Catalytic, Conductive, and Transparent Platinum Nanofiber Webs for FTO-Free Dye-Sensitized Solar Cells

被引:39
作者
Kim, Jongwook [1 ]
Kang, Jonghyun [2 ]
Jeong, Uiyoung [2 ]
Kim, Heesuk [1 ]
Lee, Hyunjung [2 ]
机构
[1] Korea Inst Sci & Technol, Hybrid Polymer Mat Res Ctr, Seoul 130650, South Korea
[2] Kookmin Univ, Sch Adv Mat Engn, Seoul 136702, South Korea
基金
新加坡国家研究基金会;
关键词
platinum; nanofiber; FTO-free; dye-sensitized solar cells; long-term stability; catalytic transparent electrodes; FILMS; NANOWIRES; ENERGY;
D O I
10.1021/am400179j
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
We report a multifunctional platinium nanofiber (PtNF) web that can act as a catalyst layer in dye-sensitized solar cell (DSSC) to simultaneously function as a transparent counter electrode (CE), i.e., without the presence of an indium-doped tin oxide (ITO) or fluorine-doped tin oxide (FTO) glass. This PtNF web can be easily produced by electrospinning which is highly cost-effective and suitable for large-area industrial-scale production. Electrospun PtNFs are straight and have a length of a few micrometers, with a common diameter of 40-70 nm. Each nanofiber is composed of compact, crystalline Pt grains and they are well-fused and highly interconnected, which should be helpful to provide an efficient conductive network for free electron transport and a large surface area for electrocatalytic behavior. A PtNF web is served as a counter electrode in DSSC and the photovoltaic performance increases up to a power efficiency of 6.0%. It reaches up to 83% of that in a conventional DSSC using a Pt-coated FTO glass as a counter electrode. Newly designed DSSCs containing PtNF webs display highly stable photoelectric conversion efficiencies, and excellent catalytic, conductive, and transparent properties, as well as long-term stability. Also, while the DSSC function is retained, the fabrication cost is reduced by eliminating the transparent conducting layer on the counter electrode. The presented method of fabricating DSSCs based on a PtNF web can be extended to other electrocatalytic optoelectronic devices that combine superior catalytic activity with high conductivity and transparency.
引用
收藏
页码:3176 / 3181
页数:6
相关论文
共 24 条
[1]  
Bae S, 2010, NAT NANOTECHNOL, V5, P574, DOI [10.1038/nnano.2010.132, 10.1038/NNANO.2010.132]
[2]   Solar energy conversion by dye-sensitized photovoltaic cells [J].
Grätzel, M .
INORGANIC CHEMISTRY, 2005, 44 (20) :6841-6851
[3]   Water-Soluble Polyelectrolyte-Grafted Multiwalled Carbon Nanotube Thin Films for Efficient Counter Electrode of Dye-Sensitized Solar Cells [J].
Han, Jinkyu ;
Kim, Hyunju ;
Kim, Dong Young ;
Jo, Seong Mu ;
Jang, Sung-Yeon .
ACS NANO, 2010, 4 (06) :3503-3509
[4]   Emerging Transparent Electrodes Based on Thin Films of Carbon Nanotubes, Graphene, and Metallic Nanostructures [J].
Hecht, David S. ;
Hu, Liangbing ;
Irvin, Glen .
ADVANCED MATERIALS, 2011, 23 (13) :1482-1513
[5]   Percolation in transparent and conducting carbon nanotube networks [J].
Hu, L ;
Hecht, DS ;
Grüner, G .
NANO LETTERS, 2004, 4 (12) :2513-2517
[6]   A New Architecture for Transparent Electrodes: Relieving the Trade-Off Between Electrical Conductivity and Optical Transmittance [J].
Kuang, Ping ;
Park, Joong-Mok ;
Leung, Wai ;
Mahadevapuram, Rakesh C. ;
Nalwa, Kanwar S. ;
Kim, Tae-Geun ;
Chaudhary, Sumit ;
Ho, Kai-Ming ;
Constant, Kristen .
ADVANCED MATERIALS, 2011, 23 (21) :2469-2473
[7]   The Race To Replace Tin-Doped Indium Oxide: Which Material Will Win? [J].
Kumar, Akshay ;
Zhou, Chongwu .
ACS NANO, 2010, 4 (01) :11-14
[8]   Fabrication and electrical properties of platinum nanofibres by electrostatic spinning [J].
Lee, Hyejin ;
Choi, Seung-Hoon ;
Jo, Seong Mu ;
Kim, Dong Young ;
Kwak, Soonjong ;
Cha, Min Whan ;
Kim, Il-Doo ;
Jang, Sung-Yeon .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2009, 42 (12)
[9]   Solution-processed metal nanowire mesh transparent electrodes [J].
Lee, Jung-Yong ;
Connor, Stephen T. ;
Cui, Yi ;
Peumans, Peter .
NANO LETTERS, 2008, 8 (02) :689-692
[10]   Dye-sensitized solar cells with Pt- and TCO-free counter electrodes [J].
Lee, Kun Seok ;
Lee, Hang Ken ;
Wang, Dong Hwan ;
Park, Nam-Gyu ;
Lee, Jun Young ;
Park, O. Ok ;
Park, Jong Hyeok .
CHEMICAL COMMUNICATIONS, 2010, 46 (25) :4505-4507