Bandgap tuning of [KNbO3]1−x[BaCo1/2Nb1/2O3−δ]x ferroelectrics | |
Department | 固体润滑国家重点实验室 |
Yu LM(于丽敏)1,2; Jia JH(贾均红)1; Yi GW(易戈文)1; Shan Y(陕钰)1; Han MM(韩敏敏)1,2; Jia JH(贾均红) | |
2016 | |
Source Publication | Materials Letters |
ISSN | 0167-577X |
Volume | 184Pages:166-168 |
Abstract | Ferroelectric perovskite oxides [KNbO3]1−x[BaCo1/2Nb1/2O3−δ]x(KBCNO, δ>0 means the existence of oxygen vacancies) solid solutions (0.1≤x≤0.5)were successfully synthesized by doping Co and Ba into the lattice of KNbO3 though solid-state reaction. The band gap energy of KBCNO shifts down to 2.4 eV and became visible-light-active due to the doping affection on the energy band structure comparing with that of wide-band-gap semiconductor KNbO3 (3.4 eV). The X-ray diffraction and Raman spectra revealed that the KBCNO solid solutions are in perovsite phase and gradually transiting from orthorhombic to cubic structure with the different BaCo1/2Nb1/2O3−δ (BCNO) contents. The reduction of band gap value makes KBCNO ferroelectric a promising candidate for photovoltaic materials. |
Keyword | Bandgap Engineering Perovskite Oxides Photovoltaic Materials Doping Effect |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.matlet.2016.08.044 |
Funding Organization | the National Natural Science Foundation of China (Grant no. 51471181;51575505) |
Indexed By | SCI |
If | 2.572 |
Language | 英语 |
Funding Project | 金属润滑材料研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/20483 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Jia JH(贾均红) |
Affiliation | 1.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000 PR China 2.University of Chinese Academy of Sciences, Beijing, 100039 PR China |
Recommended Citation GB/T 7714 | Yu LM,Jia JH,Yi GW,et al. Bandgap tuning of [KNbO3]1−x[BaCo1/2Nb1/2O3−δ]x ferroelectrics[J]. Materials Letters,2016,184:166-168. |
APA | Yu LM,Jia JH,Yi GW,Shan Y,Han MM,&贾均红.(2016).Bandgap tuning of [KNbO3]1−x[BaCo1/2Nb1/2O3−δ]x ferroelectrics.Materials Letters,184,166-168. |
MLA | Yu LM,et al."Bandgap tuning of [KNbO3]1−x[BaCo1/2Nb1/2O3−δ]x ferroelectrics".Materials Letters 184(2016):166-168. |
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2016 Materials Lette(660KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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