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Title: Effect of Rubidium Incorporation on the Structural, Electrical, and Photovoltaic Properties of Methylammonium Lead Iodide-Based Perovskite Solar Cells

Abstract

We report the electrical properties of rubidium-incorporated methylammonium lead iodide ((RbxMA1-x)PbI3) films and the photovoltaic performance of (RbxMA1-x)PbI3 film-based p-i-n-type perovskite solar cells (PSCs). The incorporation of a small amount of Rb+ (x = 0.05) increases both the open circuit voltage (Voc) and the short circuit photocurrent density (Jsc) of the PSCs, leading to an improved power conversion efficiency (PCE). However, a high fraction of Rb+ incorporation (x = 0.1 and 0.2) decreases the Jsc and thus the PCE, which is attributed to the phase segregation of the single tetragonal perovskite phase to a MA-rich tetragonal perovskite phase and a RbPbI3 orthorhombic phase at high Rb fractions. Conductive atomic force microscopic and admittance spectroscopic analyses reveal that the single-phase (Rb0.05MA0.95)PbI3 film has a high electrical conductivity because of a reduced deep-level trap density. We also found that Rb substitution enhances the diode characteristics of the PSC, as evidenced by the reduced reverse saturation current (J0). The optimized (RbxMA1-x)PbI3 PSCs exhibited a PCE of 18.8% with negligible hysteresis in the photocurrent-voltage curve. The results from this work enhance the understanding of the effect of Rb incorporation into organic-inorganic hybrid halide perovskites and enable the exploration of Rb-incorporated mixed perovskites for variousmore » applications, such as solar cells, photodetectors, and light-emitting diodes.« less

Authors:
 [1];  [2];  [1];  [3];  [4]; ORCiD logo [4];  [2]; ORCiD logo [1]
  1. Seoul National Univ. (Korea, Republic of). Dept. of Materials Science and Engineering
  2. Sungkyunkwan Univ., Suwon (Republic of Korea). Dept. of Energy Science
  3. Kyungpook National Univ., Daegu (Korea, Republic of). School of Materials Science and Engineering
  4. National Renewable Energy Lab. (NREL), Golden, CO (United States). Chemistry and Nanoscience Center
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); National Research Foundation of Korea (NRF); Korea Institute of Energy Technology Evaluation and Planning (KETEP)
OSTI Identifier:
1411135
Report Number(s):
NREL/JA-5900-70572
Journal ID: ISSN 1944-8244; TRN: US1800177
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 9; Journal Issue: 48; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; conductivity; methylammonium lead halides; rubidium; solar cells; trap density of states

Citation Formats

Park, Ik Jae, Seo, Seongrok, Park, Min Ah, Lee, Sangwook, Kim, Dong Hoe, Zhu, Kai, Shin, Hyunjung, and Kim, Jin Young. Effect of Rubidium Incorporation on the Structural, Electrical, and Photovoltaic Properties of Methylammonium Lead Iodide-Based Perovskite Solar Cells. United States: N. p., 2017. Web. doi:10.1021/acsami.7b13947.
Park, Ik Jae, Seo, Seongrok, Park, Min Ah, Lee, Sangwook, Kim, Dong Hoe, Zhu, Kai, Shin, Hyunjung, & Kim, Jin Young. Effect of Rubidium Incorporation on the Structural, Electrical, and Photovoltaic Properties of Methylammonium Lead Iodide-Based Perovskite Solar Cells. United States. https://doi.org/10.1021/acsami.7b13947
Park, Ik Jae, Seo, Seongrok, Park, Min Ah, Lee, Sangwook, Kim, Dong Hoe, Zhu, Kai, Shin, Hyunjung, and Kim, Jin Young. Fri . "Effect of Rubidium Incorporation on the Structural, Electrical, and Photovoltaic Properties of Methylammonium Lead Iodide-Based Perovskite Solar Cells". United States. https://doi.org/10.1021/acsami.7b13947. https://www.osti.gov/servlets/purl/1411135.
@article{osti_1411135,
title = {Effect of Rubidium Incorporation on the Structural, Electrical, and Photovoltaic Properties of Methylammonium Lead Iodide-Based Perovskite Solar Cells},
author = {Park, Ik Jae and Seo, Seongrok and Park, Min Ah and Lee, Sangwook and Kim, Dong Hoe and Zhu, Kai and Shin, Hyunjung and Kim, Jin Young},
abstractNote = {We report the electrical properties of rubidium-incorporated methylammonium lead iodide ((RbxMA1-x)PbI3) films and the photovoltaic performance of (RbxMA1-x)PbI3 film-based p-i-n-type perovskite solar cells (PSCs). The incorporation of a small amount of Rb+ (x = 0.05) increases both the open circuit voltage (Voc) and the short circuit photocurrent density (Jsc) of the PSCs, leading to an improved power conversion efficiency (PCE). However, a high fraction of Rb+ incorporation (x = 0.1 and 0.2) decreases the Jsc and thus the PCE, which is attributed to the phase segregation of the single tetragonal perovskite phase to a MA-rich tetragonal perovskite phase and a RbPbI3 orthorhombic phase at high Rb fractions. Conductive atomic force microscopic and admittance spectroscopic analyses reveal that the single-phase (Rb0.05MA0.95)PbI3 film has a high electrical conductivity because of a reduced deep-level trap density. We also found that Rb substitution enhances the diode characteristics of the PSC, as evidenced by the reduced reverse saturation current (J0). The optimized (RbxMA1-x)PbI3 PSCs exhibited a PCE of 18.8% with negligible hysteresis in the photocurrent-voltage curve. The results from this work enhance the understanding of the effect of Rb incorporation into organic-inorganic hybrid halide perovskites and enable the exploration of Rb-incorporated mixed perovskites for various applications, such as solar cells, photodetectors, and light-emitting diodes.},
doi = {10.1021/acsami.7b13947},
journal = {ACS Applied Materials and Interfaces},
number = 48,
volume = 9,
place = {United States},
year = {2017},
month = {11}
}

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