EcoMat Pub Date : 2023-08-24 DOI: 10.1002/eom2.12406

Yongjin Kim, Hyeonmin Choi, Jonghoon Lee, Young-Kwang Jung, Joonha Jung, Jaeyoon Cho, Takhee Lee, Keehoon Kang

{"title":"Unlocking the potential of metal halide perovskite thermoelectrics through electrical doping: A critical review","authors":"Yongjin Kim, Hyeonmin Choi, Jonghoon Lee, Young-Kwang Jung, Joonha Jung, Jaeyoon Cho, Takhee Lee, Keehoon Kang","doi":"10.1002/eom2.12406","DOIUrl":"10.1002/eom2.12406","url":null,"abstract":"<p>Over the past decade, metal halide perovskites (MHPs) have received great attention, triggered by the tremendous success of their record-breaking power conversion efficiency values in solar cells. Recently, there have been significant interests in fully utilizing their unique properties by exploring other device applications including thermoelectrics, which is promising due to their ultralow thermal conductivity and high mobility relative to their competitors among solution-processable materials. However, the performance of MHP thermoelectrics reported so far falls significantly short of theoretical predictions, as the doping levels achieved to date are typically below the optimum values for maximizing the thermoelectric power factor, indicating the need for effective electrical doping strategies. In this critical review, recent studies aimed at enhancing the thermoelectric properties of MHPs are discussed, with a focus on the relatively under-explored area of electrical doping in MHPs. The underlying charge transport mechanism and doping effect on transport are also examined. Finally, the challenges facing MHP thermoelectrics are highlighted, and potential research visions for achieving highly efficient thermoelectric conversion based on MHPs are offered.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"5 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12406","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46104115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication processes for all-inorganic CsPbBr3 perovskite solar cells 全无机CsPbBr3钙钛矿太阳能电池的制备工艺

EcoMat Pub Date : 2023-08-22 DOI: 10.1002/eom2.12407

Jin Ho Park, Young Seon Yoon, Jin Young Kim

引用次数: 0

Rational design of bi‐phase CaV2O6/NaV6O15 cathode materials for long‐life aqueous zinc batteries 长寿命锌水电池用双相CaV2O6/NaV6O15正极材料的合理设计

EcoMat Pub Date : 2023-08-22 DOI: 10.1002/eom2.12409

Y. Liu, Yi Liu, Xiang Wu

引用次数: 2

A self‐adhesive bark veneer for all‐natural plywood 用于全天然胶合板的自粘树皮单板

EcoMat Pub Date : 2023-08-14 DOI: 10.1002/eom2.12405

Zhongxuan Wu, Yan Zhan, Shuaiming He, Panpan Yue, Guanghui Song, J. Rao, Zi-wen Lv, Bo Jiang, Baozhong Lü, Gegu Chen, Feng Peng

引用次数: 0

Chelating resin encapsulation for reduced Pb leakage in perovskite solar cells 螯合树脂封装降低钙钛矿太阳能电池铅泄漏

EcoMat Pub Date : 2023-08-04 DOI: 10.1002/eom2.12400

Qingrui Wang, Zhenhua Lin, Yumeng Xu, Boyao Zhang, Xing Guo, Zhaosheng Hu, Yue Hao, Jingjing Chang

{"title":"Chelating resin encapsulation for reduced Pb leakage in perovskite solar cells","authors":"Qingrui Wang, Zhenhua Lin, Yumeng Xu, Boyao Zhang, Xing Guo, Zhaosheng Hu, Yue Hao, Jingjing Chang","doi":"10.1002/eom2.12400","DOIUrl":"10.1002/eom2.12400","url":null,"abstract":"<p>Although perovskite solar cells have achieved efficiency over 25%, the toxic of Pb content remains severe problem given its commercial prospect. Especially when the devices suffer harsh weather, the Pb content can easily leak out to soil and water. Chelating resins (CRs) exhibit excellent superiority in treating waste water in industrial field, since the functional groups in CRs can adsorb divalent metal ion to soften and purify waste water. Herein, an iminodiacetic acid (IDA)-CR is introduced as encapsulation over perovskite solar cells for the first time. The IDA-CR exhibits high surface area and excellent adsorption capability. Qualitative and quantitative analysis of Pb leakage are studied, and the devices with encapsulation of IDA-CR can detain over 90% of Pb compared with control devices without encapsulation after immersed in deionized water for 12 h even in acid situation or after heating. This IDA-CR method provides a new strategy towards environmental and biological-friendly perovskite optoelectronic devices.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"5 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12400","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47655315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Irreversible phase back conversion of α-FAPbI3 driven by lithium-ion migration in perovskite solar cells 钙钛矿太阳能电池中锂离子迁移驱动的α-FAPbI3的不可逆相反转换

EcoMat Pub Date : 2023-08-02 DOI: 10.1002/eom2.12398

Seung-Gu Choi, Jin-Wook Lee

{"title":"Irreversible phase back conversion of α-FAPbI3 driven by lithium-ion migration in perovskite solar cells","authors":"Seung-Gu Choi, Jin-Wook Lee","doi":"10.1002/eom2.12398","DOIUrl":"10.1002/eom2.12398","url":null,"abstract":"<p>Typically n-i-p structured perovskite solar cells (PSCs) incorporate 2,2′,7,7′-tetrakis (<i>N</i>,<i>N</i>-di-<i>p</i>-methoxyphenyl amine)-9,9′-spirobifluorene (spiro-OMeTAD) as the hole-transporting material. Chemical doping of spiro-OMeTAD involves a lithium bis(trifluoromethyl sulfonyl)imide dopant, causing complex side-reactions that affect the device performance, which are not fully understood. Here, we investigate the aging-dependent device performance of widely used formamidinium lead triiodide (FAPbI<sub>3</sub>)-based PSCs correlated with lithium-ion (Li<sup>+</sup>) migration. Comprehensive analyses reveal that Li<sup>+</sup> ions migrate from spiro-OMeTAD to perovskite, SnO<sub>2</sub>, and their interfaces to induce the phase-back conversion of α-FAPbI<sub>3</sub> to δ-FAPbI<sub>3</sub>, generation and migration of iodine defects, and de-doping of spiro-OMeTAD. The rapid performance drop of FAPbI<sub>3</sub>-based PSCs, even aging under dark conditions, is attributed to a series of these processes. This study identifies the hidden side effects of Li<sup>+</sup> ion migration in FAPbI<sub>3</sub>-based PSCs that can guide further work to maximize the operational stability of PSCs.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"5 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12398","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45810660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aesthetic and efficient perovskite/Si tandem solar cells using luminescent down-shifting textured anti-reflection films 使用发光下移纹理防反射膜的美观高效的钙钛矿/Si串联太阳能电池

EcoMat Pub Date : 2023-08-02 DOI: 10.1002/eom2.12399

Eui Dae Jung, Chan Ul Kim, Young Wook Noh, Seong Kuk Seo, Young Im Noh, Kyoung Jin Choi, Myoung Hoon Song

{"title":"Aesthetic and efficient perovskite/Si tandem solar cells using luminescent down-shifting textured anti-reflection films","authors":"Eui Dae Jung, Chan Ul Kim, Young Wook Noh, Seong Kuk Seo, Young Im Noh, Kyoung Jin Choi, Myoung Hoon Song","doi":"10.1002/eom2.12399","DOIUrl":"10.1002/eom2.12399","url":null,"abstract":"<p>Perovskite-based tandem cells are emerging as new photovoltaic (PV) cells with a high efficiency that exceeds the efficiency limit of single-junction cells. Building-integrated PVs that require high efficiency are attractive, but aesthetics play key roles in these urban applications. One of the most challenging problems with respect to aesthetic PV cells is the efficiency loss due to color tuning. Here, we demonstrate for the first time lossless full-color tunable PV cells based on the use of textured luminescent down-shifting (LDS) films with LDS dyes with ultraviolet-selective absorption. The LDS anti-reflection (AR) films improve the perovskite/Si tandem cell efficiency by reducing the loss of parasitic UV absorption of the layers above the perovskite film due to LDS effect and the loss due to cell reflection due to the textured surface. Therefore, color tuning with LDS AR films can be used to produce highly aesthetic and efficient PV cells for urban applications.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"5 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12399","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43901659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Stay healthy under global warming: A review of wearable technology for thermoregulation 全球变暖下保持健康：可穿戴体温调节技术综述

EcoMat Pub Date : 2023-07-21 DOI: 10.1002/eom2.12396

Ronghui Wu, Ting-Hsuan Chen, Po-Chun Hsu

{"title":"Stay healthy under global warming: A review of wearable technology for thermoregulation","authors":"Ronghui Wu, Ting-Hsuan Chen, Po-Chun Hsu","doi":"10.1002/eom2.12396","DOIUrl":"10.1002/eom2.12396","url":null,"abstract":"<p>Global warming has been affecting human health, including direct mortality and morbidity from extreme heat, storms, drought, and indirect infectious diseases. It is not only “global” but extremely “personal”—it is a matter of life and death for many of us. In this perspective, we propose the use of wearable technologies for localized personal thermoregulation as an innovative method to reduce the impact on health and enable wider adaptability to extreme thermal environments. The state-of-the-art thermoregulation methods and wearable sensing technologies are summarized. In addition, the feasibility of thermoregulation technology in preventive medicine for promoting health under climate change is comprehensively discussed. Further, we provide an outlook on health-oriented closed loop that can be achieved based on parallel thermoregulation and multiple data inputs from the physiological, environmental, and psychological cues, which could promote individuals and the public to better adapt to global warming.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"5 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12396","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49581738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CoNiFe-layered double hydroxide decorated Co-N-C network as a robust bi-functional oxygen electrocatalyst for zinc-air batteries CoNiFe -层状双氢氧化物修饰Co - N - C网络作为锌-空气电池的强大双功能氧电催化剂

EcoMat Pub Date : 2023-07-21 DOI: 10.1002/eom2.12394

Yasir Arafat, Yijun Zhong, Muhammad R. Azhar, Mohammad Asif, Moses O. Tadé, Zongping Shao

{"title":"CoNiFe-layered double hydroxide decorated Co-N-C network as a robust bi-functional oxygen electrocatalyst for zinc-air batteries","authors":"Yasir Arafat, Yijun Zhong, Muhammad R. Azhar, Mohammad Asif, Moses O. Tadé, Zongping Shao","doi":"10.1002/eom2.12394","DOIUrl":"10.1002/eom2.12394","url":null,"abstract":"<p>Rechargeable zinc-air batteries (ZABs) are cost-effective energy storage devices and display high-energy density. To realize high round-trip energy efficiency, it is critical to develop durable bi-functional air electrodes, presenting high catalytic activity towards oxygen evolution/reduction reactions together. Herein, we report a nanocomposite based on ternary CoNiFe-layered double hydroxides (LDH) and cobalt coordinated and N-doped porous carbon (Co-N-C) network, obtained by the in-situ growth of LDH over the surface of ZIF-67-derived 3D porous network. Co-N-C network contributes to the oxygen reduction reaction activity, while CoNiFe-LDH imparts to the oxygen evolution reaction activity. The rich active sites and enhanced electronic and mass transport properties stemmed from their unique architecture, culminated into outstanding bi-functional catalytic activity towards oxygen evolution/reduction in alkaline media. In ZABs, it displays a high peak power density of 228 mW cm<sup>−2</sup> and a low voltage gap of 0.77 V over an ultra-long lifespan of 950 h.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"5 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12394","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45023013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ligand chemistry for surface functionalization in MXenes: A review MXenes表面功能化的配体化学研究进展

EcoMat Pub Date : 2023-07-19 DOI: 10.1002/eom2.12395

Sungmin Jung, Ujala Zafar, L. Satish Kumar Achary, Chong Min Koo

{"title":"Ligand chemistry for surface functionalization in MXenes: A review","authors":"Sungmin Jung, Ujala Zafar, L. Satish Kumar Achary, Chong Min Koo","doi":"10.1002/eom2.12395","DOIUrl":"10.1002/eom2.12395","url":null,"abstract":"<p>Surface chemistry of MXenes is of significant interest due to its potential to control their final optoelectronic and physicochemical properties, and address the oxidation and dispersion stabilities of MXenes. Surface chemistry of MXenes can be manipulated by either MXene synthesis via chemical etching or post surface functionalization method. Although numerous reviews have explored MXene synthesis methods, there has been a lack of focus on post surface functionalization. This review aims to fill this gap by summarizing recent advancements in the MXene surface functionalization chemistry, and elucidating mechanisms, properties, and future perspectives of functionalized MXenes. We discuss organic ligand molecules, such as organic salts, catechols, phosphonates, carboxylates, and silanes, which can be employed to surface-functionalize MXene through covalent or non-covalent bond interaction. This comprehensive review offers valuable insights for scientists and engineers in utilizing functionalized MXenes across diverse applications, including EMI shielding, energy storage, electronics, optoelectronics, and sensors.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"5 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12395","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45918152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

EcoMat最新文献