Skip to main content
Journal cover image

Dual-source evaporation of silver bismuth iodide films for planar junction solar cells

Publication ,  Journal Article
Khazaee, M; Sardashti, K; Chung, CC; Sun, JP; Zhou, H; Bergmann, E; Dunlap-Shohl, WA; Han, Q; Hill, IG; Jones, JL; Lupascu, DC; Mitzi, DB
Published in: Journal of Materials Chemistry A
January 1, 2019

Non-toxic and air-stable silver bismuth iodide semiconductors are promising light absorber candidates for photovoltaic applications owing to a suitable band gap for multi- or single-junction solar cells. Recently, solution-based film fabrication approaches for several silver bismuth iodide stoichiometries have been investigated. The current work reports on a facile and reproducible two-step coevaporation/annealing approach to deposit compact and pinhole-free films of AgBi 2 I 7 , AgBiI 4 and Ag 2 BiI 5 . X-ray diffraction (XRD) in combination with scanning electron microscopy (SEM)/energy-dispersive X-ray spectroscopy (EDX) analysis reveals formation of pure cubic (Fd3m) phase AgBi 2 I 7 , cubic (Fd3m) or rhombohedra (R3m) phase AgBiI 4 , each with >3 μm average grain size, or the rhombohedral phase (R3m) Ag 2 BiI 5 with >200 nm average grain size. A phase transition from rhombohedral to cubic structure is investigated via temperature-dependent X-ray diffraction (TD-XRD). Planar-junction photovoltaic (PV) devices are prepared based on the coevaporated rhombohedral AgBiI 4 films, with titanium dioxide (TiO 2 ) and poly(3-hexylthiophene) (P3HT) as electron- and hole-transport layers, respectively. The best-performing device exhibited a power conversion efficiency (PCE) of as high as 0.9% with open-circuit voltage (V OC ) > 0.8 V in the reverse scan direction (with significant hysteresis).

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Journal of Materials Chemistry A

DOI

EISSN

2050-7496

ISSN

2050-7488

Publication Date

January 1, 2019

Volume

7

Issue

5

Start / End Page

2095 / 2105

Related Subject Headings

  • 4016 Materials engineering
  • 4004 Chemical engineering
  • 3403 Macromolecular and materials chemistry
  • 0915 Interdisciplinary Engineering
  • 0912 Materials Engineering
  • 0303 Macromolecular and Materials Chemistry
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Khazaee, M., Sardashti, K., Chung, C. C., Sun, J. P., Zhou, H., Bergmann, E., … Mitzi, D. B. (2019). Dual-source evaporation of silver bismuth iodide films for planar junction solar cells. Journal of Materials Chemistry A, 7(5), 2095–2105. https://doi.org/10.1039/c8ta08679f
Khazaee, M., K. Sardashti, C. C. Chung, J. P. Sun, H. Zhou, E. Bergmann, W. A. Dunlap-Shohl, et al. “Dual-source evaporation of silver bismuth iodide films for planar junction solar cells.” Journal of Materials Chemistry A 7, no. 5 (January 1, 2019): 2095–2105. https://doi.org/10.1039/c8ta08679f.
Khazaee M, Sardashti K, Chung CC, Sun JP, Zhou H, Bergmann E, et al. Dual-source evaporation of silver bismuth iodide films for planar junction solar cells. Journal of Materials Chemistry A. 2019 Jan 1;7(5):2095–105.
Khazaee, M., et al. “Dual-source evaporation of silver bismuth iodide films for planar junction solar cells.” Journal of Materials Chemistry A, vol. 7, no. 5, Jan. 2019, pp. 2095–105. Scopus, doi:10.1039/c8ta08679f.
Khazaee M, Sardashti K, Chung CC, Sun JP, Zhou H, Bergmann E, Dunlap-Shohl WA, Han Q, Hill IG, Jones JL, Lupascu DC, Mitzi DB. Dual-source evaporation of silver bismuth iodide films for planar junction solar cells. Journal of Materials Chemistry A. 2019 Jan 1;7(5):2095–2105.
Journal cover image

Published In

Journal of Materials Chemistry A

DOI

EISSN

2050-7496

ISSN

2050-7488

Publication Date

January 1, 2019

Volume

7

Issue

5

Start / End Page

2095 / 2105

Related Subject Headings

  • 4016 Materials engineering
  • 4004 Chemical engineering
  • 3403 Macromolecular and materials chemistry
  • 0915 Interdisciplinary Engineering
  • 0912 Materials Engineering
  • 0303 Macromolecular and Materials Chemistry