Erbium chloride‐mediated nucleation/crystallization control for high‐performance tin‐based perovskite solar cells

Abstract Tin‐halide perovskite solar cells (THPSCs), while offering low toxicity and high theoretical power conversion efficiency, suffer from inferior device performance compared to lead‐based counterparts. The primary limitations arise from challenges in fabricating high‐quality perovskite films a...

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Main Authors: Du Hyeon Ryu, Jun Hyung Kim, Jorim Okoth Obila, Hyun‐Sung Yun, Seungjin Lee, Bong Joo Kang, Nam Joong Jeon, Ki‐Ha Hong, Jaeki Jeong, Sang Hyuk Im, Chang Eun Song
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:EcoMat
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Online Access:https://doi.org/10.1002/eom2.12500
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author Du Hyeon Ryu
Jun Hyung Kim
Jorim Okoth Obila
Hyun‐Sung Yun
Seungjin Lee
Bong Joo Kang
Nam Joong Jeon
Ki‐Ha Hong
Jaeki Jeong
Sang Hyuk Im
Chang Eun Song
author_facet Du Hyeon Ryu
Jun Hyung Kim
Jorim Okoth Obila
Hyun‐Sung Yun
Seungjin Lee
Bong Joo Kang
Nam Joong Jeon
Ki‐Ha Hong
Jaeki Jeong
Sang Hyuk Im
Chang Eun Song
author_sort Du Hyeon Ryu
collection DOAJ
description Abstract Tin‐halide perovskite solar cells (THPSCs), while offering low toxicity and high theoretical power conversion efficiency, suffer from inferior device performance compared to lead‐based counterparts. The primary limitations arise from challenges in fabricating high‐quality perovskite films and mitigating the oxidation of Sn2+ ions, which leads to severe non‐radiative voltage losses. To address these issues, we incorporate the rare‐earth element erbium chloride (ErCl3) into PEA0.15FA0.70EA0.15SnI2.70Br0.30 perovskite to effectively control the nucleation and crystal growth, significantly influencing the morphology of the perovskite films. As a result, the ErCl3‐processed THPSC exhibits an impressive open‐circuit voltage (VOC) of 0.83 V and power conversion efficiency (PCE) of 14.0% with the superior light and air stability, compared to the control device (VOC = 0.77 V and PCE = 12.8%). This ErCl3‐strategy provides a feasible solution for high‐performance THPSCs by regulating nucleation/crystallization kinetics and mitigating excessive crystal defects during the preparation process of lead‐free perovskites.
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spelling doaj-art-853dd25acaa749208e2bac576e6b7cff2025-08-20T01:56:48ZengWileyEcoMat2567-31732024-12-01612n/an/a10.1002/eom2.12500Erbium chloride‐mediated nucleation/crystallization control for high‐performance tin‐based perovskite solar cellsDu Hyeon Ryu0Jun Hyung Kim1Jorim Okoth Obila2Hyun‐Sung Yun3Seungjin Lee4Bong Joo Kang5Nam Joong Jeon6Ki‐Ha Hong7Jaeki Jeong8Sang Hyuk Im9Chang Eun Song10Photoenergy Research Center Korea Research Institute of Chemical Technology (KRICT) Daejeon Republic of KoreaPhotoenergy Research Center Korea Research Institute of Chemical Technology (KRICT) Daejeon Republic of KoreaPhotoenergy Research Center Korea Research Institute of Chemical Technology (KRICT) Daejeon Republic of KoreaPhotoenergy Research Center Korea Research Institute of Chemical Technology (KRICT) Daejeon Republic of KoreaPhotoenergy Research Center Korea Research Institute of Chemical Technology (KRICT) Daejeon Republic of KoreaPhotoenergy Research Center Korea Research Institute of Chemical Technology (KRICT) Daejeon Republic of KoreaPhotoenergy Research Center Korea Research Institute of Chemical Technology (KRICT) Daejeon Republic of KoreaDepartment of Materials Science and Engineering Hanbat National University Daejeon Republic of KoreaDepartment of Energy Science (DOES) Sungkyunkyan University (SKKU) Suwon Republic of KoreaDepartment of Chemical and Biological Engineering Korea University Seoul Republic of KoreaPhotoenergy Research Center Korea Research Institute of Chemical Technology (KRICT) Daejeon Republic of KoreaAbstract Tin‐halide perovskite solar cells (THPSCs), while offering low toxicity and high theoretical power conversion efficiency, suffer from inferior device performance compared to lead‐based counterparts. The primary limitations arise from challenges in fabricating high‐quality perovskite films and mitigating the oxidation of Sn2+ ions, which leads to severe non‐radiative voltage losses. To address these issues, we incorporate the rare‐earth element erbium chloride (ErCl3) into PEA0.15FA0.70EA0.15SnI2.70Br0.30 perovskite to effectively control the nucleation and crystal growth, significantly influencing the morphology of the perovskite films. As a result, the ErCl3‐processed THPSC exhibits an impressive open‐circuit voltage (VOC) of 0.83 V and power conversion efficiency (PCE) of 14.0% with the superior light and air stability, compared to the control device (VOC = 0.77 V and PCE = 12.8%). This ErCl3‐strategy provides a feasible solution for high‐performance THPSCs by regulating nucleation/crystallization kinetics and mitigating excessive crystal defects during the preparation process of lead‐free perovskites.https://doi.org/10.1002/eom2.12500crystallizationerbium chloridemorphologynucleationsolar cellstin perovskite
spellingShingle Du Hyeon Ryu
Jun Hyung Kim
Jorim Okoth Obila
Hyun‐Sung Yun
Seungjin Lee
Bong Joo Kang
Nam Joong Jeon
Ki‐Ha Hong
Jaeki Jeong
Sang Hyuk Im
Chang Eun Song
Erbium chloride‐mediated nucleation/crystallization control for high‐performance tin‐based perovskite solar cells
EcoMat
crystallization
erbium chloride
morphology
nucleation
solar cells
tin perovskite
title Erbium chloride‐mediated nucleation/crystallization control for high‐performance tin‐based perovskite solar cells
title_full Erbium chloride‐mediated nucleation/crystallization control for high‐performance tin‐based perovskite solar cells
title_fullStr Erbium chloride‐mediated nucleation/crystallization control for high‐performance tin‐based perovskite solar cells
title_full_unstemmed Erbium chloride‐mediated nucleation/crystallization control for high‐performance tin‐based perovskite solar cells
title_short Erbium chloride‐mediated nucleation/crystallization control for high‐performance tin‐based perovskite solar cells
title_sort erbium chloride mediated nucleation crystallization control for high performance tin based perovskite solar cells
topic crystallization
erbium chloride
morphology
nucleation
solar cells
tin perovskite
url https://doi.org/10.1002/eom2.12500
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