Humidity resistant fabrication of CH3NH3PbI3 perovskite solar cells and modules

Abstract A humidity resistant and versatile fabrication method for the production of very high quality, organic-inorganic perovskite films, solar cells and solar modules is presented. By using ethyl acetate as an anti-solvent during deposition, perovskite solar cells with power conversion efficiencies (PCEs) up to 15% were fabricated in a 75% relative humidity (RH) environment. Ethyl acetate acts as a moisture absorber during spin-coating, protecting sensitive perovskite intermediate phases from airborne water during film formation and annealing. We have demonstrated the manufacture of 50 mm × 50 mm series interconnected modules with PCEs in excess of 10% for 13.5 cm2 devices processed in air at 75%RH and 11.8% at 50%RH. To the best of our knowledge, these results represent the highest efficiency for perovskite solar modules processed under high humidity ambient conditions. This new deposition protocol allows for low-cost, efficient and consistent device fabrication in humid climates and uncontrolled laboratories.

[1]  Houcheng Zhang,et al.  A rapid annealing technique for efficient perovskite solar cells fabricated in air condition under high humidity , 2016 .

[2]  N. Park,et al.  15.76% efficiency perovskite solar cells prepared under high relative humidity: importance of PbI2 morphology in two-step deposition of CH3NH3PbI3 , 2015 .

[3]  D. Gudbjartsson,et al.  Variants in ELL2 influencing immunoglobulin levels associate with multiple myeloma , 2015, Nature Communications.

[4]  Matthew R. Leyden,et al.  Influence of Air Annealing on High Efficiency Planar Structure Perovskite Solar Cells , 2015 .

[5]  M. Johnston,et al.  Formamidinium lead trihalide: a broadly tunable perovskite for efficient planar heterojunction solar cells , 2014 .

[6]  F. Giordano,et al.  Enhanced electronic properties in mesoporous TiO2 via lithium doping for high-efficiency perovskite solar cells , 2016, Nature Communications.

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

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

[9]  E. Geissler,et al.  Incompatible Liquids in Confined Conditions , 2014, 1503.05015.

[10]  Dimitrios Raptis,et al.  Study of perovskite solar cells synthesized under ambient conditions and of the performance of small cell modules , 2015 .

[11]  Tatsuo Mori,et al.  High-performance CH3NH3PbI3 perovskite solar cells fabricated under ambient conditions with high relative humidity , 2015 .

[12]  Ullrich Steiner,et al.  Perovskite Solar Cell Stability in Humid Air: Partially Reversible Phase Transitions in the PbI2‐CH3NH3I‐H2O System , 2016 .

[13]  Effect of relative humidity on crystal growth, device performance and hysteresis in planar heterojunction perovskite solar cells. , 2016, Nanoscale.

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

[16]  H. H. Rowley,et al.  Solubility of Water in Diethyl Ether at 25 , 1951 .

[17]  Yang Yang,et al.  Interface engineering of highly efficient perovskite solar cells , 2014, Science.

[18]  Anders Hagfeldt,et al.  Cesium-containing triple cation perovskite solar cells: improved stability, reproducibility and high efficiency† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c5ee03874j Click here for additional data file. , 2016, Energy & environmental science.

[19]  N. Park.  Crystal growth engineering for high efficiency perovskite solar cells , 2016 .

[20]  Dane W. deQuilettes,et al.  The Importance of Moisture in Hybrid Lead Halide Perovskite Thin Film Fabrication. , 2015, ACS nano.

[21]  W. A. McConnach,et al.  Uniform , 1963, Definitions.

[22]  Sang Il Seok,et al.  Solvent engineering for high-performance inorganic-organic hybrid perovskite solar cells. , 2014, Nature materials.

[23]  V. Ferreira,et al.  A comparative study of the ability of different solvents and adsorbents to extract aroma compounds from alcoholic beverages. , 2000, Journal of chromatographic science.

[24]  Jinli Yang,et al.  Investigation of CH3NH3PbI3 degradation rates and mechanisms in controlled humidity environments using in situ techniques. , 2015, ACS nano.

[25]  Juan Bisquert,et al.  Control of I-V hysteresis in CH3NH3PbI3 perovskite solar cell. , 2015, The journal of physical chemistry letters.

[26]  Henk J. Bolink,et al.  Perovskite solar cells employing organic charge-transport layers , 2013, Nature Photonics.

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

[28]  Yong Qiu,et al.  Study on the stability of CH3NH3PbI3films and the effect of post-modification by aluminum oxide in all-solid-state hybrid solar cells , 2014 .

[29]  J. Nelson,et al.  Influence of Surface Recombination on Charge-Carrier Kinetics in Organic Bulk Heterojunction Solar Cells with Nickel Oxide Interlayers , 2015 .

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

[31]  Yongzhen Wu,et al.  Annealing-free perovskite films by instant crystallization for efficient solar cells , 2016 .

[32]  J. Haines,et al.  Retraction: Carbon enters silica forming a cristobalite-type CO2–SiO2 solid solution , 2016, Nature Communications.

[33]  Alex K.-Y. Jen,et al.  Low-temperature processed high-performance flexible perovskite solar cells via rationally optimized solvent washing treatments , 2014 .

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

[35]  C. Yuan,et al.  Uniform, stable, and efficient planar-heterojunction perovskite solar cells by facile low-pressure chemical vapor deposition under fully open-air conditions. , 2015, ACS applied materials & interfaces.

[36]  Leone Spiccia,et al.  A fast deposition-crystallization procedure for highly efficient lead iodide perovskite thin-film solar cells. , 2014, Angewandte Chemie.

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

[38]  Martin Schreyer,et al.  Synthesis and crystal chemistry of the hybrid perovskite (CH3NH3) PbI3 for solid-state sensitised solar cell applications , 2013 .

[39]  Zhike Liu,et al.  Efficient and stable perovskite solar cells prepared in ambient air irrespective of the humidity , 2016, Nature Communications.

[40]  M. Grätzel.  The light and shade of perovskite solar cells. , 2014, Nature materials.

[41]  Nam-Gyu Park,et al.  Lewis Acid-Base Adduct Approach for High Efficiency Perovskite Solar Cells. , 2016, Accounts of chemical research.