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팽성환(Sung-Hwan Paeng),최우진(Woo-Jin Choi),곽동주(Dong-Joo Kwak),성열문(Youl-Moon Sung) 한국조명·전기설비학회 2010 한국조명·전기설비학회 학술대회논문집 Vol.2010 No.9월
Transparent conductive metal oxide films of In<SUB>2-x</SUB>Ti<SUB>x</SUB>O₃ (ITiO) and In<SUB>2-x</SUB>Sn<SUB>x</SUB>O₃ (ITO) were deposited by RF magnetron sputtering at substrate temperature of 300℃ and at high rate (~10㎚/min). Electrical and optical properties of the films were investigated as well as film structure and morphology, as it is compared with the commercial F:SnO₂ (FTO) glass. Near infrared ray transmittance of ITiO is the highest for wavelengths over 1000㎚, which can increase dye sensitized compared to ITiO and FTO. Dye-sensitized solar cells (DSCs) were fabricated using the ITiO, ITO and FTO. Photoconversion efficiency (?) of DSC using ITiO is 5.5%. whereas 5.0% is obtained from DSC with ITO. both at 100 ㎽/㎠ light intensity.
팽성환(Sung-Hwan Paeng),곽동주(Dong-Joo Kwak),성열문(Youl-Moon Sung),이명희(Myung-Hee Lee) 한국조명·전기설비학회 2010 한국조명·전기설비학회 학술대회논문집 Vol.2010 No.5월
In this study, SUS-Mesh replaced high-cost transparent conductive oxide (TCO) layer. To improve conversion-efficiency of dye-sensitized solar cells (DSCs), SUS-Mesh was also coated with Al2O₃ and SiO₂. In result, the conversion-efficiency of DSC coated with Al₂O₃ by sol-gel method was 1.68% (Jsc:9.27㎃/㎠, Voc:0.73V, ff:0.24). This result had higher efficiency (0.3%) than non-coated DSC. The short-circuit current density (Jsc) also improved considerably, however, the DSC coated with Al₂O₃ by sol-gel had low fill factor.
RF 스퍼터링에 의한 ITiO 박막 제작과 태양전지에의 응용
팽성환(Sung-Hwan Paeng),곽동주(Dong-Joo Kwak),성열문(Youl-Moon Sung),이돈규(Don-Kyu Lee) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
Transparent conductive metal oxide films of In<SUB>2-x</SUB>Ti<SUB>x</SUB>O₃ (ITiO) and In<SUB>2-x</SUB>Sn<SUB>x</SUB>O₃ (ITO) were deposited by RF magnetron sputtering at relatively low substrate temperature (~300℃) and at high rate (~10㎚/min). Electrical and optical properties of the films were investigated as well as film structure and morphology, as it is compared with the commercial F:SnO₂ (FTO) glass. Near infrared ray transmittance of ITiO is the highest for wavelengths over 1000㎚, which can increase dye sensitized compared to ITiO and FTO. Dye-sensitized solar cells (DSCs) were fabricated using the ITiO, ITO and FTO. Photoconversion efficiency (η) of DSC using ITiO is 5.5%, whereas 5.0% is obtained from DSC with ITO, both at 100 ㎽/㎠ light intensity.
권혁문(Hyuk-Moon Kwon),곽동주(Dong-Joo Kwak),박민우(Min-Woo Park),성열문(Youl-Moon Sung) 한국조명·전기설비학회 2010 한국조명·전기설비학회 학술대회논문집 Vol.2010 No.5월
본 연구에서는 DSCs 제작시 고가의 TCO전극을 사용하지 않고, Ti plate와 SUS plate를 작업전극으로 대체하여 DSCs를 제작하였다. Ti plate와 SUS plate를 작업전극을 제작한 샘플은 Jsc 및 효율에서 큰 차이를 보였지만, 상대전극으로 사용시 큰 차이가 없었다. 이는 백금을 코팅한 상대전극에서 빛이 반사되어, 입사되는 빛의 양이 줄어들었기때문에 Jsc 및 효율이 낮게 나온것으로 판단되었다. 향후 FTO glass에 백금을 스퍼터링하여 투명도를 조절하는 실험이 필요할 것으로 보인다.