Solar Cell Based on Hybrid Structural SiNW/Poly(3,4 ethylenedioxythiophene): Poly(styrenesulfonate)/Graphene

Nguyen Ngoc Anh; Nguyen Van Chuc; Bui Hung Thang; Pham Van Nhat; NguyenVan Hao; Doan Dinh Phuong; Phan Ngoc Minh; Thiyagu Subramani; Naoki Fukata; Pham Van Trinh

doi:10.1002/gch2.202000010

Solar Cell Based on Hybrid Structural SiNW/Poly(3,4 ethylenedioxythiophene): Poly(styrenesulfonate)/Graphene

Glob Chall. 2020 May 17;4(9):2000010. doi: 10.1002/gch2.202000010. eCollection 2020 Sep.

Authors

Nguyen Ngoc Anh¹, Nguyen Van Chuc^{1

2}, Bui Hung Thang^{1

2}, Pham Van Nhat³, NguyenVan Hao⁴, Doan Dinh Phuong^{1

2}, Phan Ngoc Minh², Thiyagu Subramani⁵, Naoki Fukata⁵, Pham Van Trinh^{1

2}

Affiliations

¹ Institute of Materials Science Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Str., Cau Giay Hanoi 10000 Vietnam.
² Graduate University of Science and Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Str., Cau Giay Hanoi 10000 Vietnam.
³ University of Science and Technology of Hanoi Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Str., Cau Giay Hanoi 10000 Vietnam.
⁴ Faculty of Physics and Technology TNU-University of Sciences Tan Thinh Ward Thai Nguyen 24000 Vietnam.
⁵ International Center for Materials Nanoarchitectonics National Institute for Materials Science 1-1 Namiki Tsukuba Ibaraki 305-0044 Japan.

Abstract

Solar energy is considered as a potential alternative energy source. The solar cell is classified into three main types: i) solar cells based on bulk silicon materials (monocrystalline, polycrystalline), ii) thin-film solar cells (CIGS, CdTe, DSSC, etc.), and iii) solar cells based on nanostructures and nanomaterials. Nowadays, commercial solar cells are usually made by bulk silicon material, which requires not only high fabrication costs but also limited performance. In this study, the fabrication of high-performance solar cells based on hybrid structure of silicon nanowires/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/graphene (SiNW/PEDOT:PSS/Gr) is focused upon. SiNWs with different lengths of 125, 400, 800 nm, and 2 µm are fabricated by a metal-assisted chemical etching method, and their influence on the performance of the hybrid solar cells is studied and investigated. The experimental results indicate that the suitable SiNW length for the fabrication of the hybrid solar cells is about 400 nm and the best power conversion efficiency obtained is about 9.05%, which is about 2.1 times higher than that of the planar Si solar cell.

Keywords: PEDOT:PSS; conversion efficiencies; hybrid solar cells; silicon nanowires.