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Title: Stable p-i-n FAPbBr3 devices with improved efficiency using sputtered ZnO as electron transport layer [Stable p-i-n FAPbBr3 devices with improved efficiency using sputtered inorganic electron transport layer]

Abstract

Here, radio-frequency magnetron sputtering is demonstrated as an effective tool to deposit highly crystalline thin zinc oxide (ZnO) layer directly on perovskite absorber as an electron transport layer (ETL). As an absorber, formamidinium lead tribromide (FAPbBr3) is fabricated through a modified single-step solution process using hydrogen bromide (HBr) as an additive resulting in complete surface coverage and highly crystalline material. A planar p-i-n device architecture with spin-coated poly-(3,4-ethylenedioxythiophene):poly-styrenesulfonic acid (PEDOT:PSS) as hole transport material (HTM) and sputtered ZnO as ETL results in a short circuit current density of 9.5 mA cm-2 and an open circuit potential of 1.19 V. Numerical simulations are performed to validate the underlying loss mechanisms. The use of phenyl C60 butyric acid methyl ester (PCBM) interface layer between FAPbBr3 and sputter-coated ZnO offers shielding from potential plasma-related interface damage. The modified interface results in a better device efficiency of 8.3% with an open circuit potential of 1.35 V. Such devices offer better stability under continuous illumination under ambient conditions in comparison with the conventional organic ETL (PCBM)-based devices.

Authors:
 [1];  [1];  [1];  [1];  [2];  [1]
  1. IIT Bombay, Mumbai (India)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
OSTI Identifier:
1353425
Alternate Identifier(s):
OSTI ID: 1400608
Report Number(s):
NREL/JA-5K00-68057
Journal ID: ISSN 2196-7350
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
Advanced Materials Interfaces
Additional Journal Information:
Journal Volume: 4; Journal Issue: 8; Journal ID: ISSN 2196-7350
Publisher:
Wiley-VCH
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; FAPbBr3; inorganic electron transport layer; PCBM; sputtering; stability; ZnO

Citation Formats

Subbiah, Anand S., Agarwal, Sumanshu, Mahuli, Neha, Nair, Pradeep, van Hest, Maikel, and Sarkar, Shaibal K. Stable p-i-n FAPbBr3 devices with improved efficiency using sputtered ZnO as electron transport layer [Stable p-i-n FAPbBr3 devices with improved efficiency using sputtered inorganic electron transport layer]. United States: N. p., 2017. Web. doi:10.1002/admi.201601143.
Subbiah, Anand S., Agarwal, Sumanshu, Mahuli, Neha, Nair, Pradeep, van Hest, Maikel, & Sarkar, Shaibal K. Stable p-i-n FAPbBr3 devices with improved efficiency using sputtered ZnO as electron transport layer [Stable p-i-n FAPbBr3 devices with improved efficiency using sputtered inorganic electron transport layer]. United States. doi:10.1002/admi.201601143.
Subbiah, Anand S., Agarwal, Sumanshu, Mahuli, Neha, Nair, Pradeep, van Hest, Maikel, and Sarkar, Shaibal K. Fri . "Stable p-i-n FAPbBr3 devices with improved efficiency using sputtered ZnO as electron transport layer [Stable p-i-n FAPbBr3 devices with improved efficiency using sputtered inorganic electron transport layer]". United States. doi:10.1002/admi.201601143. https://www.osti.gov/servlets/purl/1353425.
@article{osti_1353425,
title = {Stable p-i-n FAPbBr3 devices with improved efficiency using sputtered ZnO as electron transport layer [Stable p-i-n FAPbBr3 devices with improved efficiency using sputtered inorganic electron transport layer]},
author = {Subbiah, Anand S. and Agarwal, Sumanshu and Mahuli, Neha and Nair, Pradeep and van Hest, Maikel and Sarkar, Shaibal K.},
abstractNote = {Here, radio-frequency magnetron sputtering is demonstrated as an effective tool to deposit highly crystalline thin zinc oxide (ZnO) layer directly on perovskite absorber as an electron transport layer (ETL). As an absorber, formamidinium lead tribromide (FAPbBr3) is fabricated through a modified single-step solution process using hydrogen bromide (HBr) as an additive resulting in complete surface coverage and highly crystalline material. A planar p-i-n device architecture with spin-coated poly-(3,4-ethylenedioxythiophene):poly-styrenesulfonic acid (PEDOT:PSS) as hole transport material (HTM) and sputtered ZnO as ETL results in a short circuit current density of 9.5 mA cm-2 and an open circuit potential of 1.19 V. Numerical simulations are performed to validate the underlying loss mechanisms. The use of phenyl C60 butyric acid methyl ester (PCBM) interface layer between FAPbBr3 and sputter-coated ZnO offers shielding from potential plasma-related interface damage. The modified interface results in a better device efficiency of 8.3% with an open circuit potential of 1.35 V. Such devices offer better stability under continuous illumination under ambient conditions in comparison with the conventional organic ETL (PCBM)-based devices.},
doi = {10.1002/admi.201601143},
journal = {Advanced Materials Interfaces},
number = 8,
volume = 4,
place = {United States},
year = {2017},
month = {2}
}

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