Issue 18, 2016

Hybrid organic–inorganic solar cells based on bismuth iodide and 1,6-hexanediammonium dication

Abstract

Heavy metal toxicity and device instability are prominent limitations in the push for commercialization of photovoltaics based on low-cost, solution-processed materials. In this study, a hybrid organic–inorganic material containing trivalent bismuth and dicationic 1,6-hexanediammonium was used as the photoactive layer in solution-processed photovoltaics. These proof-of-concept photovoltaics demonstrated a stable open-circuit photovoltage of 384 ± 12 mV and steady-state short-circuit photocurrent density of 0.101 ± 0.020 mA cm−2. In comparison to the widely studied lead-halide-based perovskites, the bismuth-based materials had superior coverage on mesoporous TiO2 layers as determined by scanning electron microscopy. Moreover, thermal stability tests demonstrated that these bismuth-based materials were more stable at higher temperatures than comparable lead-based materials.

Graphical abstract: Hybrid organic–inorganic solar cells based on bismuth iodide and 1,6-hexanediammonium dication

Supplementary files

Article information

Article type
Communication
Submitted
19 Қаң. 2016
Accepted
01 Нау. 2016
First published
02 Нау. 2016

J. Mater. Chem. A, 2016,4, 6837-6841

Hybrid organic–inorganic solar cells based on bismuth iodide and 1,6-hexanediammonium dication

D. M. Fabian and S. Ardo, J. Mater. Chem. A, 2016, 4, 6837 DOI: 10.1039/C6TA00517A

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