有机-无机杂化钙钛矿太阳能电池成本低廉,制作工艺简易和光电转化效率高等优点,成为光伏领域研究的热点。钙钛矿太阳能电池中电子缓冲层对提高器件的性能起到重要的作用。二氧化钛(TiO2)优异的光电性能在环境保护、太阳能电池等领域都有重要的应用。主要从TiO2材料在钙钛矿太阳能电池中应用进行总结,阐述了TiO2材料基本制作方法,详细介绍了单层TiO2材料、复合层TiO2材料和掺杂TiO2材料作为电子缓冲层的钙钛矿太阳能电池研究的最新进展。
Organic-inorganic hybrid perovskite solar cells have the advantages of low cost,simple manufacturing process,high photoelectric conversion efficiency and so on,which have become a hot research topic in the photovoltaic field.The electron buffer layer in perovskite solar cells plays an important role in improving the performance of the device.TiO2 has excellent photoelectric properties which was important applications in environmental protection,solar cells and other fields.The application of TiO2 in perovskite solar cells was summarized,expounded the basic manufacturing methods of TiO2.The latest development of perovskite solar cells with single layer TiO2 material,composite layer TiO2 material and doped TiO2 material as electron buffer layer was introduced in detail.
[1] 赵志国,秦校军,郭男杰,等.有机-无机杂化钙钛矿太阳能电池研究进展[J].化工新型材料,2017,45(12):9-12.
[2] Kojima A,Teshima K,Shirai Y,et al.Organometal halide perovskites as visible-light sensitizers for photovoltaic cells[J].Journal of the American Chemical Society,2009,131(17):6050-6051.
[3] Zhang P,Wu J,Zhang T,et al.Perovskite solar cells with ZnO electron-transporting materials[J].Advanced Materials,2018,30(3):1703737-1703741.
[4] Ogomi Y,Morita A,Tsukamoto S,et al.CH3NH3SnxPb(1-x)I3 perovskite solar cells covering up to 1060nm[J].Journal of Physical Chemistry Letters,2014,5(6):1004-1011.
[5] Huang H,Zhao F,Liu L,et al.Emulsion synthesis of size-tunable CH3NH3PbBr3 quantum dots:an alternative route toward efficient light-emitting diodes[J].ACS Applied Materials & Interfaces,2015,7(51):28128-28132.
[6] Xiong J,Yang B,Cao C,et al.Interface degradation of perovskite solar cells and its modification using an annealing-free TiO2,NPs layer[J].Organic Electronics,2016,30:30-35.
[7] Li H,Shi W,Huang W,et al.Carbon quantum dots/TiOx electron transport layer boosts efficiency of planar heterojunction perovskite solar cells to 19%[J].Nano Letters,2017,17(4):2328-2335.
[8] Shahiduzzaman M,Karakawa M,Yamamoto K,et al.Interface engineering of compact-TiOx in planar perovskite solar cells using low-temperature processable high-mobility fullerene derivative[J].Solar Energy Materials and Solar Cells,2018,178:1-7.
[9] Liang C,Wu Z,Li P,et al.Chemical bath deposited rutile TiO2,compact layer toward efficient planar heterojunction perovskite solar cells[J].Applied Surface Science,2016,391:337-344.
[10] Chen B X,Rao H S,Li W G,et al.Achieving high-performance planar perovskite solar cell with Nb-doped TiO2 compact layer by enhanced electron injection and efficient charge extraction[J].Journal of Materials Chemistry A,2016,4(15):5647-5653.
[11] Zhang H,Shi J,Xu X,et al.Mg-doped TiO2 boosts the efficiency of planar perovskite solar cells to exceed 19%[J].Journal of Materials Chemistry A,2016,4(40):15383-15389.
[12] Peng J,Duong T,Zhou X,et al.Efficient indium-doped TiOx electron transport layers for high-performance perovskite solar cells and perovskite-silicon tandems[J].Advanced Energy Materials,2017,7(4):1601768-1601777.
[13] Song J,Li S P,Zhao Y L,et al.Performance enhancement of perovskite solar cells by doping TiO2 blocking layer with group VB elements[J].Journal of Alloys and Compounds,2017,694:1232-1238.
[14] Zhang H,Zhang Q,Lv Y,et al.Upconversion Er-doped TiO2 nanorod arrays for perovskite solar cells and the performance improvement[J].Materials Research Bulletin,2018,106:346-352.
[15] Li Y,Cooper J K,Liu W,et al.Defective TiO2 with high photoconductive gain for efficient and stable planar heterojunction perovskite solar cells[J].Nature Communications,2016,7:12446-12452.
[16] Liu Z,Chen Q,Hong Z,et al.Low-temperature TiOx Compact layer for planar heterojunction perovskite solar cells[J].ACS Applied Materials & Interfaces,2016,8(17):11076-11083.
[17] Qiu L,Zhuang Z,Yang S,et al.Fabrication of high efficiency perovskite solar cells based on mesoporous TiO2 nanofibrous film under high humidity conditions[J].Materials Research Bulletin,2018,106:439-445.
[18] Singh M,Chiang C H,Boopathi K M,et al.A novel ball milling technique for room temperature processing of TiO2 nanoparticles employed as the electron transport layer in perovskite solar cells and modules[J].Journal of Materials Chemistry A,2018,6(16):7114-7122.
基金资助
国家自然科学基金(61540016);黔西南州科技局项目(2016-1-35);贵州省大学生创新创业项目(201710666037);贵州省教育厅基金(黔教合KY[2014]318);贵州省科技厅基金(黔科合字LH[2014]7410)