The effects of 100 nm-diameter Au nanoparticles on dye-sensitized solar cells

2011 ◽  
Vol 99 (25) ◽  
pp. 253107 ◽  
Author(s):  
Changwoo Nahm ◽  
Hongsik Choi ◽  
Jongmin Kim ◽  
Dae-Ryong Jung ◽  
Chohui Kim ◽  
...  
2017 ◽  
Vol 687 ◽  
pp. 152-157 ◽  
Author(s):  
Da Hyun Song ◽  
Hyun-Young Kim ◽  
Ho-Sub Kim ◽  
Jung Sang Suh ◽  
Bong-Hyun Jun ◽  
...  

2011 ◽  
Vol 2 ◽  
pp. 681-690 ◽  
Author(s):  
Tanujjal Bora ◽  
Htet H Kyaw ◽  
Soumik Sarkar ◽  
Samir K Pal ◽  
Joydeep Dutta

Zinc oxide (ZnO) nanorods decorated with gold (Au) nanoparticles have been synthesized and used to fabricate dye-sensitized solar cells (DSSC). The picosecond-resolved, time-correlated single-photon-count (TCSPC) spectroscopy technique was used to explore the charge-transfer mechanism in the ZnO/Au-nanocomposite DSSC. Due to the formation of the Schottky barrier at the ZnO/Au interface and the higher optical absorptions of the ZnO/Au photoelectrodes arising from the surface plasmon absorption of the Au nanoparticles, enhanced power-conversion efficiency (PCE) of 6.49% for small-area (0.1 cm2) ZnO/Au-nanocomposite DSSC was achieved compared to the 5.34% efficiency of the bare ZnO nanorod DSSC. The TCSPC studies revealed similar dynamics for the charge transfer from dye molecules to ZnO both in the presence and absence of Au nanoparticles. A slower fluorescence decay associated with the electron recombination process, observed in the presence of Au nanoparticles, confirmed the blocking of the electron transfer from ZnO back to the dye or electrolyte by the Schottky barrier formed at the ZnO/Au interface. For large area DSSC (1 cm2), ~130% enhancement in PCE (from 0.50% to 1.16%) was achieved after incorporation of the Au nanoparticles into the ZnO nanorods.


RSC Advances ◽  
2015 ◽  
Vol 5 (35) ◽  
pp. 27464-27469 ◽  
Author(s):  
Hyun-Young Kim ◽  
Da Hyun Song ◽  
Hyeokjin Yoon ◽  
Jung Sang Suh

Double-layered composite films consisting of TiO2/Ag and TiO2/Au nanoparticles.


2013 ◽  
Vol 1 (43) ◽  
pp. 13524 ◽  
Author(s):  
Qiong Wang ◽  
Teera Butburee ◽  
Xia Wu ◽  
Hongjun Chen ◽  
Gang Liu ◽  
...  

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