1.0Cognition Conferenceshttps://cognitionconferences.com/opticsCognition Conferenceshttps://cognitionconferences.com/optics/author/cogn-3012/rich600338<blockquote class="wp-embedded-content" data-secret="RIqxXYwBfO"><a href="https://cognitionconferences.com/optics/speaker/ranjeet-kumar-brajpuriya/">Ranjeet Kumar Brajpuriya</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://cognitionconferences.com/optics/speaker/ranjeet-kumar-brajpuriya/embed/#?secret=RIqxXYwBfO" width="600" height="338" title="“Ranjeet Kumar Brajpuriya” — Cognition Conferences" data-secret="RIqxXYwBfO" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://cognitionconferences.com/optics/wp-includes/js/wp-embed.min.js /* ]]> */ </script> https://cognitionconferences.com/optics/wp-content/uploads/2026/01/Ranjeet-Kumar-Brajpuriya.png500600Abstract Clean graphene offers strong potential for a wide range of energy applications, including storage, conversion, harvesting, and catalysis. Ongoing efforts to preserve its purity are essential for advancing sustainable and efficient technologies. Although chemical vapor deposition can produce large, high-quality graphene sheets, scaling the method for industrial use remains challenging. Issues with film uniformity […]