期刊
ADVANCED FUNCTIONAL MATERIALS
卷 24, 期 17, 页码 2462-2471出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201303518
关键词
composite electrodes; transparent electrodes; silver nanowires; indium-free; thin film solar cells
类别
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [2012R1A3A2026417]
- National Research Council of Science & Technology (NST), Republic of Korea [KK-1402, KK-1402-C0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2012R1A3A2026417] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Fully solution-processed Al-doped ZnO/silver nanowire (AgNW)/Al-doped ZnO/ZnO multi-stacked composite electrodes are introduced as a transparent, conductive window layer for thin-film solar cells. Unlike conventional sol-gel synthetic pathways, a newly developed combustion reaction-based sol-gel chemical approach allows dense and uniform composite electrodes at temperatures as low as 200 degrees C. The resulting composite layer exhibits high transmittance (93.4% at 550 nm) and low sheet resistance (11.3 sq(-1)), which are far superior to those of other solution-processed transparent electrodes and are comparable to their sputtered counterparts. Conductive atomic force microscopy reveals that the multi-stacked metal-oxide layers embedded with the AgNWs enhance the photocarrier collection efficiency by broadening the lateral conduction range. This as-developed composite electrode is successfully applied in Cu(In1-x,Ga-x)S-2 (CIGS) thin-film solar cells and exhibits a power conversion efficiency of 11.03%. The fully solution-processed indium-free composite films demonstrate not only good performance as transparent electrodes but also the potential for applications in various optoelectronic and photovoltaic devices as a cost-effective and sustainable alternative electrode.
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