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DOI | 10.1126/science.aan3256 |
Flexo-photovoltaic effect | |
Yang, Ming-Min; Kim, Dong Jik; Alexe, Marin | |
2018-05-25 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 360期号:6391页码:904-907 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | It is highly desirable to discover photovoltaic mechanisms that enable enhanced efficiency of solar cells. Here we report that the bulk photovoltaic effect, which is free from the thermodynamic Shockley-Queisser limit but usually manifested only in noncentrosymmetric (piezoelectric or ferroelectric) materials, can be realized in any semiconductor, including silicon, by mediation of flexoelectric effect. We used either an atomic force microscope or a micrometer-scale indentation system to introduce strain gradients, thus creating very large photovoltaic currents from centrosymmetric single crystals of strontium titanate, titanium dioxide, and silicon. This strain gradient-induced bulk photovoltaic effect, which we call the flexo-photovoltaic effect, functions in the absence of a p-n junction. This finding may extend present solar cell technologies by boosting the solar energy conversion efficiency from a wide pool of established semiconductors. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000433039800047 |
WOS关键词 | SOLAR-CELLS ; POLARIZATION ; EFFICIENCY ; CRYSTALS ; LIMIT |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/198750 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England |
推荐引用方式 GB/T 7714 | Yang, Ming-Min,Kim, Dong Jik,Alexe, Marin. Flexo-photovoltaic effect[J]. SCIENCE,2018,360(6391):904-907. |
APA | Yang, Ming-Min,Kim, Dong Jik,&Alexe, Marin.(2018).Flexo-photovoltaic effect.SCIENCE,360(6391),904-907. |
MLA | Yang, Ming-Min,et al."Flexo-photovoltaic effect".SCIENCE 360.6391(2018):904-907. |
条目包含的文件 | 条目无相关文件。 |
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