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A new family of wurtzite-phase Cu₂ZnAS₄₋ₓ and CuZn₂AS₄ (A = Al, Ga, In) nanocrystals for solar energy conversion applications
- Ghosh, Anima, Palchoudhury, Soubantika, Thangavel, Rajalingam, Zhou, Ziyou, Naghibolashrafi, Nariman, Ramasamy, Karthik, Gupta, Arunava
- Chemical communications 2015 v.52 no.2 pp. 264-267
- absorption, aluminum, annealing, chemical reactions, energy conversion, nanocrystals, nitrogen, semiconductors, solar energy, wavelengths
- A new family of quaternary semiconductors Cu₂ZnAS₄₋ₓ and CuZn₂AS₄ (A = Al, Ga, In) has been synthesized in the form of wurtzite phase nanocrystals for the first time. The nanocrystals can be converted to the stannite phase via thermal annealing under a N₂ atmosphere. A direct band gap in the visible wavelength region combined with a high absorption cross-section makes these materials promising for solar energy conversion applications.