Conducting glasses recovered from thin film transistor liquid crystal display wastes for dye-sensitized solar cell cathodes.
Transparent conductive glasses such as thin film transistor (TFT) array and colour filter glasses were recovered from the TFT-liquid crystal display panel wastes by dismantling and sonic cleaning. Noble metals (i.e. platinum (Pt)) and indium tin oxide (ITO) are generally used in the cathode of a dye-sensitized solar cell (DSSC). To reduce the DSSC cost, Pt was replaced with nano nickel-encapsulated carbon-shell (Ni@C) nanoparticles, which were prepared by carbonization of Ni²⁺-β-cyclodextrin at 673 K for 2 h. The recovered conductive glasses were used in the DSSC electrodes in the substitution of relatively expensive ITO. Interestingly, the efficiency of the DSSC having the Ni@C-coated cathode is as high as 2.54%. Moreover, the cost of the DSSC using the recovered materials can be reduced by at least 24%.
a Department of Environmental Engineering , National Cheng Kung University , Tainan 70101 , Taiwan.
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Chen
a Department of Environmental Engineering , National Cheng Kung University , Tainan 70101 , Taiwan.|b The Experimental Forest , National Taiwan University , Nan-Tou 55750 , Taiwan.
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Chang
a Department of Environmental Engineering , National Cheng Kung University , Tainan 70101 , Taiwan.
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Peng
a Department of Environmental Engineering , National Cheng Kung University , Tainan 70101 , Taiwan.
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Wang
D002244:Carbon / Q000737:chemistry*; D004396:Coloring Agents; D011211:Electric Power Supplies; D004566:Electrodes; D005898:Glass; D050866:Liquid Crystals; D053758:Nanoparticles / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*; D012993:Solar Energy; D014866:Waste Products
D004396:Coloring Agents; D014866:Waste Products; D002244:Carbon; D009532:Nickel
DSSC; Ni@C; Nickel; conducting glass; recovered ITO