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

Abstract

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.

Authors:
 [1];  [2];  [3];  [4];  [5];  [2];  [6];  [2]; ORCiD logo [1]
  1. Center for High Pressure Science and Technology Advanced Research Shanghai 201203 China
  2. State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 China
  3. Center for Nanoscale MaterialsArgonne National Laboratory 9700 South Cass Avenue Lemont IL 60439 USA
  4. School of Physics and Electronic EngineeringLinyi University Linyi 276005 P. R. China
  5. Center for High Pressure Science and Technology Advanced Research Shanghai 201203 China, Department of PhysicsFudan University Shanghai 200433 China
  6. Institute of High Energy PhysicsChinese Academy of Sciences Beijing 100049 China
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Natural Science Foundation of China (NSFC); National Key Research and Development Program of China
OSTI Identifier:
1525893
Alternate Identifier(s):
OSTI ID: 1525894; OSTI ID: 1559976
Grant/Contract Number:  
AC02‐06CH11357; AC02-06CH11357
Resource Type:
Published Article
Journal Name:
Advanced Science
Additional Journal Information:
Journal Name: Advanced Science; Journal ID: ISSN 2198-3844
Publisher:
Wiley
Country of Publication:
Germany
Language:
English
Subject:
36 MATERIALS SCIENCE; 2D organic-inorganic halide perovskites; band gap narrowing; carrier lifetime prolongation; high pressure

Citation Formats

Yuan, Ye, Liu, Xiao‐Fei, Ma, Xuedan, Wang, Xiaoli, Li, Xin, Xiao, Juan, Li, Xiaodong, Zhang, Hao‐Li, and Wang, Lin. Large Band Gap Narrowing and Prolonged Carrier Lifetime of (C4H9NH3)2PbI4 under High Pressure. Germany: N. p., 2019. Web. doi:10.1002/advs.201900240.
Yuan, Ye, Liu, Xiao‐Fei, Ma, Xuedan, Wang, Xiaoli, Li, Xin, Xiao, Juan, Li, Xiaodong, Zhang, Hao‐Li, & Wang, Lin. Large Band Gap Narrowing and Prolonged Carrier Lifetime of (C4H9NH3)2PbI4 under High Pressure. Germany. https://doi.org/10.1002/advs.201900240
Yuan, Ye, Liu, Xiao‐Fei, Ma, Xuedan, Wang, Xiaoli, Li, Xin, Xiao, Juan, Li, Xiaodong, Zhang, Hao‐Li, and Wang, Lin. Tue . "Large Band Gap Narrowing and Prolonged Carrier Lifetime of (C4H9NH3)2PbI4 under High Pressure". Germany. https://doi.org/10.1002/advs.201900240.
@article{osti_1525893,
title = {Large Band Gap Narrowing and Prolonged Carrier Lifetime of (C4H9NH3)2PbI4 under High Pressure},
author = {Yuan, Ye and Liu, Xiao‐Fei and Ma, Xuedan and Wang, Xiaoli and Li, Xin and Xiao, Juan and Li, Xiaodong and Zhang, Hao‐Li and Wang, Lin},
abstractNote = {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.},
doi = {10.1002/advs.201900240},
journal = {Advanced Science},
number = ,
volume = ,
place = {Germany},
year = {Tue Jun 11 00:00:00 EDT 2019},
month = {Tue Jun 11 00:00:00 EDT 2019}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/advs.201900240

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