Ruddlesden-Popper perovskite sulfides A3B2S7: A new family of ferroelectric photovoltaic materials for the visible spectrum
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- 作者：Hua WangaAuthor Vitae ; Gaoyang Goua ; gougaoyang@mail.xjtu.edu.cn" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Ju Lia ; b ; c ; liju@mit.edu" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Perovskite solar cells ; Ferroelectric photovoltaics ; First-principles calculations ; Direct-bandgap optical absorption ; Hybrid improper ferroelectrics
- 刊名：Nano Energy
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：22
- 期：Complete
- 页码：507-513
- 全文大小：1181 K
文摘
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Demonstrate the ferroelectricity in perovskite sulfides for the first time.
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Propose a new strategy for designing the stoichiometric ferroelectric–photovoltaic materials.
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Ferroelectric Ca3Zr2S7 is predicted to have large visible-light absorption coefficients exceeding that of Si.