Hybrid solution-processed bulk heterojunction solar cells based on bismuth sulfide nanocrystals

Martínez, Luis; Stavrinadis, Alexandros; Higuchi, Shogo; Diedenhofen, Silke L.; Bernechea, María; Tajima, Kazuo; Konstantatos, Gerasimos

doi:10.1039/c3cp50599e

Cited by 43 publications

(34 citation statements)

References 33 publications

(66 reference statements)

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“…1) and other absorber materials [7–10 12–13 16–20]. Experimental solar cell performance compared to the Shockley–Queisser SQ limit (a).…”

Section: Discussionmentioning

confidence: 99%

“…The record efficiency of 7.5% [6] is comparable to that of other less investigated materials, such as the best lead-free perovskites [7], Cu 2 O [8] and Sb 2 Se 3 [9–10] and outperforms bismuth-halides [11–12], SnS [13] and Bi 2 S 3 [14–16]. However, the efficiency of Sb 2 S 3 trails behind the more thoroughly studied material systems such as lead-based perovskites [17], organic solar cells [18–19] or PbS [20], thus further technological investigation is needed.…”

Section: Introductionmentioning

confidence: 92%

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Spin-coated planar Sb₂S₃ hybrid solar cells approaching 5% efficiency

Kaienburg¹,

Klingebiel²,

Kirchartz³

2018

Beilstein J. Nanotechnol.

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Antimony sulfide solar cells have demonstrated an efficiency exceeding 7% when assembled in an extremely thin absorber configuration deposited via chemical bath deposition. More recently, less complex, planar geometries were obtained from simple spin-coating approaches, but the device efficiency still lags behind. We compare two processing routes based on different precursors reported in the literature. By studying the film morphology, sub-bandgap absorption and solar cell performance, improved annealing procedures are found and the crystallization temperature is shown to be critical. In order to determine the optimized processing conditions, the role of the polymeric hole transport material is discussed. The efficiency of our best solar cells exceeds previous reports for each processing route, and our champion device displays one of the highest efficiencies reported for planar antimony sulfide solar cells.

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“…1) and other absorber materials [7–10 12–13 16–20]. Experimental solar cell performance compared to the Shockley–Queisser SQ limit (a).…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 92%

Spin-coated planar Sb₂S₃ hybrid solar cells approaching 5% efficiency

Kaienburg¹,

Klingebiel²,

Kirchartz³

2018

Beilstein J. Nanotechnol.

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“…A wide variety of materials has been used to fabricate semiconductor nanocrystals, but most of them employs materials containing heavy metal elements as cations, such as Pb or Cd, which could pose health hazard if deployed on large scale. For this reason, environmentally benign nanocrystals are currently a very central topic in materials research for solar energy conversion …”

Section: Introductionmentioning

confidence: 99%

Colloidal Bi₂S₃Nanocrystals: Quantum Size Effects and Midgap States

Aresti

Saba

Piras

et al. 2014

Adv Funct Materials

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Among solution-processed nanocrystals containing environmentally benign elements, bismuth sulfi de (Bi 2 S 3 ) is a very promising n-type semiconductor for solar energy conversion. Despite the prompt success in the fabrication of optoelectronic devices deploying Bi 2 S 3 nanocrystals, the limited understanding of electronic properties represents a hurdle for further materials developments. Here, two key materials science issues for light-energy conversion are addressed: bandgap tunability via the quantum size effect, and photocarrier trapping. Nanocrystals are synthesized with controlled sizes varying from 3 to 30 nm. In this size range, bandgap tunability is found to be very small, a few tens of meV. First principles calculations show that a useful blueshift, in the range of hundreds of meV, is achieved in ultra-small nanocrystals, below 1.5 nm in size. Similar conclusions are envisaged for the class of pnictide chalcogenides with a ribbon-like structure [Pn 4 Ch 6 ] n (Pn = Bi, Sb; Ch = S, Se). Time-resolved differential transmission spectroscopy demonstrates that only photoexcited holes are quickly captured by intragap states. Photoexcitation dynamics are consistent with the scenario emerging in other metal-chalcogenide nanocrystals: traps are created in metal-rich nanocrystal surfaces by incomplete passivation by long fatty acid ligands. In large nanocrystals, a lower bound to surface trap density of one trap every sixteen Bi 2 S 3 units is found.

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“…The architecture of inorganic QD-based solar cells have experienced several generations of development, from initial Schottky junction QD solar cells, to later heterojunction QD solar cells and bulk QD heterojunction solar cells. [66][67][68] Meanwhile, new types of structure such as quantum junction and quantum funnel have been developed and have yielded impressive efficiencies. [26,69,70] And in parallel, device architectures are also playing an important role in the progress of HSCs.…”

Section: Architecture Improvementmentioning

confidence: 99%

Inorganic Quantum Dot Materials and their Applications in “Organic” Hybrid Solar Cells

Kim

Amaratunga

2019

Israel Journal of Chemistry

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Semiconductor quantum dots (QDs) are promising materials for polymer‐nanocrystal hybrid solar cells (HSCs). The aim of this review article is to present a comprehensive and current overview of inorganic QDs and their applications in HSCs. Fundamental properties of QDs are first illustrated. And then recent studies that have been done to elucidate charge dynamics of QDs and improve hybrid device performance are summarised and discussed in detail. Finally, an outlook is presented considering current existing challenges in HSCs.

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Hybrid solution-processed bulk heterojunction solar cells based on bismuth sulfide nanocrystals

Cited by 43 publications

References 33 publications

Spin-coated planar Sb₂S₃ hybrid solar cells approaching 5% efficiency

Spin-coated planar Sb₂S₃ hybrid solar cells approaching 5% efficiency

Colloidal Bi₂S₃Nanocrystals: Quantum Size Effects and Midgap States

Inorganic Quantum Dot Materials and their Applications in “Organic” Hybrid Solar Cells

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Hybrid solution-processed bulk heterojunction solar cells based on bismuth sulfide nanocrystals

Cited by 43 publications

References 33 publications

Spin-coated planar Sb2S3 hybrid solar cells approaching 5% efficiency

Spin-coated planar Sb2S3 hybrid solar cells approaching 5% efficiency

Colloidal Bi2S3Nanocrystals: Quantum Size Effects and Midgap States

Inorganic Quantum Dot Materials and their Applications in “Organic” Hybrid Solar Cells

Contact Info

Product

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Spin-coated planar Sb₂S₃ hybrid solar cells approaching 5% efficiency

Spin-coated planar Sb₂S₃ hybrid solar cells approaching 5% efficiency

Colloidal Bi₂S₃Nanocrystals: Quantum Size Effects and Midgap States