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Title: Stable Light-Emitting Diodes Using Phase-Pure Ruddlesden-Popper Layered Perovskites

State-of-the-art light-emitting diodes (LEDs) are made from high-purity alloys of III–V semiconductors, but high fabrication cost has limited their widespread use for large area solid-state lighting. Here in this paper, efficient and stable LEDs processed from solution with tunable color enabled by using phase-pure 2D Ruddlesden–Popper (RP) halide perovskites with a formula (CH 3(CH 2) 3NH 3) 2(CH 3NH 3) n-1Pb nI 3n+1 are reported. By using vertically oriented thin films that facilitate efficient charge injection and transport, efficient electroluminescence with a radiance of 35 W Sr -1 cm -2 at 744 nm with an ultralow turn-on voltage of 1 V is obtained. Finally, operational stability tests suggest that phase purity is strongly correlated to stability. Finally, phase-pure 2D perovskites exhibit >14 h of stable operation at peak operating conditions with no droop at current densities of several Amperes cm -2 in comparison to mixtures of 2D/3D or 3D perovskites, which degrade within minutes.
Authors:
ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ;  [2] ;  [2] ; ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ;  [3] ;  [4] ;  [5] ;  [5] ;  [6] ;  [5] ;  [7] ;  [4] ;  [2] ; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Northwestern Univ., Evanston, IL (United States)
  3. INSA de Rennes (France)
  4. Univ. of Cambridge (United Kingdom)
  5. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  6. Rice Univ., Houston, TX (United States)
  7. Univ. of Cambridge (United Kingdom); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Publication Date:
Report Number(s):
LA-UR-17-24972
Journal ID: ISSN 0935-9648
Grant/Contract Number:
AC52-06NA25396; AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 30; Journal Issue: 6; Journal ID: ISSN 0935-9648
Publisher:
Wiley
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; color tunability; crystal orientation; LEDs; Ruddlesden–Popper layered perovskites
OSTI Identifier:
1467327
Alternate Identifier(s):
OSTI ID: 1415501

Tsai, Hsinhan, Nie, Wanyi, Blancon, Jean-Christophe, Stomps, Constantinos C., Soe, Chan, Yoo, Jinkyoung, Crochet, Jared, Tretiak, Sergei, Even, Jacky, Sadhanala, Aditya, Azzerino, Giovanni, Bienes, Roberto, Ajayan, Pulickel M., Bulimic, Vladimir, Stranks, Samuel D., Friend, Richard H., Kanatzidis, Mercouri G., and Mohite, Aditya. Stable Light-Emitting Diodes Using Phase-Pure Ruddlesden-Popper Layered Perovskites. United States: N. p., Web. doi:10.1002/adma.201704217.
Tsai, Hsinhan, Nie, Wanyi, Blancon, Jean-Christophe, Stomps, Constantinos C., Soe, Chan, Yoo, Jinkyoung, Crochet, Jared, Tretiak, Sergei, Even, Jacky, Sadhanala, Aditya, Azzerino, Giovanni, Bienes, Roberto, Ajayan, Pulickel M., Bulimic, Vladimir, Stranks, Samuel D., Friend, Richard H., Kanatzidis, Mercouri G., & Mohite, Aditya. Stable Light-Emitting Diodes Using Phase-Pure Ruddlesden-Popper Layered Perovskites. United States. doi:10.1002/adma.201704217.
Tsai, Hsinhan, Nie, Wanyi, Blancon, Jean-Christophe, Stomps, Constantinos C., Soe, Chan, Yoo, Jinkyoung, Crochet, Jared, Tretiak, Sergei, Even, Jacky, Sadhanala, Aditya, Azzerino, Giovanni, Bienes, Roberto, Ajayan, Pulickel M., Bulimic, Vladimir, Stranks, Samuel D., Friend, Richard H., Kanatzidis, Mercouri G., and Mohite, Aditya. 2018. "Stable Light-Emitting Diodes Using Phase-Pure Ruddlesden-Popper Layered Perovskites". United States. doi:10.1002/adma.201704217.
@article{osti_1467327,
title = {Stable Light-Emitting Diodes Using Phase-Pure Ruddlesden-Popper Layered Perovskites},
author = {Tsai, Hsinhan and Nie, Wanyi and Blancon, Jean-Christophe and Stomps, Constantinos C. and Soe, Chan and Yoo, Jinkyoung and Crochet, Jared and Tretiak, Sergei and Even, Jacky and Sadhanala, Aditya and Azzerino, Giovanni and Bienes, Roberto and Ajayan, Pulickel M. and Bulimic, Vladimir and Stranks, Samuel D. and Friend, Richard H. and Kanatzidis, Mercouri G. and Mohite, Aditya},
abstractNote = {State-of-the-art light-emitting diodes (LEDs) are made from high-purity alloys of III–V semiconductors, but high fabrication cost has limited their widespread use for large area solid-state lighting. Here in this paper, efficient and stable LEDs processed from solution with tunable color enabled by using phase-pure 2D Ruddlesden–Popper (RP) halide perovskites with a formula (CH3(CH2)3NH3)2(CH3NH3)n-1PbnI3n+1 are reported. By using vertically oriented thin films that facilitate efficient charge injection and transport, efficient electroluminescence with a radiance of 35 W Sr-1 cm-2 at 744 nm with an ultralow turn-on voltage of 1 V is obtained. Finally, operational stability tests suggest that phase purity is strongly correlated to stability. Finally, phase-pure 2D perovskites exhibit >14 h of stable operation at peak operating conditions with no droop at current densities of several Amperes cm-2 in comparison to mixtures of 2D/3D or 3D perovskites, which degrade within minutes.},
doi = {10.1002/adma.201704217},
journal = {Advanced Materials},
number = 6,
volume = 30,
place = {United States},
year = {2018},
month = {1}
}

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