Etude du systeme AgIBiI3

Fourcroy, P. H.; Palazzi, M.; Rivet, J.; Flahaut, Jean; Céolin, R.

doi:10.1016/0025-5408(79)90096-5

Cited by 26 publications

(45 citation statements)

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“…The hole‐transport material P3HT protects the sample from degradation, which is clearly seen in the intensity difference of the diffraction peaks when comparing the samples with and without P3HT in Figure 1 d, e as well as in Figure f, g. The sample with the 2:1 molar ratio solution in Figure f matches very well a hexagonal (trigonal) structure with the space group R

\overset{3}{true}

m and cell parameters of a =4.350 Å and c =20.82 Å . The diffraction planes for the strongest diffraction peaks are marked in the Figure . The highest intensity comes from the (104) and (003) planes corresponding to a spacing of d= 3.06 Å and d= 6.97 Å, respectively.…”

Section: Figurementioning

confidence: 99%

High Photon‐to‐Current Conversion in Solar Cells Based on Light‐Absorbing Silver Bismuth Iodide

2017

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Here, a lead‐free silver bismuth iodide (AgI/BiI3) with a crystal structure with space group R true3‾ m is investigated for use in solar cells. Devices based on the silver bismuth iodide deposited from solution on top of TiO2 and the conducting polymer poly(3‐hexylthiophene‐2,5‐diyl) (P3HT) as a hole‐transport layer are prepared and the photovoltaic performance is very promising with a power conversion efficiency over 2 %, which is higher than the performance of previously reported bismuth‐halide materials for solar cells. Photocurrent generation is observed between 350 and 700 nm, and the maximum external quantum efficiency is around 45 %. The results are compared to solar cells based on the previously reported material AgBi2I7, and we observe a clearly higher performance for the devices with the new silver and bismuth iodides composition and different crystal structure. The X‐ray diffraction spectrum of the most efficient silver bismuth iodide material shows a hexagonal crystal structure with space group R true3‾ m, and from the light absorption spectrum we obtain an indirect band gap energy of 1.62 eV and a direct band gap energy of 1.85 eV. This report shows the possibility for finding new structures of metal‐halides efficient in solar cells and points out new directions for further exploration of lead‐free metal‐halide solar cells.

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Section: Figurementioning

confidence: 99%

High Photon‐to‐Current Conversion in Solar Cells Based on Light‐Absorbing Silver Bismuth Iodide

2017

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“…Die letztgenannte Verbindung erregte unser Interesse in Zusammenhang mit Untersuchungen zu nichtlinearen optischen Effekten in Systemen mit MI-BiI 3 (M ϭ Na-Cs, Cu, Ag, Tl). Es liegen zwei Berichte über das x-T-Diagramm des Systems AgI-BiI 3 [3,4] vor, die sich in wesentlichen Aussagen unterscheiden. So treten nach Fourcroy et al [3] ausschließlich inkongruent schmelzende Verbindungen auf.…”

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“…Es liegen zwei Berichte über das x-T-Diagramm des Systems AgI-BiI 3 [3,4] vor, die sich in wesentlichen Aussagen unterscheiden. So treten nach Fourcroy et al [3] ausschließlich inkongruent schmelzende Verbindungen auf. Anfänglich genannte Summenformeln wurden später revidiert und zeigen Übereinstimmung mit den von Dzeranova et al [4] ermittelten Zusammensetzungen.…”

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“…Anfänglich genannte Summenformeln wurden später revidiert und zeigen Übereinstimmung mit den von Dzeranova et al [4] ermittelten Zusammensetzungen. Danach werden die Verbindungen AgBiI 4 und Ag 3 BiI 6 im System AgI-BiI 3 beobachtet. Eigene thermoanalytische Untersuchungen bestätigen diese Ergebnisse und zeigen keine dystektisch schmelzende Verbindungen im Gegensatz zu [4].…”

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“…Wir haben in Kenntnis des thermischen Verhaltens die Solvothermalsynthese in verdünnter wässriger HI-Lösung zur Darstellung der Verbindungen gewählt. Auf diese Weise konnten wir die Verbindungen mit der Grenzformel AgBiI 4 und Ag 3 Tabelle 5 Lageparameter, Besetzungsfaktoren (sof) und Auslenkungsfaktoren U eq / Å 2 bzw. U sio / Å 2 von Ag 3 BiI 6 entsprechend U eq ϭ 1/3 Σ i Σ j U ij a i * a j * a i a j ; U iso entsprechend T iso (sinθ/λ) ϭ e Ϫ8πU iso (sin θ/λ) 2 .…”

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Solvothermale Synthese und Bestimmung der Kristallstrukturen von AgBiI₄ und Ag₃BiI₆

Oldag

Aussieker

Keller

et al. 2005

Zeitschrift anorg allge chemie

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Abstract. AgBiI 4 and Ag 3 BiI 6 were synthesized by solvothermal reaction from AgI and BiI 3 in diluted HI-solution (20 %) at a temperature of 160°C. The greyish-black crystals grow as octahedra (AgBiI 4 ) or hexagonal/trigonal platelets (Ag 3 BiI 6 ). AgBiI 4 crystallizes in space group Fd3m with a ϭ 1222.3(1) pm (300 K) and Z ϭ 8 whereas Ag 3 BiI 6 shows the space group R3m with a ϭ 435.37(6) pm, c ϭ 2081.0(4) pm (300 K) and Z ϭ 1. Both crystal structures show stacking sequence abcabc... of hexagonal layers containing Iodine. Bismuth and silver are sharing octahedral sites with different mass ratio in both structures.

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Rudorffites and Beyond: Perovskite‐Inspired Silver/Copper Pnictohalides for Next‐Generation Environmentally Friendly Photovoltaics and Optoelectronics

Chakraborty

Pai

Zhao

et al. 2022

Adv Funct Materials

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In the wake of lead-halide perovskite research, bismuth-and antimony-based perovskite-inspired semiconducting materials are attracting increasing attention as safer and potentially more robust alternatives to lead-based archetypes. Of particular interest are the group IB-group VA halide compositions with a generic formula A x B y X x+3y (A + = Cu + /Ag + ; B 3+ = Bi 3+ /Sb 3+ ; X -= I -/Br -), i.e., silver/copper pnictohalides and derivatives thereof. This family of materials forms 3D structures with much higher solar cell efficiencies and greater potential for indoor photovoltaics than the lower-dimensional bismuth/ antimony-based perovskite-inspired semiconductors. Furthermore, silver/ copper pnictohalides are being investigated for applications beyond photovoltaics, e.g., for photodetection, ionization radiation detection, memristors, and chemical sensors. Such versatility parallels the wide range of possible compositions and synthetic routes, which enable various structural, morphological, and optoelectronic properties. This manuscript surveys the growing research on silver/copper pnictohalides, highlighting their composition-structure-property relationships and the status and prospects of the photovoltaic and optoelectronic devices based thereon. The authors hope that the insights provided herein might accelerate the development of eco-friendly and stable perovskiteinspired materials for next-generation photovoltaics and optoelectronics.

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Etude du systeme AgIBiI3

Cited by 26 publications

References 4 publications

High Photon‐to‐Current Conversion in Solar Cells Based on Light‐Absorbing Silver Bismuth Iodide

High Photon‐to‐Current Conversion in Solar Cells Based on Light‐Absorbing Silver Bismuth Iodide

Solvothermale Synthese und Bestimmung der Kristallstrukturen von AgBiI₄ und Ag₃BiI₆

Rudorffites and Beyond: Perovskite‐Inspired Silver/Copper Pnictohalides for Next‐Generation Environmentally Friendly Photovoltaics and Optoelectronics

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Etude du systeme AgIBiI3

Cited by 26 publications

References 4 publications

High Photon‐to‐Current Conversion in Solar Cells Based on Light‐Absorbing Silver Bismuth Iodide

High Photon‐to‐Current Conversion in Solar Cells Based on Light‐Absorbing Silver Bismuth Iodide

Solvothermale Synthese und Bestimmung der Kristallstrukturen von AgBiI4 und Ag3BiI6

Rudorffites and Beyond: Perovskite‐Inspired Silver/Copper Pnictohalides for Next‐Generation Environmentally Friendly Photovoltaics and Optoelectronics

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Solvothermale Synthese und Bestimmung der Kristallstrukturen von AgBiI₄ und Ag₃BiI₆