₂S₃ and Its Implication for the Performance of Solar Cells

Evaporated and solution deposited planar Sb₂S₃ solar cells: A comparison and its significance

Evaporated and solution deposited planar Sb₂S₃ solar cells: A comparison and its significance

Interfacial N→Sb Nonbonded Interaction Enhances the Photoelectronic Performance of PVP‐Capped Sb₂S₃ Amorphous Colloids

Aqueous‐Solution‐Based Approach Towards Carbon‐Free Sb₂S₃ Films for High Efficiency Solar Cells