{"id":3257,"date":"2019-12-10T15:32:04","date_gmt":"2019-12-10T15:32:04","guid":{"rendered":"https:\/\/www.editage.com\/insights\/new-low-cost-technology-ups-the-game-of-energy-harvesting-nanogenerators\/"},"modified":"2025-02-21T07:36:44","modified_gmt":"2025-02-21T07:36:44","slug":"new-low-cost-technology-ups-the-game-of-energy-harvesting-nanogenerators","status":"publish","type":"post","link":"https:\/\/www.editage.com\/insights\/new-low-cost-technology-ups-the-game-of-energy-harvesting-nanogenerators","title":{"rendered":"New low-cost technology ups the game of energy-harvesting nanogenerators"},"content":{"rendered":"<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">Have you ever wondered why pieces of Styrofoam get stuck to a cat\u2019s fur? Or why some clothes, when rubbed together, sometimes cling to each other? This happens because some materials, when in contact, develop an electric charge, known as static electricity. Always on the lookout for newer energy sources, scientists often wondered whether this \u201ccontact electricity\u201d could be converted to useful electrical energy. This was made possible with the invention of the triboelectric nanogenerator (TENG) in 2012, a device that could generate energy via mechanical contact between surfaces. Because this device primarily works on the concept of surface contact, it is a sustainable, green source of power. But, TENG comes with its cons. The current technology used in TENGs is not very efficient, as it sometimes leads to possible leakage of electricity in air (in other words, \u201celectric breakdown\u201d), which ultimately reduces the power output. Another pragmatic problem is the low voltage supplied by the TENG when operating devices with low resistance, such as LEDs.<\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">Regardless, having realized the potential of TENGs, scientists globally have been working on upgrading its technology. Now, in a breakthrough study published in <\/span><span class=\"MsoHyperlink\" style=\"color:blue\"><span style=\"text-decoration:underline\"><i><a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1002\/aenm.201901731\" style=\"color:blue; text-decoration:underline\">Advanced Energy Materials<\/a><\/i><\/span><\/span><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">, a group of scientists from Korea, led by Dr Sangmin Lee from Chung-Ang University, found a new way to tackle the issues faced by conventional TENGs. They used a technique called \u201cion enhanced field emission\u201d to devise a new type of TENG, which they named as IEFE-TENG. Interestingly, the device managed to generate a larger electrical output than conventional TENGs. Talking about the scope of this exciting finding, Dr Lee says, \u201cMany studies have tried to generate electricity through static electricity, but conventional triboelectric nanogenerators pose several challenges, which have remained the same since they were first introduced. Our lab believed that through structural improvements, we could further improve the electrical performance and applicability of triboelectric generators.\u201d<\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">In their device, the scientists used two extra layers\u2014an \u201cIEFE-inducing layer\u201d which acts as a \u201ccharge accumulation layer\u201d\u2014in the core of a regular nanogenerator. The trick was that this layer\u2014placed in a way such that it forms contact with the atmosphere\u2014provided an additional point of contact with ions in the air. This resulted in a phenomenon called \u201cfield emission,\u201d in which electrons that are transferred through the IEFE-inducing layer generate a much higher power output than usual. Specifically, the team observed a whopping 635% increase in the root-mean-square power (a measure of the power generated). Interestingly, this improvement was a result of adding just one extra layer to the device\u2014a relatively simple and low-cost method. Excited about this new development, Prof Lee commented, \u201cThe IEFE-TENG developed in this study can provide a new standard for TENG fabrication and potential solution for portable power sources. Our device showed us a huge improvement in the electrical output of triboelectric generators by adding a simple layer.\u201d<\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">The applications of TENGS are many, for example as power sources in batteries, portable gaming devices, and temperature\/humidity sensors, and upgrading this device could certainly prove useful. Prof Lee elaborates on the broader scope of this study, \u201cThe energy demand globally is skyrocketing. Through our simple yet efficient device, we hope to provide fulfill the growing demand of energy even in countries that cannot afford high-cost technology.\u201d<\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"text-justify:inter-ideograph\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">Energy is available in many forms, and making the most of it can prove beneficial, especially with a dearth of sustainable energy sources. Green energy is the need of the hour, and with inventions of this kind, we could potentially be a step closer to creating a better, more sustainable future! \u00a0<\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align:justify; margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:&quot;Times New Roman&quot;,serif\"><b><span style=\"font-family:&quot;Calibri&quot;,sans-serif\">Reference<\/span><\/b><\/span><\/span><\/p>\n<p style=\"margin-bottom:.0001pt; margin:0in 0in 8pt\"><span style=\"font-size:11pt\"><span style=\"line-height:107%\"><span style=\"font-family:Calibri,sans-serif\">Title of original paper:\u00a0\u00a0\u00a0 Ion-Enhanced Field Emission Triboelectric Nanogenerator<\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom:.0001pt; margin:0in 0in 8pt\"><span style=\"font-size:11pt\"><span style=\"line-height:107%\"><span style=\"font-family:Calibri,sans-serif\">DOI: 10.1002\/aenm.201901731<\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom:.0001pt; margin:0in 0in 8pt\"><span style=\"font-size:11pt\"><span style=\"line-height:107%\"><span style=\"font-family:Calibri,sans-serif\">Name of author: Dr Sangmin Lee <\/span><\/span><\/span><\/p>\n<p style=\"margin:0in 0in 0.0001pt\"><span lang=\"EN-US\" style=\"font-size:11.0pt\" xml:lang=\"EN-US\"><span style=\"line-height:107%\"><span style=\"font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;\">Affiliation: School of Mechanical Engineering, Chung-Ang University<\/span><\/span><\/span><\/p>\n<table class=\"Table\" style=\"border-collapse:collapse; border:none\">\n<tbody>\n<tr height=\"0\">\n<td style=\"border:none\" width=\"174\">\u00a0<\/td>\n<td style=\"border:none\" width=\"254\">\u00a0<\/td>\n<td style=\"border:none\" width=\"174\">\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:Calibri,sans-serif\"><span style=\"color:black\"><b>About Chung-Ang University<\/b><\/span><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:Calibri,sans-serif\"><span style=\"color:black\"><a href=\"https:\/\/neweng.cau.ac.kr\/index.do\">Chung-Ang University<\/a> is a private comprehensive research university located in Seoul, Korea. It was started as a kindergarten in 1918 and attained university status in 1953. It is fully accredited by the Ministry of Education of Korea. Chung-Ang University conducts research activities under the slogan of \u201cJustice and Truth.\u201d Its new vision for completing 100 years is \u201cThe Global Creative Leader.\u201d Chung-Ang University offers undergraduate, postgraduate, and doctoral programs, which encompass a law school, management program, and medical school; it has 16 undergraduate and graduate schools each. Chung-Ang University\u2019s culture and arts programs are considered the best in Korea.\u00a0 \u00a0<\/span><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:Calibri,sans-serif\"><span style=\"color:black\">\u00a0<\/span><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:Calibri,sans-serif\"><span style=\"color:black\"><b>About Dr Sangmin Lee from Chung-Ang University<\/b><\/span><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><span style=\"font-size:12pt\"><span style=\"font-family:Calibri,sans-serif\"><span style=\"color:black\"><span style=\"background:white\"><span style=\"color:#111111\">Dr Sangmin Lee is an Assistant Professor at the School of Mechanical Engineering, Chung-Ang University. He is also the corresponding author of this study. A respected and senior researcher, he has more than 80 publications to his credit. His main research interests include piezoelectric and triboelectric nanogenerators, super-flexible piezoelectric nanogenerators, and hybrid cells.<\/span><\/span><\/span><\/span><\/span><\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\">\u00a0<\/p>\n<p class=\"Default\" style=\"margin:0in 0in 0.0001pt\"><strong>Media contact<\/strong><\/p>\n<p style=\"margin:0in 0in 8pt\"><span style=\"font-size:11pt\"><span style=\"line-height:107%\"><span style=\"font-family:Calibri,sans-serif\">Jin hwan\u00a0Kim<\/span><\/span><\/span><\/p>\n<p style=\"margin:0in 0in 8pt\"><span style=\"font-size:11pt\"><span style=\"line-height:107%\"><span style=\"font-family:Calibri,sans-serif\">Email: <span class=\"MsoHyperlink\" style=\"color:blue\"><span style=\"text-decoration:underline\"><a href=\"mailto:jinhwan303@cau.ac.kr\" style=\"color:blue; text-decoration:underline\">jinhwan303@cau.ac.kr<\/a><\/span><\/span><\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Have you ever wondered why pieces of Styrofoam get stuck to a cat\u2019s fur? Or why some clothes, when rubbed together, sometimes cling to each other? This happens because some materials, when in contact, develop an electric charge, known as static electricity. Always on the lookout for newer energy sources, scientists often wondered whether this [&hellip;]<\/p>\n","protected":false},"author":1152,"featured_media":33313,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[2435],"tags":[2482],"new_categories":[],"new_tags":[],"series":[],"class_list":["post-3257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trending-research","tag-science-update"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>New low-cost technology ups the game of energy-harvesting nanogenerators | Editage Insights<\/title>\n<meta name=\"description\" content=\"A team of researchers at\u00a0Chung-Ang University, Korea,\u00a0has developed a technology for converting static electricity into electrical 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