In this study, we prepare pure WO3 inverse opal(IO) film with a thickness of approximately 3 μm by electrodeposition, and an ultra-thin TiO2 layer having a thickness of 2 nm is deposited on WO3 IO film by atomic layer deposition. Both sets of photoelectrochemical properties are evaluated after developing dye-sensitized solar cells(DSSCs). In addition, morphological, crystalline and optical properties of the developed films are evaluated through field-emission scanning electron microscopy(FE-SEM), High-resolution transmission electron microscopy(HR-TEM), X-ray diffraction(XRD) and UV/ visible/infrared spectrophotometry. In particular, pure WO3 IO based DSSCs show low VOC, JSC and fill factor of 0.25 V, 0.89 mA/cm2 and 18.9 %, achieving an efficiency of 0.04 %, whereas the TiO2/WO3 IO based DSSCs exhibit VOC, JSC and fill factor of 0.57 V, 1.18 mA/cm2 and 50.1 %, revealing an overall conversion efficiency of 0.34 %, probably attributable to the high dye adsorption and suppressed charge recombination reaction.

Abstracts
1. 서 론
2. 실험 방법
    2.1 WO3 IO 박막 및 TiO2/WO3 IO 박막 합성
    2.2 염료 감응형 태양전지 제작
    2.3 광전극 및 염료감응형 태양전지의 특성 평가
3. 결과 및 고찰
4. 결 론
References

• Maheswari Arunachalam(전남대학교 화학과)
• 곽서의(과학영재학교 광주과학고등학교) | Seoui Kwag (Gwangju Science Academy For the Gifted)
• 이인호(과학영재학교 광주과학고등학교) | Inho Lee (Gwangju Science Academy For the Gifted)
• 김청수(전남대학교 화학교육과) | Chung Soo Kim (Department of Chemistry Education, Chonnam National University)
• 강순형(전남대학교 화학교육과) | Soon Hyung Kang (Department of Chemistry Education, Chonnam National University) Corresponding author
• 이상권(전남대학교 화학교육과) | Sang-Kwon Lee (Department of Chemistry Education, Chonnam National University)