Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Characteristics of Dye-Sensitized Solar Cell Using Nb2O5 Semiconductor Oxides

Nb2O5 반도체 산화물을 이용한 염료 감응 태양전지 특성 연구

  • Kim, Haemaro (Dept. of Electrical Engineering, Dong-Eui University) ;
  • Lee, Don-Kyu (Dept. of Electrical Engineering, Dong-Eui University)
  • Received : 2019.03.08
  • Accepted : 2019.03.24
  • Published : 2019.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

Various studies on dye-sensitized solar cells, which are cheaper to manufacture and have superior stability than silicon solar cells, are continuously conducted. In this study, the properties of dye-sensitized solar cells were studied using semiconductor oxides made by mixing $TiO_2$ and $Nb_2O_5$. By adding $Nb_2O_5$ in different proportions, the solar cell was made, and the surface area and electrical characteristics of this cell were measured. As $Nb_2O_5$ was added, the contact area of dye and electrolyte increased and the short-circuit current, open voltage, fill factor and conversion efficiency of dye-sensitized solar cells were confirmed to be improved.

실리콘 태양전지와 비교해 제조비용이 저렴하고 뛰어난 안정성을 가지고 있는 염료 감응 태양전지에 관한 다양한 연구가 지속적으로 이루어지고 있다. 본 연구에서는 $TiO_2$와 $Nb_2O_5$을 혼합하여 만든 반도체 산화물을 사용하여 염료 감응 태양전지의 특성을 연구하였다. $Nb_2O_5$을 서로 다른 비율로 첨가하여 태양전지를 제작하였고, 이에 따른 표면적, 전기적 특성을 측정하였다. $Nb_2O_5$가 첨가될수록 염료 및 전해질의 접촉 면적이 증가하게 되었고, 이에 따라 염료 감응 태양전지의 단락 전류, 개방전압, 곡선인자 및 변환 효율이 개선됨을 확인하였다.

Keywords

JGGJB@_2019_v23n1_330_f0001.png 이미지

Fig. 1.TiO2-Nb2O5 Dye-Sensitized Solar Cell (DSSC). 그림 1. TiO2-Nb2O5 염료 감응 태양전지(DSSC)

JGGJB@_2019_v23n1_330_f0002.png 이미지

Fig. 2. SEM image depending on addition of Nb2O5. 그림 2. Nb2O5 첨가에 따른 SEM 이미지

JGGJB@_2019_v23n1_330_f0003.png 이미지

Fig. 3. XRD image depending on addition of Nb2O5. 그림 3. Nb2O5 첨가에 따른 XRD 이미지

JGGJB@_2019_v23n1_330_f0004.png 이미지

Fig. 4. I-V Characteristics curve depending on addition of Nb2O5. 그림 4. Nb2O5 첨가에 I-V 특성곡선

References

  1. Jae Hyeong Lee, "Current Status and Future Prospects of Solar Cells," Journal of the Korean Society for Precision Engineering, Vol. 25 No. 10, pp. 7-22.
  2. M. Gratzel, "Solar Energy Conversion by Dye- Sensitized Photovoltaic Cells," Inorg, Chem, 44(20), pp. 6841-6851, 2005. DOI: 10.1021/ic0508371
  3. D. Zhang, T. Yoshida, T. Oekermann, K. Furuta, H. Minoura, "Room-Temperature Synthesis of Porous Nanoparticulate $TiO_2$ Films for Flexible Dye-Sensitized Solar Cells," Adv. Funct Mater, Vol. 16, pp. 1228, 2006. DOI: 10.1002/adfm.200500700
  4. Hyunwoong Seo, Minkyu Son, Kyoungjun Lee, Jinju Jang, Jitae Hong, Heeje Kim, "The Characterisitc Analysis of the Dye-sensitized Solar Cells as the Change of Incident Angle," Journal of KSNRE, pp. 124-127, 2008.
  5. J. Xia, N. Masaki, K. Jiang, and S. Yangida, "Sputtered $Nb_2O_5$ as a Novel Blocking Layer at Conducting Glass/$TiO_2$ Interfaces in Dye-Sensitized Ionic Liquid Solar Cells," J.Phys. Chem. C, Vol. 111, pp. 8092-8097, 2007. DOI: 10.1021/jp0707384
  6. B. Kos'cielska, "Electrical conductivity of NbN - .SiO2 films obtained by ammonolysis of Nb2O5 - SiO2 sol - gel derived coatings," Journal of Non-Crystalline Solids, Vol. 354, pp. 1549-1552, 2008. https://doi.org/10.1016/j.jnoncrysol.2007.08.043
  7. Don-Kyu Lee, "A Study on the Characteristics of Semiconductor Oxides with $V_2O_5$," j.inst.Korean. electr.eletron.eng, Vol. 22, No. 4, pp. 965-969, 2018. DOI: 10.7471/ikeee.2018.22.4.965