**Author details**

Indriana Kartini<sup>1</sup> \*, Inna Yusnila Khairani<sup>1</sup> , Chotimah<sup>2</sup> , Kuwat Triyana<sup>2</sup> and Sri Wahyuni3

\*Address all correspondence to: indriana@ugm.ac.id

1 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Yogyakarta, Indonesia

2 Physics Department, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Yogyakarta, Indonesia

3 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Semarang, Indonesia
