在温和的反应条件下形成的 Sb2S3 单晶纳米棒的海胆状纳米结构。

Urchinlike nanostructure of single-crystalline nanorods of Sb2S3 formed at mild reaction condition.

机构信息

Solar Energy Materials Research Group, Division of Advanced Materials, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong, Daejeon.

出版信息

ACS Appl Mater Interfaces. 2012 Sep 26;4(9):4787-91. doi: 10.1021/am301141q. Epub 2012 Aug 21.

DOI:10.1021/am301141q

PMID:22869461

Abstract

Urchinlike nanostructure of well-defined Sb(2)S(3) crystals of 3-4 μm in length and 30-150 nm in diameter oriented along [001] direction have been produced at a mild reaction temperature of 90 °C from SbCl(3) and S-methyl 3-phenyldithiocarbazate [C(6)H(5)NHNHC(S)SMe] in ethylene glycol medium. During the reaction, the amorphous Sb(2)S(3) spheres of 1.4 μm in diameter were formed at early reaction stage and then crystalline nanorods were continuously grown at the surface of Sb(2)S(3) spheres while transforming their morphology into urchinlike structure. The urchinlike Sb(2)S(3) was composed of single-crystalline Sb(2)S(3) nanorods, belong to the orthorhombic phase with cell parameters a = 11.307 Å, b = 11.278 Å, c = 3.847 Å and absorbed the light up to 750 nm-wavelength region. The urchinlike Sb(2)S(3) architecture was applied to the photoelectrochemical cell.

摘要

长度为 3-4μm、直径为 30-150nm、沿[001]方向取向的 Sb(2)S(3)晶体具有规则的海胆状纳米结构，是在温和的 90°C 反应温度下，由 SbCl(3)和 S-甲基 3-苯并二硫代卡巴腙[C(6)H(5)NHNHC(S)SMe]在乙二醇介质中制备得到的。在反应过程中，在早期反应阶段形成了 1.4μm 直径的无定形 Sb(2)S(3)球体，然后在 Sb(2)S(3)球体的表面上连续生长出结晶纳米棒，同时将其形态转变为海胆状结构。海胆状 Sb(2)S(3)由单晶 Sb(2)S(3)纳米棒组成，属于正交相，晶胞参数为 a = 11.307 Å, b = 11.278 Å, c = 3.847 Å，可以吸收长达 750nm 波长的光。这种海胆状 Sb(2)S(3)结构被应用于光电化学电池。