Computational and Experimental Study on Electronic Band Structure of Bismuth Ferrite: A Promising Visible Light Photocatalyst

• 발행기관: 한국세라믹학회
• 저자명: G Thamizharasan Eithiraj R.D Enhbayar Enhtuwshin So Jung Kim Niroj Kumar Sahu Arpan Kumar Nayak HyukSu Han
• 간행물 정보: 『세라미스트』제23권 제4호, 350~357쪽, 전체 8쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2020.12.30

영문 초록

Electronic band structure of bismuth ferrite (BFO) is studied by computational and experimental methods. Bandgap of BFO is precisely determined using optical absorption spectra as well as density functional calculation (DFT). Both methods give a comparable result that BFO can have both of direct or indirect (very close to direct) bandgap of about 2.0~2.2 eV. Furthermore, electronic transition in BFO occurs via the unoccupied O 2p to the occupied Fe 3d states or the d-d transition in Fe 3d states. Intriguing electronic structure of BFO, a narrow bandgap and a multiple electronic transition route, render it as a promising candidate for a visible light photocatalyst.

목차

Introduction

Experimental Procedures

Result and Discussions

Conclusion

Data accessibility

Author contributions

Competing interest

Research ethics

Animal ethics

Permission to carry out fieldwork

Funding

Acknowledgments

References

키워드

Bismuth ferrite semiconductor photocatalyst water splitting