{"id":684,"date":"2011-03-14T14:04:32","date_gmt":"2011-03-14T14:04:32","guid":{"rendered":"http:\/\/junq.info\/?p=684"},"modified":"2011-03-14T14:05:43","modified_gmt":"2011-03-14T14:05:43","slug":"what-is-the-ultimate-efficiency-of-photovoltaic-cells","status":"publish","type":"post","link":"http:\/\/junq.info\/?p=684","title":{"rendered":"What is the ultimate efficiency of photovoltaic cells?"},"content":{"rendered":"<p><em>Question of the Week, 14.3.2011<\/em><\/p>\n<p>In 1961 Shockley and Queisser proposed the detailed balance limit of a classical single p-n junction solar cell. The ultimate efficiency has been evaluated to be 44 %. However, several factors reduce this figure [1]. Nowadays solar cell efficiencies vary from 6 % for amorphous silicon-based solar cells to 42 % for concentrator multijunction research-cell and is only about 20 % for the commercially available modules [2]. Attempts to enhance the efficiency of solar cells are still being made. Can researchers break through the barrier?<\/p>\n<p>[1] William Shockley and Hans J. Queisser, &#8220;Detailed Balance Limit of Efficiency of p-n Junction Solar Cells&#8221;, Journal of Applied Physics, Volume 32 (March 1961), pp. 510-519; DOI:10.1063\/1.1736034<\/p>\n<p>[2] &#8220;2008 Solar Technologies Market Report: January 2010.&#8221; (2010). 131 pp. NREL Report TP-6A2-46025; DOE\/GO-102010-2867. <a href=\"http:\/\/www.nrel.gov\/analysis\/pdfs\/46025.pdf\">http:\/\/www.nrel.gov\/analysis\/pdfs\/46025.pdf<\/a> <\/p>\n<p>Yuriy Khalavka<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In 1961 Shockley and Queisser proposed the detailed balance limit of a classical single p-n junction solar cell. The ultimate efficiency has been evaluated to be 44 %. However, several factors reduce this figure&#8230; (Question of the Week, 14.3.2011)<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[6],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"http:\/\/junq.info\/index.php?rest_route=\/wp\/v2\/posts\/684"}],"collection":[{"href":"http:\/\/junq.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/junq.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/junq.info\/index.php?rest_route=\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"http:\/\/junq.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=684"}],"version-history":[{"count":2,"href":"http:\/\/junq.info\/index.php?rest_route=\/wp\/v2\/posts\/684\/revisions"}],"predecessor-version":[{"id":686,"href":"http:\/\/junq.info\/index.php?rest_route=\/wp\/v2\/posts\/684\/revisions\/686"}],"wp:attachment":[{"href":"http:\/\/junq.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=684"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/junq.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=684"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/junq.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=684"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}