CH3NH3Cl-Assisted One-Step Solution Growth of CH3NH3PbI3: Structure, Charge-Carrier Dynamics, and Photovoltaic Properties of Perovskite Solar Cells

We demonstrate a novel one-step solution approach to prepare perovskite CH3NH3PbI3 films by adding CH3NH3Cl (or MACl) to the standard CH3NH3PbI3 precursor (equimolar mixture of CH3NH3I and PbI2) solution. The use of MACl strongly affects the crystallization process of forming pure CH3NH3PbI3, leading not only to enhanced absorption of CH3NH3PbI3 but also to significantly improved coverage of CH3NH3PbI3 on a planar substrate. Compared to the standard one-step solution approach for CH3NH3PbI3, using MACl improves the performance of CH3NH3PbI3 solar cells from about 2% to 12% for the planar cell structure and from about 8% to 10% for the mesostructured device architecture. Although we find no significant effect of using MACl on charge transport and recombination in mesostructured perovskite cells, the recombination resistance for planar cells increases by 1–2 orders of magnitude by using MACl. These results suggest that this new one-step solution approach is promising for controlling CH3NH3PbI3 growth to ach...

[1]  Alain Goriely,et al.  Morphological Control for High Performance, Solution‐Processed Planar Heterojunction Perovskite Solar Cells , 2014 .

[2]  Peng Gao,et al.  Effect of Annealing Temperature on Film Morphology of Organic–Inorganic Hybrid Pervoskite Solid‐State Solar Cells , 2014 .

[3]  David Cahen,et al.  High Open-Circuit Voltage Solar Cells Based on Organic-Inorganic Lead Bromide Perovskite. , 2013, The journal of physical chemistry letters.

[4]  Peng Gao,et al.  Impedance spectroscopic analysis of lead iodide perovskite-sensitized solid-state solar cells. , 2014, ACS nano.

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

[6]  Mohammad Khaja Nazeeruddin,et al.  Efficient inorganic-organic hybrid perovskite solar cells based on pyrene arylamine derivatives as hole-transporting materials. , 2013, Journal of the American Chemical Society.

[7]  Laura M. Herz,et al.  Electron-Hole Diffusion Lengths Exceeding 1 Micrometer in an Organometal Trihalide Perovskite Absorber , 2013, Science.

[8]  Xiaohao Yang,et al.  Structure of methylammonium lead iodide within mesoporous titanium dioxide: active material in high-performance perovskite solar cells. , 2014, Nano letters.

[9]  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.

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

[11]  Kai Zhu,et al.  Influence of surface area on charge transport and recombination in dye-sensitized TiO2 solar cells. , 2006, The journal of physical chemistry. B.

[12]  Henry J Snaith,et al.  Efficient organometal trihalide perovskite planar-heterojunction solar cells on flexible polymer substrates , 2013, Nature Communications.

[13]  Yixin Zhao,et al.  Optical bleaching of perovskite (CH3NH3)PbI3 through room-temperature phase transformation induced by ammonia. , 2014, Chemical communications.

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

[15]  Kai Zhu,et al.  Charge Transport and Recombination in Perovskite (CH3NH3)PbI3 Sensitized TiO2 Solar Cells , 2013 .

[16]  Lioz Etgar,et al.  Depleted hole conductor-free lead halide iodide heterojunction solar cells , 2013 .

[17]  Juan Bisquert,et al.  Mechanism of carrier accumulation in perovskite thin-absorber solar cells , 2013, Nature Communications.

[18]  Giuseppe Gigli,et al.  MAPbI3-xClx Mixed Halide Perovskite for Hybrid Solar Cells: The Role of Chloride as Dopant on the Transport and Structural Properties , 2013 .

[19]  Qi Chen,et al.  Planar heterojunction perovskite solar cells via vapor-assisted solution process. , 2014, Journal of the American Chemical Society.

[20]  A. J. Frank,et al.  Size and shape control of nanocrystallites in mesoporous TiO2 films , 2007 .

[21]  M. Grätzel,et al.  Title: Long-Range Balanced Electron and Hole Transport Lengths in Organic-Inorganic CH3NH3PbI3 , 2017 .

[22]  Nam-Gyu Park,et al.  6.5% efficient perovskite quantum-dot-sensitized solar cell. , 2011, Nanoscale.

[23]  Jeffrey A. Christians,et al.  An inorganic hole conductor for organo-lead halide perovskite solar cells. Improved hole conductivity with copper iodide. , 2014, Journal of the American Chemical Society.

[24]  H. Snaith.  Perovskites: The Emergence of a New Era for Low-Cost, High-Efficiency Solar Cells , 2013 .

[25]  Francisco Fabregat-Santiago,et al.  Role of the Selective Contacts in the Performance of Lead Halide Perovskite Solar Cells. , 2014, The journal of physical chemistry letters.

[26]  Bert Conings,et al.  Perovskite‐Based Hybrid Solar Cells Exceeding 10% Efficiency with High Reproducibility Using a Thin Film Sandwich Approach , 2014, Advanced materials.

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

[28]  Nam-Gyu Park,et al.  Organometal Perovskite Light Absorbers Toward a 20% Efficiency Low-Cost Solid-State Mesoscopic Solar Cell , 2013 .

[29]  Nam-Gyu Park,et al.  Organolead Halide Perovskite: New Horizons in Solar Cell Research , 2014 .

[30]  Voltage-enhancement mechanisms of an organic dye in high open-circuit voltage solid-state dye-sensitized solar cells. , 2011, ACS nano.

[31]  Anders Hagfeldt,et al.  Effect of Different Hole Transport Materials on Recombination in CH3NH3PbI3 Perovskite-Sensitized Mesoscopic Solar Cells. , 2013, The journal of physical chemistry letters.

[32]  M. Grätzel,et al.  Sequential deposition as a route to high-performance perovskite-sensitized solar cells , 2013, Nature.

[33]  Henry J. Snaith,et al.  Efficient planar heterojunction perovskite solar cells by vapour deposition , 2013, Nature.