A Dual Layer of NiOx Hole-Transporting Material Boosting the Efficiency of Inverted Perovskite Solar Cells up to 20.7%

IF 5.4 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2025-04-07 DOI:10.1021/acsaem.5c0031210.1021/acsaem.5c00312

Da-Wei Kuo, and , Chin-Ti Chen*,

{"title":"A Dual Layer of NiOx Hole-Transporting Material Boosting the Efficiency of Inverted Perovskite Solar Cells up to 20.7%","authors":"Da-Wei Kuo,  and , Chin-Ti Chen*, ","doi":"10.1021/acsaem.5c0031210.1021/acsaem.5c00312","DOIUrl":null,"url":null,"abstract":"For the hole transport material (HTM) of methylammonium lead(II) triiodide (MAPbI3)-inverted perovskite solar cells (PVSCs), we have demonstrated that a dual layer of NiOx, a nanoporous NiOx (np-NiOx) on a compact NiOx (cp-NiOx), outperforms a single layer of cp-NiOx. With a dual layer of cp/np-NiOx HTM, we have achieved a PCE as high as 20.7%, which is one of the highest PCEs among inverted PVSCs using NiOx as HTM without doping NiOx or an interlayer between NiOx and the perovskite. In this report, scanning electron microscopy (SEM), atomic force microscopy (AFM), and photoluminescence (PL) spectroscopy have demonstrated that the interfacial contact of MAPbI3 is better with np-NiOx than with cp-NiOx. Direct current conductivity measurements showed a higher conductivity of cp/np-NiOx compared to cp-NiOx. A deeper HOMO energy level was found for cp/np-NiOx compared to cp-NiOx. The space-charge limited current (SCLC) method estimated a higher trap-state density in cp-NiOx than in cp/np-NiOx. The studies of light intensity-dependent open-circuit voltage (VOC) and short-circuit current density (JSC) revealed a less charge recombination in cp/np-NiOx than in cp-NiOx PVSCs. We have also found and verified that using a larger volume of the ethylenediamine stabilizer in the preparation of np-NiOx results in a higher-performance cp/np-NiOx HTM.","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 8","pages":"5309–5316 5309–5316"},"PeriodicalIF":5.4000,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsaem.5c00312","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Energy Materials","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsaem.5c00312","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

For the hole transport material (HTM) of methylammonium lead(II) triiodide (MAPbI₃)-inverted perovskite solar cells (PVSCs), we have demonstrated that a dual layer of NiO_x, a nanoporous NiO_x (np-NiO_x) on a compact NiO_x (cp-NiO_x), outperforms a single layer of cp-NiO_x. With a dual layer of cp/np-NiO_x HTM, we have achieved a PCE as high as 20.7%, which is one of the highest PCEs among inverted PVSCs using NiO_x as HTM without doping NiO_x or an interlayer between NiO_x and the perovskite. In this report, scanning electron microscopy (SEM), atomic force microscopy (AFM), and photoluminescence (PL) spectroscopy have demonstrated that the interfacial contact of MAPbI₃ is better with np-NiO_x than with cp-NiO_x. Direct current conductivity measurements showed a higher conductivity of cp/np-NiO_x compared to cp-NiO_x. A deeper HOMO energy level was found for cp/np-NiO_x compared to cp-NiO_x. The space-charge limited current (SCLC) method estimated a higher trap-state density in cp-NiO_x than in cp/np-NiO_x. The studies of light intensity-dependent open-circuit voltage (V_OC) and short-circuit current density (J_SC) revealed a less charge recombination in cp/np-NiO_x than in cp-NiO_x PVSCs. We have also found and verified that using a larger volume of the ethylenediamine stabilizer in the preparation of np-NiO_x results in a higher-performance cp/np-NiO_x HTM.

查看原文本刊更多论文

双层NiOx空穴传输材料将倒置钙钛矿太阳能电池效率提高至20.7%

对于三碘化甲基铵铅(II) -倒钙钛矿太阳能电池（PVSCs）的空穴传输材料（HTM），我们已经证明了双层NiOx，在致密NiOx （cp-NiOx）上的纳米多孔NiOx （np-NiOx）优于单层cp-NiOx。通过双层cp/np-NiOx HTM，我们获得了高达20.7%的PCE，这是使用NiOx作为HTM的倒置PVSCs中最高的PCE之一，而不掺杂NiOx或NiOx与钙钛矿之间的中间层。通过扫描电镜（SEM）、原子力显微镜（AFM）和光致发光（PL）光谱分析表明，MAPbI3与np-NiOx的界面接触优于与cp-NiOx的界面接触。直流电导率测量表明，cp/np-NiOx的电导率高于cp- niox。cp/np-NiOx比cp- niox具有更高的HOMO能级。空间电荷限制电流（SCLC）方法估计cp- niox的阱态密度高于cp/np-NiOx。通过对光强依赖性开路电压（VOC）和短路电流密度（JSC）的研究发现，cp/np-NiOx的PVSCs比cp- niox的PVSCs具有更少的电荷重组。我们还发现并验证了在制备np-NiOx时使用更大体积的乙二胺稳定剂可以获得更高性能的cp/np-NiOx HTM。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.