Impact of Bi3+ heterovalent doping in organic-inorganic metal halide perovskite crystals
Intrinsic organic-inorganic metal halide perovskites (OIHP) based semiconductors have shown wide applications in optoelectronic devices. There have been several attempts to incorporate heterovalent metal (e.g., Bi3+) ions in the perovskites in an attempt to induce electronic doping and increase the...
Gespeichert in:
| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2018
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| In: |
Journal of the American Chemical Society
Year: 2017, Jahrgang: 140, Heft: 2, Pages: 574-577 |
| ISSN: | 1520-5126 |
| DOI: | 10.1021/jacs.7b11125 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1021/jacs.7b11125
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| Verfasserangaben: | Pabitra K. Nayak, Michael Sendner, Bernard Wenger, Zhiping Wang, Kshama Sharma, Alexandra J. Ramadan, Robert Lovrinčić, Annemarie Pucci, P.K. Madhu, and Henry J. Snaith |
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| 245 | 1 | 0 | |a Impact of Bi3+ heterovalent doping in organic-inorganic metal halide perovskite crystals |c Pabitra K. Nayak, Michael Sendner, Bernard Wenger, Zhiping Wang, Kshama Sharma, Alexandra J. Ramadan, Robert Lovrinčić, Annemarie Pucci, P.K. Madhu, and Henry J. Snaith |
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| 520 | |a Intrinsic organic-inorganic metal halide perovskites (OIHP) based semiconductors have shown wide applications in optoelectronic devices. There have been several attempts to incorporate heterovalent metal (e.g., Bi3+) ions in the perovskites in an attempt to induce electronic doping and increase the charge carrier density in the semiconductor. It has been reported that inclusion of Bi3+ decreases the band gap of the material considerably. However, contrary to the earlier conclusions, despite a clear change in the appearance of the crystal as observed by eye, here we show that the band gap of MAPbBr3 crystals does not change due the presence of Bi3+ in the growth solution. An increased density of states in the band gap and use of very thick samples for transmission measurements, erroneously give the impression of a band gap shift. These sub band gap states also act as nonradiative recombination centers in the crystals. | ||
| 534 | |c 2017 | ||
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| 700 | 1 | |a Lovrinčić, Robert |e VerfasserIn |0 (DE-588)138299900 |0 (DE-627)601107594 |0 (DE-576)307080560 |4 aut | |
| 700 | 1 | |a Pucci, Annemarie |e VerfasserIn |0 (DE-588)1020648783 |0 (DE-627)691291969 |0 (DE-576)361698739 |4 aut | |
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