Patterning and photoluminescence of CdS nanocrystallites on silk fibroin fiber
Patterning and photoluminescence of CdS nanocrystallites on silk fibroin fiber
复制标题
丝素蛋白纤维上 CdS 纳米晶的图案化和光致发光
DOI：
10.1007/s11051-009-9622-1
复制
发表时间：
2010-01-01
影响因子：
2.5
通讯作者：
Zhang, Chunfu
中科院分区：
文献类型：
--
作者：
Han, Jie;Su, Huilan;Zhang, Chunfu
通过室温仿生过程，CdS 纳米微晶可以在天然丝素蛋白纤维 (SFF) 上形成并组装成纳米粒子串和六边形。在此，生物材料SFF作为反应基质，不仅为CdS纳米晶提供原位形成位点，而且同时指导纳米晶CdS的排列。由此产生的 CdS/SFF 纳米复合材料的光致发光 (PL) 得到了广泛的研究。从 CdS 纳米颗粒串观察到的 PL 峰与单独的 CdS 纳米颗粒的 PL 峰相似，对应于其各个构建块 (QD-CdS) 的带边发射。此外，CdS 纳米粒子六边形具有红移和展宽的发射峰。
CdS nanocrystallites could be formed and assembled into nanoparticle strings and hexagons on natural silk fibroin fiber (SFF) through a room-temperature bio-inspired process. Herein, the biomaterial SFF served as reactive substrate, not only provides the in situ formation sites for CdS nanocrystallites, but also directs the arrangement of nanocrystalline CdS simultaneously. The photoluminescence (PL) of the resulting nanocomposites CdS/SFF is investigated extensively. The PL peaks observed from CdS nanoparticle strings are similar to those of separate CdS nanoparticles, corresponding to the band-edge emission of their individual building blocks (QD-CdS). Moreover, CdS nanoparticle hexagons perform a red-shifted and broadened emission peak.