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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 19일 (목요일) 11:00~12:30 |
| Code |
MAT.P-416 |
| Subject |
Co-catalyst Modified Si-based Photo electrode Materials for Solar Water Splitting |
| Authors |
SuYoung Lee, jeunghee park1,*, eunhee cha2,*
Deapartment Green Energy Engineering, Hoseo University, Korea
1Department of Materials Chemistry, Korea University, Korea
2Department of Pharmaceutics, Hoseo University, Korea
|
| Abstract |
Photoelectrochemical (PEC) water splitting is a highly controlled approach that converts sunlight into clean, preserved hydrogen and oxygen. Photoelectrode consists mainly of two parts: light absorber and other is the cocatalyst. Si, having band gap of 1.1 eV poses suitable band alignment for H2 evolution. Being the earth abundant semiconductor it is explored as an efficient light absorber material from past. However, stability and slow surface reactions limit the actual application of the material. Other important part in PEC cell is suitable cocatalyst, which helps in faster charge carrier transportation from semiconductor surface to electrolyte. In this regards, NiSe2 and CoSe2 are getting explored as efficient and stable material. In the present work, we developed CoSe2 and NiSe2 coupled with a Si nanowire array that acts as a promising bifunctional photoelectrode in the solar-driven water-splitting reaction. |
| E-mail |
holhol123456@naver.com |
|
120th General Meeting of the KCS