TY - JOUR
T1 - Effect of structural compatibility of dye and hole transport material on performance of solid-state dye-sensitized solar cells
AU - Chen, Wei Chih
AU - Chen, Chia Yuan
AU - Wu, Chun Guey
AU - Ho, Kuo Chuan
AU - Wang, Leeyih
N1 - Funding Information:
The authors thank National Taiwan University , National Central University , Academia Sinica , and the National Science Council of the Republic of China ( NSC 100-3113-E-008-003 ) for financially supporting this research.
PY - 2012/9/15
Y1 - 2012/9/15
N2 - Solid-state dye-sensitized solar cells (ss-DSCs) are fabricated using Z907 or its thiophene derivative, CYC-B11, as a dye, and poly(3-hexylthiophene) (P3HT) or (2,2′,7,7′-tetrakis-(N,N-di-p-methoxyphenylamine)9, 9′)-spirobifluorene (OMeTAD) as a hole transport material (HTM). The effect of the structural compatibility of dye molecules with HTM on device performance is investigated. The CYC-B11/P3HT device has a much higher short-circuit current density than Z907/P3HT and CYC-B11/OMeTAD devices. Results from the incident photo-to-electron conversion efficiency and impedance measurements support the use of P3HT, in place of OMeTAD, as HTM markedly increases the photocurrent throughout the absorption spectrum of CYC-B11 and significantly reduces the charge-transfer resistance at the TiO 2/dye/HTM interface. As a result, the CYC-B11/P3HT ss-DSC that is fabricated from a thin (0.5 μm) mesoporous TiO 2 layer exhibits an outstanding power conversion efficiency of 3.66%.
AB - Solid-state dye-sensitized solar cells (ss-DSCs) are fabricated using Z907 or its thiophene derivative, CYC-B11, as a dye, and poly(3-hexylthiophene) (P3HT) or (2,2′,7,7′-tetrakis-(N,N-di-p-methoxyphenylamine)9, 9′)-spirobifluorene (OMeTAD) as a hole transport material (HTM). The effect of the structural compatibility of dye molecules with HTM on device performance is investigated. The CYC-B11/P3HT device has a much higher short-circuit current density than Z907/P3HT and CYC-B11/OMeTAD devices. Results from the incident photo-to-electron conversion efficiency and impedance measurements support the use of P3HT, in place of OMeTAD, as HTM markedly increases the photocurrent throughout the absorption spectrum of CYC-B11 and significantly reduces the charge-transfer resistance at the TiO 2/dye/HTM interface. As a result, the CYC-B11/P3HT ss-DSC that is fabricated from a thin (0.5 μm) mesoporous TiO 2 layer exhibits an outstanding power conversion efficiency of 3.66%.
KW - Impedance
KW - P3HT
KW - Solid-state dye-sensitized solar cells
KW - Structural compatibility
UR - http://www.scopus.com/inward/record.url?scp=84861380327&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2012.04.093
DO - 10.1016/j.jpowsour.2012.04.093
M3 - 期刊論文
AN - SCOPUS:84861380327
SN - 0378-7753
VL - 214
SP - 113
EP - 118
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -