当前位置: X-MOL 学术Mater. Lett. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Crystal facet engineering of single-crystalline anatase TiO2 nanosheets with exposing dominate (010)-facet
Materials Letters ( IF 3 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.matlet.2020.127354
S. Nithiananth , S. Harish , J. Archana , M. Navaneethan , M. Shimomura

Abstract While most anatase TiO2 crystals reported were in the form of nanoparticle, herein the tuneable and controlled (0 1 0)-faceted anatase phase were grown directly onto a conductive substrate. F− ions provided by addition of ammonium hexafluorotitanate (AHFT) play a synergistic effect in the crystals phase changed from rutile to anatase during crystal growth with low-index facets. The morphological transformation from vertically-aligned rutile-nanorods to highly crystalline anatase-nanosheets bounded with the most significant percentage of (0 0 1) facets with the effect of F− ions. At higher concentration of AHFT dominate the (0 1 0)-faceted anatase TiO2 with suppression of (0 0 1) facets of nanosheets (side length of 1.4 µm), which can suppress the charge recombination for an electron transport layer in solar cell applications, and thus, efficient charge transportation can be achieved compared to nanoparticles.

中文翻译:

单晶锐钛矿TiO2纳米片的晶面工程,具有暴露的主导(010)面

摘要 虽然报道的大多数锐钛矿 TiO2 晶体都是纳米颗粒的形式,但在本文中,可调谐和受控的 (0 1 0) 多面锐钛矿相直接生长在导电基材上。通过添加六氟钛酸铵 (AHFT) 提供的 F- 离子在具有低指数面的晶体生长过程中从金红石转变为锐钛矿的晶体相中发挥协同作用。从垂直排列的金红石纳米棒到高度结晶的锐钛矿纳米片的形态转变与最显着百分比的 (0 0 1) 面结合,受 F- 离子的影响。在较高浓度的 AHFT 下,(0 1 0) 面锐钛矿 TiO2 占主导地位,并抑制了纳米片的 (0 0 1) 面(边长为 1.4 µm),这可以抑制太阳能电池应用中电子传输层的电荷复合, 因此,
更新日期:2020-04-01
down
wechat
bug