Large Band Gap Narrowing and Prolonged Carrier Lifetime of (C4H9NH3)2PbI4 under High Pressure

Due to their superior optical and electronic properties and good stability, 2D organic–inorganic halide perovskites (OIHPs) exhibit strong potential for optoelectronic applications. However, the large band gap, short carrier lifetime, and high resistance hinder their practical performance. In this work, the band gap is successfully tuned, the carrier lifetime is prolonged, and the resistance of (C4H9NH3)2PbI4 (BA2PbI4) is reduced directly using high pressure. The band gap is decreased to less than 1 eV at 35.0 GPa, and the highest pressure is studied. The carrier lifetime at 9.9 GPa is 20 times longer than that at ambient conditions. Moreover, the resistance is reduced by four orders of magnitude at 34.0 GPa accompanying band gap narrowing. This work indicates that pressure plays an effective role in tuning the optical and electronic structures of BA2PbI4, and also provides a strategy to synthesize high‐performance OIHP materials.

[1]  Xizhe Liu,et al.  Effects of pressure on the ionic transport and photoelectrical properties of CsPbBr3 , 2019, Applied Physics Letters.

[2]  Jiang Tang,et al.  High Pressure Structural and Optical Properties of Two-Dimensional Hybrid Halide Perovskite (CH3NH3)3Bi2Br9. , 2019, Inorganic chemistry.

[3]  T. White,et al.  Pressure-Engineered Structural and Optical Properties of Two-Dimensional (C4H9NH3)2PbI4 Perovskite Exfoliated nm-Thin Flakes. , 2018, Journal of the American Chemical Society.

[4]  Lijun Ji,et al.  Structural evolution and photoluminescence properties of a 2D hybrid perovskite under pressure , 2018, APL Materials.

[5]  Wenge Yang,et al.  High-Pressure Band-Gap Engineering in Lead-Free Cs2 AgBiBr6 Double Perovskite. , 2017, Angewandte Chemie.

[6]  M. Kanatzidis,et al.  Two Regimes of Bandgap Red Shift and Partial Ambient Retention in Pressure-Treated Two-Dimensional Perovskites , 2017 .

[7]  Jinsong Huang,et al.  Understanding the physical properties of hybrid perovskites for photovoltaic applications , 2017 .

[8]  W. Mao,et al.  Pressure-Induced Metallization of the Halide Perovskite (CH3NH3)PbI3. , 2017, Journal of the American Chemical Society.

[9]  Yu Lin,et al.  Between the Sheets: Postsynthetic Transformations in Hybrid Perovskites , 2017 .

[10]  D. Umeyama,et al.  Chemical Approaches to Addressing the Instability and Toxicity of Lead-Halide Perovskite Absorbers. , 2017, Inorganic chemistry.

[11]  Bo Zou,et al.  Pressure-Induced Structural Evolution and Band Gap Shifts of Organometal Halide Perovskite-Based Methylammonium Lead Chloride. , 2016, The journal of physical chemistry letters.

[12]  Jesse S. Smith,et al.  Enhanced Structural Stability and Photo Responsiveness of CH3NH3SnI3 Perovskite via Pressure‐Induced Amorphization and Recrystallization , 2016, Advanced materials.

[13]  Wenge Yang,et al.  Simultaneous band-gap narrowing and carrier-lifetime prolongation of organic–inorganic trihalide perovskites , 2016, Proceedings of the National Academy of Sciences.

[14]  Bo Zou,et al.  Pressure-Induced Structural and Optical Properties of Organometal Halide Perovskite-Based Formamidinium Lead Bromide. , 2016, The journal of physical chemistry letters.

[15]  M. Saidaminov,et al.  The In‐Gap Electronic State Spectrum of Methylammonium Lead Iodide Single‐Crystal Perovskites , 2016, Advanced materials.

[16]  A. Di Carlo,et al.  In situ observation of heat-induced degradation of perovskite solar cells , 2016, Nature Energy.

[17]  X. Lü,et al.  Pressure-Induced Phase Transformation, Reversible Amorphization, and Anomalous Visible Light Response in Organolead Bromide Perovskite. , 2015, Journal of the American Chemical Society.

[18]  Ruipeng Li,et al.  Pressure Processing of Nanocube Assemblies Toward Harvesting of a Metastable PbS Phase , 2015, Advanced materials.

[19]  Yang Yang,et al.  Under the spotlight: The organic–inorganic hybrid halide perovskite for optoelectronic applications , 2015 .

[20]  D. Ginger,et al.  Impact of microstructure on local carrier lifetime in perovskite solar cells , 2015, Science.

[21]  Guangda Niu,et al.  Review of recent progress in chemical stability of perovskite solar cells , 2015 .

[22]  W. Mao,et al.  Pressure-induced conductivity and yellow-to-black piezochromism in a layered Cu-Cl hybrid perovskite. , 2015, Journal of the American Chemical Society.

[23]  Young Chan Kim,et al.  Compositional engineering of perovskite materials for high-performance solar cells , 2015, Nature.

[24]  J. Even,et al.  Understanding quantum confinement of charge carriers in layered 2D hybrid perovskites. , 2014, Chemphyschem : a European journal of chemical physics and physical chemistry.

[25]  Eric T. Hoke,et al.  A layered hybrid perovskite solar-cell absorber with enhanced moisture stability. , 2014, Angewandte Chemie.

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

[27]  Aron Walsh,et al.  Atomistic Origins of High-Performance in Hybrid Halide Perovskite Solar Cells , 2014, Nano letters.

[28]  Yanfa Yan,et al.  Unusual defect physics in CH3NH3PbI3 perovskite solar cell absorber , 2014 .

[29]  G. Hodes.  Perovskite-Based Solar Cells , 2013, Science.

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

[31]  Mercouri G Kanatzidis,et al.  Semiconducting tin and lead iodide perovskites with organic cations: phase transitions, high mobilities, and near-infrared photoluminescent properties. , 2013, Inorganic chemistry.

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

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

[34]  T. Hanrath,et al.  Comparing the structural stability of PbS nanocrystals assembled in fcc and bcc superlattice allotropes. , 2012, Journal of the American Chemical Society.

[35]  D. Billing,et al.  Synthesis, characterization and phase transitions of the inorganic-organic layered perovskite-type hybrids [(C(n)H(2n+1)NH3)2PbI4], n = 7, 8, 9 and 10. , 2012, Dalton transactions.

[36]  H. Fan,et al.  Deviatoric stress driven formation of large single-crystal PbS nanosheet from nanoparticles and in situ monitoring of oriented attachment. , 2011, Journal of the American Chemical Society.

[37]  G. Cantele,et al.  Ab initio investigation of hybrid organic-inorganic perovskites based on tin halides , 2008 .

[38]  D. Billing,et al.  Synthesis, characterization and phase transitions in the inorganic-organic layered perovskite-type hybrids [(CnH2n+1NH3)2PbI4], n = 4, 5 and 6. , 2007, Acta crystallographica. Section B, Structural science.

[39]  Ling Huang,et al.  An electrochemical impedance spectroscopic study of the electronic and ionic transport properties of LiCoO2 cathode , 2007 .

[40]  F. Nobili,et al.  An ac impedance spectroscopic study of Mg-doped LiCoO2 at different temperatures: electronic and ionic transport properties , 2005 .

[41]  C. H. Park,et al.  Optical properties and structural phase transitions of lead‐halide based inorganic–organic 3D and 2D perovskite semiconductors under high pressure , 2004 .

[42]  Yoshihiro Furukawa,et al.  Chloride ion conductor CH3NH3GeCl3 studied by Rietveld analysis of X-ray diffraction and 35Cl NMR , 1995 .

[43]  Teruya Ishihara,et al.  Optical properties of PbI-based perovskite structures , 1994 .

[44]  H. Queisser,et al.  Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells , 1961 .

[45]  Wenge Yang,et al.  Pressure‐Induced Bandgap Optimization in Lead‐Based Perovskites with Prolonged Carrier Lifetime and Ambient Retainability , 2017 .

[46]  H. Mao,et al.  Excitonic states of alkylammonium lead-iodide layered perovskite semiconductors under hydrostatic pressure to 25 GPa , 2001 .