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Nontoxic (CH3NH3)3Bi2I9 Bismuth based perovskite solar cells : Improved device performance and stability through morphological tailoring

Sagar Jain, Gerrit Boschloo, James Durrant

Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)(/HOPV18)

Swansea University Author: Sagar Jain

DOI (Published version): 10.29363/nanoge.hopv.2018.001

Abstract

Perovskite solar cells have shown remarkable improvement in certified power conversion efficiency (PCE) [1] of >22%. Nevertheless, many challenges regarding the stability and toxicity of the lead based perovskite material remains at the forefront of current research. The toxicity of lead which is...

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Published in: Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)(/HOPV18)
Published: Benidorm , Spain Hybrid and Organic Photovoltaic Conference 2018 2018
Online Access: http://www.nanoge.org/proceedings/HOPV18/59d0c425bc895b7c77ab0924
URI: https://cronfa.swan.ac.uk/Record/cronfa38993
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spelling 2018-05-08T16:04:13.8190666 v2 38993 2018-03-07 Nontoxic (CH3NH3)3Bi2I9 Bismuth based perovskite solar cells : Improved device performance and stability through morphological tailoring 7073e179bb5b82db3e3efd3a8cd07139 Sagar Jain Sagar Jain true false 2018-03-07 EEN Perovskite solar cells have shown remarkable improvement in certified power conversion efficiency (PCE) [1] of >22%. Nevertheless, many challenges regarding the stability and toxicity of the lead based perovskite material remains at the forefront of current research. The toxicity of lead which is present in a rather water-soluble form in perovskite solar cells remains an environmental concern, that is yet to be resolved. The bismuth based zero-dimensional perovskite shows a high band gap (Eg) ≈ 1.8 eV [2], [3 - 6] which makes it a suitable candidate for application in tandem solar cells. Recently, layered bismuth triiodide (BiI3) has also been used in solar cells as photoactive materials. [7-8] with the highest reported efficiency of 0.3%. [8] However, there are very few attempts to make pure bismuth triiodide based solar cells and also lack in systematic investigation on morphological tailoring, a viable route to fully utilize the potential of this material is to fine-tune the desired composition and properties for CH3NH3I_BiI3 material without any doping. In this direction, we report the vapor assisted solution process (VASP) two-step method to prepare bismuth perovskite samples at different reaction time The samples prepared at an optimum reaction time of 25 minutes exposure of MAI(v) give reproducible power conversion efficiency upto 2 %, (FF = 0.75%, Jsc = 2.9 mA/cm2, VoC = 0.91 V), highest so far reported for methyl amine based bismuth perovskite devices. This work demonstrates the efficacy of the VASP process in producing highly compact films that give improved optoelectronic performance. Conference Paper/Proceeding/Abstract Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)(/HOPV18) Hybrid and Organic Photovoltaic Conference 2018 Benidorm , Spain Dopant free hole transport material, Highly efficient and stable perovskite solar cells 21 2 2018 2018-02-21 10.29363/nanoge.hopv.2018.001 http://www.nanoge.org/proceedings/HOPV18/59d0c425bc895b7c77ab0924 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University RCUK,COAF,Institution 2018-05-08T16:04:13.8190666 2018-03-07T16:45:47.8766128 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Sagar Jain 1 Gerrit Boschloo 2 James Durrant 3 0038993-07032018164830.pdf Dr.SagarJain_HOPV2018.pdf 2018-03-07T16:48:30.5730000 Output 242500 application/pdf Proof true 2018-03-07T00:00:00.0000000 true eng
title Nontoxic (CH3NH3)3Bi2I9 Bismuth based perovskite solar cells : Improved device performance and stability through morphological tailoring
spellingShingle Nontoxic (CH3NH3)3Bi2I9 Bismuth based perovskite solar cells : Improved device performance and stability through morphological tailoring
Sagar Jain
title_short Nontoxic (CH3NH3)3Bi2I9 Bismuth based perovskite solar cells : Improved device performance and stability through morphological tailoring
title_full Nontoxic (CH3NH3)3Bi2I9 Bismuth based perovskite solar cells : Improved device performance and stability through morphological tailoring
title_fullStr Nontoxic (CH3NH3)3Bi2I9 Bismuth based perovskite solar cells : Improved device performance and stability through morphological tailoring
title_full_unstemmed Nontoxic (CH3NH3)3Bi2I9 Bismuth based perovskite solar cells : Improved device performance and stability through morphological tailoring
title_sort Nontoxic (CH3NH3)3Bi2I9 Bismuth based perovskite solar cells : Improved device performance and stability through morphological tailoring
author_id_str_mv 7073e179bb5b82db3e3efd3a8cd07139
author_id_fullname_str_mv 7073e179bb5b82db3e3efd3a8cd07139_***_Sagar Jain
author Sagar Jain
author2 Sagar Jain
Gerrit Boschloo
James Durrant
format Conference Paper/Proceeding/Abstract
container_title Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)(/HOPV18)
publishDate 2018
institution Swansea University
doi_str_mv 10.29363/nanoge.hopv.2018.001
publisher Hybrid and Organic Photovoltaic Conference 2018
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
url http://www.nanoge.org/proceedings/HOPV18/59d0c425bc895b7c77ab0924
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description Perovskite solar cells have shown remarkable improvement in certified power conversion efficiency (PCE) [1] of >22%. Nevertheless, many challenges regarding the stability and toxicity of the lead based perovskite material remains at the forefront of current research. The toxicity of lead which is present in a rather water-soluble form in perovskite solar cells remains an environmental concern, that is yet to be resolved. The bismuth based zero-dimensional perovskite shows a high band gap (Eg) ≈ 1.8 eV [2], [3 - 6] which makes it a suitable candidate for application in tandem solar cells. Recently, layered bismuth triiodide (BiI3) has also been used in solar cells as photoactive materials. [7-8] with the highest reported efficiency of 0.3%. [8] However, there are very few attempts to make pure bismuth triiodide based solar cells and also lack in systematic investigation on morphological tailoring, a viable route to fully utilize the potential of this material is to fine-tune the desired composition and properties for CH3NH3I_BiI3 material without any doping. In this direction, we report the vapor assisted solution process (VASP) two-step method to prepare bismuth perovskite samples at different reaction time The samples prepared at an optimum reaction time of 25 minutes exposure of MAI(v) give reproducible power conversion efficiency upto 2 %, (FF = 0.75%, Jsc = 2.9 mA/cm2, VoC = 0.91 V), highest so far reported for methyl amine based bismuth perovskite devices. This work demonstrates the efficacy of the VASP process in producing highly compact films that give improved optoelectronic performance.
published_date 2018-02-21T03:49:28Z
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