Post modification of perovskite sensitized solar cells by aluminum oxide for enhanced performance

The method of post-modification by aluminum oxide was successfully introduced into perovskite sensitized solar cells with a liquid electrolyte. Post-modification by Al2O3 could both protect the perovskite sensitizer from corrosion by electrolyte and effectively suppressed electron recombination. The UV-vis spectra revealed an enhanced absorption especially in the long wavelength range after modification. The XRD results showed a disappeared peak of PbI2, demonstrating that the modification could effectively protect the perovskite from dissolution in the electrolyte. Stability test showed that the remaining JSC improved from 10% to 50% at a given period of time. The EIS results and dark current curves illustrated that this modification increased the interface resistance in dark, confirming that the electron recombination process was effectively restrained. Finally, the corresponding efficiency was largely increased from 3.56 to 6.00% by 68%. The strategy using aluminium oxide to post-modify a perovskite sensitized solar cell was therefore proved to be a useful tool for the optimization of perovskite sensitized solar cells.

[1]  H. Snaith,et al.  Low-temperature processed meso-superstructured to thin-film perovskite solar cells , 2013 .

[2]  J. Noh,et al.  Efficient inorganic–organic hybrid heterojunction solar cells containing perovskite compound and polymeric hole conductors , 2013, Nature Photonics.

[3]  Hyun Suk Jung,et al.  Dye Sensitized Solar Cells for Economically Viable Photovoltaic Systems. , 2013, The journal of physical chemistry letters.

[4]  Jieshan Qiu,et al.  High performance hybrid solar cells sensitized by organolead halide perovskites , 2013 .

[5]  Yongcai Qiu,et al.  All-solid-state hybrid solar cells based on a new organometal halide perovskite sensitizer and one-dimensional TiO2 nanowire arrays. , 2013, Nanoscale.

[6]  J. Noh,et al.  Chemical management for colorful, efficient, and stable inorganic-organic hybrid nanostructured solar cells. , 2013, Nano letters.

[7]  J. Teuscher,et al.  Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites , 2012, Science.

[8]  L. Etgar,et al.  Mesoscopic CH3NH3PbI3/TiO2 heterojunction solar cells. , 2012, Journal of the American Chemical Society.

[9]  Aram Amassian,et al.  Hybrid passivated colloidal quantum dot solids. , 2012, Nature nanotechnology.

[10]  N. Park,et al.  Lead Iodide Perovskite Sensitized All-Solid-State Submicron Thin Film Mesoscopic Solar Cell with Efficiency Exceeding 9% , 2012, Scientific Reports.

[11]  Guangda Niu,et al.  Inorganic iodide ligands in ex situ PbS quantum dot sensitized solar cells with I−/I3− electrolytes , 2012 .

[12]  Chaorong Li,et al.  Tuning photoconductive properties of organic–inorganic hybrid perovskite nanocomposite device via organic layer's thickness , 2012 .

[13]  N. Park,et al.  6.5% efficient perovskite quantum-dot-sensitized solar cell. , 2011, Nanoscale.

[14]  Liduo Wang,et al.  Effects of an Intercalation Nanocomposite at the Photoanode/ Electrolyte Interface in Quasi-Solid Dye-Sensitized Solar Cells , 2011 .

[15]  G. Papavassiliou,et al.  Some Unconventional Organic−Inorganic Hybrid Low-Dimensional Semiconductors and Related Light-Emitting Devices , 2011 .

[16]  马蓓蓓,et al.  电化学阻抗谱研究染料/Al 2 O 3 交替组装结构的光伏特性及作用机理 , 2011 .

[17]  Joseph T. Hupp,et al.  Surface modification of SnO2 photoelectrodes in dye-sensitized solar cells: Significant improvements in photovoltage via Al2O3 atomic layer deposition , 2010 .

[18]  V. Verlaan,et al.  Composition and bonding structure of plasma-assisted ALD Al2O3 films , 2010 .

[19]  F. Fabregat‐Santiago,et al.  Recombination in quantum dot sensitized solar cells. , 2009, Accounts of chemical research.

[20]  T. Miyasaka,et al.  Organometal halide perovskites as visible-light sensitizers for photovoltaic cells. , 2009, Journal of the American Chemical Society.

[21]  Thomas W. Hamann,et al.  Outer-Sphere Redox Couples as Shuttles in Dye-Sensitized Solar Cells. Performance Enhancement Based on Photoelectrode Modification via Atomic Layer Deposition , 2008 .

[22]  Liduo Wang,et al.  Post-modification using aluminum isopropoxide after dye-sensitization for improved performance and stability of quasi-solid-state solar cells , 2008 .

[23]  Junya Kobayashi,et al.  Effect of ZnS coating on the photovoltaic properties of CdSe quantum dot-sensitized solar cells , 2008 .

[24]  Aleksandra Radenovic,et al.  ZnO-Al2O3 and ZnO-TiO2 core-shell nanowire dye-sensitized solar cells. , 2006, The journal of physical chemistry. B.

[25]  B. Wood,et al.  XPS study of the major minerals in bauxite: gibbsite, bayerite and (pseudo-)boehmite. , 2006, Journal of colloid and interface science.

[26]  P. Falaras,et al.  Comparative studies of substituted ruthenium(II)-pyrazoyl-pyridine complexes with classical N3 photosensitizer: the influence of -NCS dye ligands on the efficiency of solid-state nanocrystalline solar cells , 2004 .

[27]  Peng Wang,et al.  A stable quasi-solid-state dye-sensitized solar cell with an amphiphilic ruthenium sensitizer and polymer gel electrolyte , 2003, Nature materials.

[28]  Joachim Luther,et al.  Modeling and interpretation of electrical impedance spectra of dye solar cells operated under open-circuit conditions , 2002 .

[29]  S. Haque,et al.  Slow charge recombination in dye-sensitised solar cells (DSSC) using Al2O3 coated nanoporous TiO2 films. , 2002, Chemical communications.

[30]  E. Sudoł,et al.  XPS and FTIR Surface Characterization of TiO2 Particles Used in Polymer Encapsulation , 2001 .

[31]  K. Mandal,et al.  Ultrafast Electronic Relaxation Dynamics in Layered Iodide Semiconductors: A Comparative Study of Colloidal BiI3 and PbI2 Nanoparticles , 2000 .

[32]  Annabella Selloni,et al.  Structure and Energetics of Water Adsorbed at TiO2 Anatase (101) and (001) Surfaces , 1998 .

[33]  Anders Hagfeldt,et al.  Investigation of influence of redox species on the interfacial energetics of a dye-sensitized nanoporous TiO2 solar cell , 1998 .

[34]  Horst Weller,et al.  Quantum-Sized PbS, CdS, Ag2S, Sb2S3, and Bi2S3 Particles as Sensitizers for Various Nanoporous Wide-Bandgap Semiconductors , 1994 .

[35]  Mohammad Khaja Nazeeruddin,et al.  Conversion of light to electricity by cis-X2bis(2,2'-bipyridyl-4,4'-dicarboxylate)ruthenium(II) charge-transfer sensitizers (X = Cl-, Br-, I-, CN-, and SCN-) on nanocrystalline titanium dioxide electrodes , 1993 .