期刊
SMALL
卷 15, 期 19, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201900730
关键词
graphene assisted; hydrophilic-hydrophobic surface; optical image sensor; patterned growth; perovskite film
类别
资金
- Natural Science Foundation of China (NSFC) [61575059, 61675062, 21501038]
- Fundamental Research Funds for the Central Universities [JZ2018HGPB0275, JZ2018HGTA0220, JZ2018HGXC0001]
- National College Students' innovation and entrepreneurship training program [201710359060]
Controlled growth of high-quality patterned perovskite films on a large scale is essentially required for the application of this class of materials in functional integrated devices and systems. Herein, graphene-assisted hydrophilic-hydrophobic surface-induced growth of Cs-doped FAPbI(3) perovskite films with well-patterned shapes by a one-step spin-coating process is developed. Such a facile fabrication technique is compatible with a range of spin-coated perovskite materials, perovskite manufacturing processes, and substrates. By employing this growing method, controllable perovskite photodetector arrays are realized, which have not only prominent photoresponse properties with a responsivity and specific detectivity of 4.8 AW(-1) and 4.2 x 10(12) Jones, respectively, but also relatively small pixel-to-pixel variation. Moreover, the photodetectors array can function as an effective visible light image sensor with a decent spatial resolution. Holding the above merits, the proposed technique provides a convenient and effective pathway for large-scale preparation of patterned perovskite films for multifunctional application purposes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据