碲纳米颗粒的声化学合成、形成机理及太阳能电池应用

Sonochemical synthesis, formation mechanism, and solar cell application of tellurium nanoparticles.

作者信息

Mousavi-Kamazani Mehdi, Rahmatolahzadeh Reza, Amin Shobeiri Seyed, Beshkar Farshad

机构信息

Young Researchers and Elites Club, Arak Branch, Islamic Azad University, Arak, Iran.

Young Researchers and Elites Club, Central Tehran Branch, Islamic Azad University, Tehran, Iran.

出版信息

Ultrason Sonochem. 2017 Nov;39:233-239. doi: 10.1016/j.ultsonch.2017.04.031. Epub 2017 Apr 23.

DOI:10.1016/j.ultsonch.2017.04.031

PMID:28732940

Abstract

Tellurium inherently tends to form 1-D structures and while the 0-D Te nanostructures have better properties and applications in solar cell. In the present study, 0-D Te nanostructures including rice-like and spherical nanoparticles with the particle size of 15-40nm were successfully synthesized via a facile sonochemical method. In the absence of ultrasonic irradiation nanorods were produced while performing the reaction under ultrasonic waves (at 200W for 30min) led to the formation of nanoparticles. Finally, the efficiency of various as-synthesized Te nanostructures in quantum dot-sensitized solar cells (QDSSCs) were evaluated. Using rice-like nanoparticles led to increase in J, V, FF and η parameters from 1.22, 0.54, 0.49 and 0.32% to 1.57, 0.64, 0.63 and 0.63%, respectively, compared with nanorods.

摘要

碲本身倾向于形成一维结构，而零维碲纳米结构在太阳能电池中具有更好的性能和应用。在本研究中，通过一种简便的声化学方法成功合成了粒径为15 - 40nm的零维碲纳米结构，包括米状和球形纳米颗粒。在没有超声辐射的情况下会生成纳米棒，而在超声波（200W，30分钟）作用下进行反应则会导致纳米颗粒的形成。最后，评估了各种合成的碲纳米结构在量子点敏化太阳能电池（QDSSCs）中的效率。与纳米棒相比，使用米状纳米颗粒使J、V、FF和η参数分别从1.22%、0.54%、0.49%和0.32%提高到1.57%、0.64%、0.63%和0.63%。