Login / Signup

Pressure-Enhanced Photocurrent in One-Dimensional SbSI via Lone-Pair Electron Reconfiguration.

Tianbiao LiuKejun BuQian ZhangPeijie ZhangSonghao GuoJiayuan LiangBihan WangHaiyan ZhengYonggang WangWenge YangXujie Lü
Published in: Materials (Basel, Switzerland) (2022)
Understanding the relationships between the local structures and physical properties of low-dimensional ferroelectrics is of both fundamental and practical importance. Here, pressure-induced enhancement in the photocurrent of SbSI is observed by using pressure to regulate the lone-pair electrons (LPEs). The reconfiguration of LPEs under pressure leads to the inversion symmetry broken in the crystal structure and an optimum bandgap according to the Shockley-Queisser limit. The increased polarization caused by the stereochemical expression of LPEs results in a significantly enhanced photocurrent at 14 GPa. Our research enriches the foundational understanding of structure-property relationships by regulating the stereochemical role of LPEs and offers a distinctive approach to the design of ferroelectric-photovoltaic materials.
Keyphrases
  • crystal structure
  • poor prognosis
  • mental health
  • magnetic resonance
  • computed tomography
  • high glucose
  • long non coding rna