Faraco T A, Yoshioka N A, Sábio R M, Barud H da S, Maciel I O, Quirino W G, Fragneaud B, Aguiar A M de, Ribeiro S J L, Cremona M, Legnani C
Grupo de Nanociência e Nanotecnologia (NANO), Departamento de Física, Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora, MG, 36036-330, Brasil.
Laboratório de Optoeletrônica Molecular (LOEM), Departamento de Física, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ, 22453-970, Brasil.
Nanotechnology. 2021 May 14;32(20):205603. doi: 10.1088/1361-6528/abe4fd.
In this work, we synthesized colloidal silica nanospheres with an average size of 400 nm through the modified Stöber method and successfully fabricated an ordered close-packed silica nanosphere monolayer onto ITO-coated glass substrates using a three-step spin-coating method. ITO films showed resistivity comparable to that of commercial ITO and the silica nanosphere monolayer-coated ITO/glass substrate exhibited good optical transmittance in the visible (550 nm) and near-infrared (900 nm) regions of 62% and 82%, respectively. The results suggest that this monolayer can be used in optoelectronic devices to enhance efficiency in photovoltaic cells.
在本工作中，我们通过改进的斯托伯方法合成了平均尺寸为400 nm的胶体二氧化硅纳米球，并使用三步旋涂法成功地在涂有ITO的玻璃基板上制备了有序密堆积的二氧化硅纳米球单层。ITO薄膜显示出与商用ITO相当的电阻率，并且涂覆有二氧化硅纳米球单层的ITO/玻璃基板在可见光（550 nm）和近红外（900 nm）区域分别表现出62%和82%的良好光学透过率。结果表明，这种单层可用于光电器件中以提高光伏电池的效率。
