Nanopatterned poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) layers fabricated by soft-nanoimprint were applied to CH3NH3PbBr3 (MAPbBr3) light-emitting diodes to enhance light extraction. The electric field distribution of MAPbBr3 devices with different periods of the nanopatterned PEDOT:PSS was calculated using the finite-difference time-domain method, demonstrating that the 400-nm period was more effective in improving light outcoupling. By integrating the nanopatterned PEDOT:PSS layer, the external quantum efficiency of the device increased from 6.5% to 10.3%. It can be attributed to the fact that the nanopatterned structure reduced the refractive index discontinuity at the interface between MAPbBr3 and PEDOT:PSS, thereby reducing light trapping in the waveguide mode.
Skip Nav Destination
Article navigation
6 December 2021
Research Article|
December 08 2021
Light extraction efficiency enhancement of CH3NH3PbBr3 light-emitting diodes using nanopatterned PEDOT:PSS layers
Shukun Weng
;
Shukun Weng
1
Mathematics and Science College, Shanghai Normal University
, Shanghai 200234, China
Search for other works by this author on:
Min Sun;
Min Sun
1
Mathematics and Science College, Shanghai Normal University
, Shanghai 200234, China
Search for other works by this author on:
Liping Zhang
;
Liping Zhang
2
Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences (CAS)
, Shanghai 201800, China
Search for other works by this author on:
Lubing Jiang;
Lubing Jiang
1
Mathematics and Science College, Shanghai Normal University
, Shanghai 200234, China
Search for other works by this author on:
Chao Shi;
Chao Shi
1
Mathematics and Science College, Shanghai Normal University
, Shanghai 200234, China
Search for other works by this author on:
Weijie Du
;
Weijie Du
a)
1
Mathematics and Science College, Shanghai Normal University
, Shanghai 200234, China
Search for other works by this author on:
Yiwen Zhang
Yiwen Zhang
a)
1
Mathematics and Science College, Shanghai Normal University
, Shanghai 200234, China
Search for other works by this author on:
Note: This paper is part of the APL Special Collection on New Solution-processed Perovskites and Perovskite-inspired Optoelectronic Materials and Devices.
Appl. Phys. Lett. 119, 233302 (2021)
Article history
Received:
October 06 2021
Accepted:
November 23 2021
Citation
Shukun Weng, Min Sun, Liping Zhang, Lubing Jiang, Chao Shi, Weijie Du, Yiwen Zhang; Light extraction efficiency enhancement of CH3NH3PbBr3 light-emitting diodes using nanopatterned PEDOT:PSS layers. Appl. Phys. Lett. 6 December 2021; 119 (23): 233302. https://doi.org/10.1063/5.0074125
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Sign in via your Institution
Sign in via your InstitutionPay-Per-View Access
$40.00