SnSe(2) Quantum Dots: Facile Fabrication and Application in Highly Responsive UV-Detectors

Synthesizing quantum dots (QDs) using simple methods and utilizing them in optoelectronic devices are active areas of research. In this paper, we fabricated SnSe(2) QDs via sonication and a laser ablation process. Deionized water was used as a solvent, and there were no organic chemicals introduced...

Descripción completa

Detalles Bibliográficos
Autores principales: Li, Xiangyang, Li, Ling, Zhao, Huancheng, Ruan, Shuangchen, Zhang, Wenfei, Yan, Peiguang, Sun, Zhenhua, Liang, Huawei, Tao, Keyu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6781088/
https://www.ncbi.nlm.nih.gov/pubmed/31540172
http://dx.doi.org/10.3390/nano9091324
Descripción
Sumario:Synthesizing quantum dots (QDs) using simple methods and utilizing them in optoelectronic devices are active areas of research. In this paper, we fabricated SnSe(2) QDs via sonication and a laser ablation process. Deionized water was used as a solvent, and there were no organic chemicals introduced in the process. It was a facile and environmentally-friendly method. We demonstrated an ultraviolet (UV)-detector based on monolayer graphene and SnSe(2) QDs. The photoresponsivity of the detector was up to 7.5 × 10(6) mAW(−1), and the photoresponse time was ~0.31 s. The n–n heterostructures between monolayer graphene and SnSe(2) QDs improved the light absorption and the transportation of photocarriers, which could greatly increase the photoresponsivity of the device.

Ejemplares similares