代太阳能电池大学课件

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1、赵赵 兴兴 中中Email：Tel: 87642784第三代太阳能电池 一，为什么要研究太阳能电池 二，太阳能电池发展概述 三， 第三代太阳能电池研究提纲 为什么要研究太阳能电池？ 太阳能是地球上大多数能源的终极来源 化石燃料终将枯竭，环境污染日益严重Energy-crisis is comingGreen-house effect is deterioratingRenewable, cheaper, environment friendly energy is in highlyDemanding ! 为什么要研究太阳能电池？ PV: A Thriving Global Industry

2、and Markets 太阳能电池是微电子科学和技术研究中永远的朝阳方向 太阳能电池研究是基础科学与工程技术研究的主要会聚中心 太阳能电池研究在可持续发展的社会中具有重要的市场和应用前景 二，太阳能电池发展概述1876 Photovoltage Observed in Solid (Se)1954 First Practical Solar Cell (c-Si; eff = 6%)1960s Used for space applications to power satellites1970s Started to be used for terrestrial applicationsA

3、: 玻璃盖板 B: 抗反射涂层C: 接触网 D：N型硅E：P型硅 F: 背部接触面 第一代、第二代太阳能电池第一代、第二代太阳能电池光伏电池其他化合物电池单晶硅电池(sc-Si)多晶硅电池(mc-Si)非晶硅电池(a-Si)晶体硅电池薄膜电池90%10%铜铟镓硒（CIGS）硫化隔（Cds）硒铟铜（CuInSe）蹄化隔（CdTe）砷化镓（CaAs）Nautre 414, 338, 2001 太阳能电池发展瓶颈太阳能电池发展瓶颈The bottle neck for using solar cell Three factors influence the application of Solar

4、Cell:(1) 效率, (2) 稳定性, (3) 成本成本 染料敏化纳米晶太阳能电池 成本仅为常规电池的1/8 至 1/10！ 三， 第三代太阳能电池染料敏化纳米晶 太阳能电池研究 国家基金委杰出青年基金，国家科技部纳米研究重大专项和863项目支持 Co-worker: Dr. HAN, Hongwei; Dr. WU Shujuan Dr. ZHANG, Jin; Dr. Yang Ying; Dr. Zou Conghua1, Background2, (PEO/PVDF)/TiO2 electrolyte 3, PEO/P(VDF-HFP)/ Nanoparticle electrol

5、yte TiO2 modification by magnetron sputtering 5, Summary 三， 第三代太阳能电池研究Comparing with sol-gel, TiO2 film by reactive DC magnetron sputtering shows better durability, high photocatalytic activity, and favorable homogeneity. Ref: Surface and Coatings Technology 151, 51, 2002Liquid-State Solid-StateKey

6、issue of DSSCs is The Stability of Basic problems needed to overcome: High recombination rate at the TiO2 / HC interface Low conductivity of the solid state electrolytes 1. Ref: J. Phys. Chem, B. 2003 Introducing nanoparticle to PEO for Li+ batteries Ref: Nature, Vol. 394, 1998 2. Applied in DSSC wi

7、th PEO/nano-TiO2 Ref: Nano Letters, Vol. 2, 20023. Filled with fumed silica nanoparticles in PEO Ref: Chem. Commun., Vol. 14, 2004Improve the PEO/nanoparticle system to further increase ionic conductivity and reduce recombination rate(PEO/PVDF)/TiO2 electrolyte for Ionic conductivity of polymer redo

8、x electrolyte hybrid with TiO2 nanoparticles as a function of PEO/PVDF ratio at RT1E-51E-41E-3 Conductivity / S cm-1PEO/ PVDF ratios0:102:84:66:48:210:00100200300400500600700024684005006007008000.00.20.40.60.81.0 IPCE / %Wavenumber / nm J / mA cm-2V / mV Jsc Voc FF / % BP-10:0. 7.3 606 0.42 2.8 BP-4

9、:6. 7.9 679 0.58 4.8 BP-0:10. 7.0 660 0.36 2.6 Photocurrent density-voltage characteristics of solar cell using BP-0:10, BP-4:6 and BP-10:0 blend polymer redox electrolyte. Insert Figure, Photocurrent action spectrum of solar cell using BP-4:6 blend polymer redox electrolyte. HW Han et al., Adv. Fun

10、ct. Mater., 2005, 15, 1940-1944Water and ethanol modified (PEO/PVDF)/TiO2 electrolyte, highest energy conversion efficiency is 5.8%(PEO/PVDF)/TiO2 electrolyteWater and ethanol addition enhanced stability of DSSC! Y. Yang et al. / J. Power Sources 185 (2008) 14921498; Nanotech. 20 (2009) 105204(PEO/P

11、VDF)/TiO2 electrolyte PEO/P(VDF-HFP)/Nanoparticle electrolyte Conductive carbon nanoparticles hybrid PEO/P(VDF-HFP)/SiO2 NPJ. Zhang et al. / Solid State Ionics 178 (2007) 15951601Efficiency 4.27% at 5% carbon NP End-functional silicone coupling agent modified PEO/P(VDF-HFP)/SiO2 NPJ Zhang et al, Nan

12、otechnology 18 (2007) 295606, 19 (2008) 245202PEO/P(VDF-HFP)/Nanoparticle electrolyte 4, TiO2 modification by magnetron sputtering Al2O3 coated TiO2 electrodes enhance DSSCS. Wu et al. / Journal of Power Sources 182 (2008) 1191234, TiO2 modification by magnetron sputtering MgO-coated TiO2 electrodes

13、SJ Wu et al., Nanotechnology 19 (2008) 215704 ZnO-coated TiO2 electrodeSJ Wu et al, Appl. Phys. Lett., 92, 122106 20084, TiO2 modification by magnetron sputtering 1, Adding PVDF into PEO/nanoparticles electrolyte increased the ionic conductivity and efficiency of DSSC2, Water and ethanol addition enhanced ionic conductivity, efficiency and stability of (PEO/PVDF)/TiO2 NP electrolyte 3, End-functional silicone coupling agent enhanced PEO/ P(VDF-HFP)/SiO2 NP electrolyte4, Magnetron sputtering oxides could depress the recombination rate at TiO2/Dye(elctrolytes) interfaces