Towannang Madsakorn, Thiangkaew Anongnad, Maiaugree Wasan, Ratchaphonsaenwong Kunthaya, Jarernboon Wirat, Pimanpang Samuk, Amornkitbamrung Vittaya
Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
The Integrated Nanotechnology Center, Khon Kaen University, Khon Kaen, 40002, Thailand.
J Nanosci Nanotechnol. 2018 Feb 1;18(2):1207-1214. doi: 10.1166/jnn.2018.13979.
Tungsten carbide (WC) particles (~1 μm) were dispersed in DI water and dropped onto conductive glass. The resulting WC films were used as dye-sensitized solar cell (DSSC) counter electrodes. The performance of the WC DSSC based on the organic thiolate/disulfide (T-/T2) electrolyte was ~0.78%. The cell efficiency was greatly improved after decorating palladium (Pd) or platinum (Pt) nanoparticles on WC particles with a promising efficiency of ~2.15% for Pd-WC DSSC and ~4.62% for Pt-WC DSSC. The efficiency improvement of the composited (Pd-WC and Pt-WC) cells is attributed to co-functioning catalysts, the large electrode interfacial area and a low charge-transfer resistance at the electrolyte/counter electrode interface.
碳化钨（WC）颗粒（约1μm）分散在去离子水中，然后滴涂在导电玻璃上。所得的WC薄膜用作染料敏化太阳能电池（DSSC）的对电极。基于有机硫醇盐/二硫化物（T-/T2）电解质的WC DSSC的性能约为0.78%。在用钯（Pd）或铂（Pt）纳米颗粒修饰WC颗粒后，电池效率得到了极大提高，Pd-WC DSSC的效率约为2.15%，Pt-WC DSSC的效率约为4.62%。复合（Pd-WC和Pt-WC）电池的效率提高归因于协同作用的催化剂、较大的电极界面面积以及电解质/对电极界面处较低的电荷转移电阻。
