TY - JOUR
T1 - Hierarchically structured photoanode with enhanced charge collection and light harvesting abilities for fiber-shaped dye-sensitized solar cells
AU - Liu, Guicheng
AU - Wang, Manxiang
AU - Wang, Hui
AU - Ardhi, Ryanda Enggar Anugrah
AU - Yu, Hyunjin
AU - Zou, Dechun
AU - Lee, Joong Kee
N1 - Funding Information:
This work was supported by the research grants of ( NRF-2017R1A2B2002607 ) NRF funded by the National Research Foundation under the Ministry of Science, ICT & Future, Republic of Korea; the framework of international cooperation program managed by the National Research Foundation of Korea (NRF-2017K2A9A2A06015754, FY2017), and KIST Institutional Program ( 2E28141 ). The authors also thank Mr. Joo Man Woo for the support during the preparation of this study.
Funding Information:
This work was supported by the research grants of (NRF-2017R1A2B2002607) NRF funded by the National Research Foundation under the Ministry of Science, ICT & Future, Republic of Korea; the framework of international cooperation program managed by the National Research Foundation of Korea (NRF-2017K2A9A2A06015754, FY2017), and KIST Institutional Program (2E28141). The authors also thank Mr. Joo Man Woo for the support during the preparation of this study.
Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/7
Y1 - 2018/7
N2 - The performances of fiber dye-sensitized solar cells (FDSSCs), in terms of charge collection efficiency, light-harvesting ability, and structural stability, are improved through a novel hierarchically structured photoanode based on a Ti microridge/nanorod-modified wire substrate. The microridge made of several Ti micropits is inserted into TiO2 layer to shorten the photoelectron transport distance from the original place in the TiO2 layer to substrate and to increase the electron transport rate. The Ti micropits are used as light-gathering centers to collect the reflected light. Meanwhile, the Ti nanorods are evenly distributed on the surface of the microridge-coated Ti wire substrate, which increases the contact area between the substrate and the TiO2 layer in order to suppress the electron recombination and scatters the incident light to further improve the light-harvesting ability. Therefore, the charge collection and power conversion efficiencies of the novel FDSSC have been accordingly enhanced by 17.7% and 61.6%, respectively, compared with traditional FDSSC. Moreover, the structural stability of the novel FDSSC has been strengthened.
AB - The performances of fiber dye-sensitized solar cells (FDSSCs), in terms of charge collection efficiency, light-harvesting ability, and structural stability, are improved through a novel hierarchically structured photoanode based on a Ti microridge/nanorod-modified wire substrate. The microridge made of several Ti micropits is inserted into TiO2 layer to shorten the photoelectron transport distance from the original place in the TiO2 layer to substrate and to increase the electron transport rate. The Ti micropits are used as light-gathering centers to collect the reflected light. Meanwhile, the Ti nanorods are evenly distributed on the surface of the microridge-coated Ti wire substrate, which increases the contact area between the substrate and the TiO2 layer in order to suppress the electron recombination and scatters the incident light to further improve the light-harvesting ability. Therefore, the charge collection and power conversion efficiencies of the novel FDSSC have been accordingly enhanced by 17.7% and 61.6%, respectively, compared with traditional FDSSC. Moreover, the structural stability of the novel FDSSC has been strengthened.
KW - Charge collection efficiency
KW - Fiber-shaped dye-sensitized solar cell
KW - Light harvesting
KW - Light scattering
KW - Titanium based photoanode
UR - http://www.scopus.com/inward/record.url?scp=85045741701&partnerID=8YFLogxK
U2 - 10.1016/j.nanoen.2018.04.037
DO - 10.1016/j.nanoen.2018.04.037
M3 - Article
AN - SCOPUS:85045741701
SN - 2211-2855
VL - 49
SP - 95
EP - 102
JO - Nano Energy
JF - Nano Energy
ER -
