Electronic structure and photovoltaic application of BiI{sub 3}

Journal Article · Mon Sep 28 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4932129· OSTI ID:22482158

Wang, Hengbin ^[1]; Fabini, Douglas H. ^[2]; Liman, Christopher D.; Perry, Erin E.; Chabinyc, Michael L. ^[1]; Hébert, Claire-Alice ^[2]; Wang, Ming ^[1]; Bazan, Guillermo C. ^[1]; others, and

---

1. Mitsubishi Chemical Center for Advanced Materials, University of California, Santa Barbara, California 93106 (United States)
2. Materials Research Laboratory, University of California, Santa Barbara, California 93106 (United States)

Rapid recent improvement in photovoltaic efficiency in hybrid lead halide perovskite materials has provided the impetus for understanding other, related main-group halide systems. Here, we show that the closely related but less toxic bismuth iodide BiI{sub 3} can show promising optoelectronic properties. Layered binary BiI{sub 3} is used here as the active layer in planar solar cell architectures (efficiency approximately 0.3%). Experimental and computational studies of absolute band positions of BiI{sub 3} are also presented, to help in the rational design of device architectures that would allow efficient charge transfer at the interfaces.

• OSTI ID: 22482158
• Journal Information: Applied Physics Letters, Vol. 107, Issue 13; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
BISMUTH IODIDES
ELECTRONIC STRUCTURE
LEAD HALIDES
MATERIALS
PEROVSKITE
PHOTOVOLTAIC EFFECT
SOLAR CELLS
TOXICITY