{"id":1472,"date":"2023-08-01T12:10:19","date_gmt":"2023-08-01T17:10:19","guid":{"rendered":"https:\/\/solarischem.com\/procurement\/?post_type=product&#038;p=1472"},"modified":"2026-08-21T05:28:57","modified_gmt":"2026-08-21T10:28:57","slug":"bis-pc72bm-c70-manufacturer","status":"publish","type":"product","link":"https:\/\/solarischem.com\/procurement\/bis-pc72bm-c70-manufacturer\/","title":{"rendered":"Bis-PC72BM"},"content":{"rendered":"<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Organization\",\n      \"@id\": \"https:\/\/solarischem.com\/#organization\",\n      \"name\": \"Solaris Chem Inc.\",\n      \"url\": \"https:\/\/solarischem.com\",\n      \"logo\": \"https:\/\/solarischem.com\/procurement\/wp-content\/uploads\/2026\/02\/logo-solarischem-450-e1770883197292.jpg\"\n    },\n    {\n      \"@type\": \"Product\",\n      \"@id\": \"https:\/\/solarischem.com\/procurement\/product\/bis-pc72bm\/#product\",\n      \"name\": \"Bis-PC72BM (SOL5072) - High-LUMO Fullerene C70 Bis-Adduct\",\n      \"image\": [\n        \"https:\/\/solarischem.com\/procurement\/wp-content\/uploads\/2023\/05\/sol5072.jpg\"\n      ],\n      \"description\": \"High-purity Bis-PC72BM (SOL5072, CAS: 1048679-01-1) C70 fullerene bis-adduct engineered for an elevated LUMO energy level, higher open-circuit voltage (Voc), and broader optical absorption in organic photovoltaics.\",\n      \"sku\": \"SOL5072\",\n      \"mpn\": \"1048679-01-1\",\n      \"category\": \"Organic Photovoltaics > Electron Acceptors\",\n      \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"Solaris Chem\"\n      },\n      \"additionalProperty\": [\n        {\n          \"@type\": \"PropertyValue\",\n          \"name\": \"CAS Number\",\n          \"value\": \"1048679-01-1\"\n        },\n        {\n          \"@type\": \"PropertyValue\",\n          \"name\": \"Molecular Weight\",\n          \"value\": \"1031 g\/mol\"\n        },\n        {\n          \"@type\": \"PropertyValue\",\n          \"name\": \"Isomerization\",\n          \"value\": \">99.9% [6,6] isomerized\"\n        },\n        {\n          \"@type\": \"PropertyValue\",\n          \"name\": \"Solubility Profile\",\n          \"value\": \"Toluene, Chlorobenzene, 1,2-o-Dichlorobenzene\"\n        }\n      ],\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"price\": \"150.00\",\n        \"priceCurrency\": \"USD\",\n        \"priceValidUntil\": \"2027-12-31\",\n        \"itemCondition\": \"https:\/\/schema.org\/NewCondition\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/solarischem.com\/procurement\/product\/bis-pc72bm\/\",\n        \"seller\": {\n          \"@type\": \"Organization\",\n          \"name\": \"Solaris Chem Inc.\"\n        }\n      }\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"@id\": \"https:\/\/solarischem.com\/procurement\/product\/bis-pc72bm\/#faq\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What is the primary advantage of Bis-PC72BM (SOL5072) over standard PC71BM?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Bis-PC72BM is a bis-adduct C70 fullerene derivative featuring an elevated LUMO energy level. Pushing the LUMO level higher increases the energetic offset with donor polymers, directly boosting the open-circuit voltage (Voc) and overall power conversion efficiency (PCE) in solar cell devices.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Why is C70-based Bis-PC72BM preferred over C60 bis-adducts?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Due to the asymmetrical, rugby-ball shape of the C70 cage, Bis-PC72BM exhibits broader optical absorption across the visible spectrum (400 nm to 700 nm), increasing photon harvesting and short-circuit current (Jsc).\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Which solvents are best suited for processing Bis-PC72BM?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Bis-PC72BM offers high solubility in standard organic solvents including toluene, chlorobenzene, and 1,2-o-dichlorobenzene, making it ideal for spin-coating, slot-die, and blade-coating ink formulations.\"\n          }\n        }\n      ]\n    }\n  ]\n}\n<\/script><\/p>\n<div class=\"solarischem-bis-pc72bm-container\" style=\"font-family: Arial, sans-serif; line-height: 1.6; color: #333;\">\n<p>  <!-- AI DIRECT ANSWER SNIPPET --><\/p>\n<section class=\"ai-snippet\" style=\"background-color: #f8f9fa; border-left: 4px solid #07842e; padding: 15px 20px; margin-bottom: 25px;\">\n<h2 style=\"margin-top: 0; color: #07842e; font-size: 1.4rem;\">Bis-PC72BM (SOL5072) \u2013 High-LUMO C70 Fullerene Bis-Adduct for Enhanced Voc<\/h2>\n<p style=\"margin-bottom: 0;\">\n      <strong>Bis-PC72BM (SOL5072, CAS: 1048679-01-1)<\/strong>, or Bis[70]PCBM, is a high-performance C70 fullerene bis-adduct electron acceptor engineered for organic photovoltaics (OPV). Supplied by Solaris Chem with <strong>&gt;99.9% [6,6] isomer purity<\/strong>, Bis-PC72BM elevates the LUMO energy level to significantly boost open-circuit voltage (Voc) while leveraging the broader visible light absorption of the C70 cage to maximize power conversion efficiency (PCE).\n    <\/p>\n<\/section>\n<p>  <!-- THE BIS-ADDUCT ADVANTAGE --><\/p>\n<section class=\"bis-pc72bm-advantages\" style=\"margin-bottom: 30px;\">\n<h3>The &#8220;Bis-Adduct&#8221; Advantage: Elevating Open-Circuit Voltage (Voc)<\/h3>\n<ul style=\"padding-left: 20px;\">\n<li><strong>Higher LUMO Energy Level:<\/strong> Adding a second solubilizing group to the C70 cage raises the LUMO energy level, broadening the energetic gap relative to donor polymer HOMO levels.<\/li>\n<li><strong>Direct Voltage Boost (Voc):<\/strong> Effectively overcomes the primary voltage limitation of standard mono-adduct acceptors like PC71BM, resulting in substantial PCE gains.<\/li>\n<li><strong>Broader Optical Absorption (400 \u2013 700 nm):<\/strong> The asymmetrical C70 cage enables stronger optical transitions in the visible spectrum, generating higher short-circuit current (Jsc) compared to C60 bis-adducts.<\/li>\n<li><strong>Superior Processing Solubility:<\/strong> Highly soluble in toluene, chlorobenzene, and 1,2-dichlorobenzene for stable donor\/acceptor ink formulations.<\/li>\n<\/ul>\n<\/section>\n<p>  <!-- PURITY GRADES SELECTION --><\/p>\n<section class=\"bis-pc72bm-grades\" style=\"background-color: #ffffff; border: 1px solid #e0e0e0; padding: 20px; margin-bottom: 30px; border-radius: 5px;\">\n<h3 style=\"margin-top: 0; color: #07842e;\">Available High-Purity Grade<\/h3>\n<ul style=\"padding-left: 20px; margin-bottom: 0;\">\n<li><strong>Grade &gt; 98.00% (SOL5072A):<\/strong> High-purity C70 bisadduct grade engineered for high-efficiency bulk heterojunction solar cell optimization and industrial scaling.<\/li>\n<\/ul>\n<\/section>\n<p>  <!-- DONOR MATERIALS COMPATIBILITY --><\/p>\n<section class=\"bis-pc72bm-donors\" style=\"margin-bottom: 30px;\">\n<h3>Synergy with High-Performance Donor Materials<\/h3>\n<p>Bis-PC72BM (SOL5072) creates high-efficiency active layers when paired with benchmark donor polymers:<\/p>\n<ul style=\"padding-left: 20px;\">\n<li><strong>P3HT (SOL4106):<\/strong> <a href=\"https:\/\/solarischem.com\/procurement\/product\/p3ht\/\" target=\"_blank\" rel=\"noopener\" style=\"color: #07842e; font-weight: bold;\">P3HT polymer<\/a> for fabricating high-voltage variants of the classic reference solar cell.<\/li>\n<li><strong>PCDTBT (SOL4280):<\/strong> <a href=\"https:\/\/solarischem.com\/procurement\/product\/pcdtbt\/\" target=\"_blank\" rel=\"noopener\" style=\"color: #07842e; font-weight: bold;\">PCDTBT polymer<\/a> optimized for improved thermal stability and high-voltage charge transport.<\/li>\n<li><strong>PTB7 (SOL4700):<\/strong> Premium donor polymer for state-of-the-art flexible organic photovoltaic research.<\/li>\n<\/ul>\n<\/section>\n<p>  <!-- TECHNICAL DATA SHEETS & DOWNLOADS --><\/p>\n<section class=\"bis-pc72bm-downloads\" style=\"background-color: #eef7ee; border: 1px solid #c8e6c9; padding: 15px 20px; border-radius: 5px; margin-bottom: 30px;\">\n<h3 style=\"margin-top: 0; color: #07842e;\">Technical Documentation &amp; SDS<\/h3>\n<p style=\"margin-bottom: 0;\">\n      <strong>Safety Data Sheet:<\/strong><br \/>\n      <a href=\"https:\/\/solarischem.com\/store\/wp-content\/uploads\/2021\/05\/SDS-SOL5072_may-2021.pdf\" target=\"_blank\" rel=\"noopener\" style=\"color: #07842e; font-weight: bold;\">Download SDS-SOL5072 (PDF)<\/a>\n    <\/p>\n<\/section>\n<p>  <!-- TECHNICAL SPECIFICATIONS TABLE --><\/p>\n<section class=\"bis-pc72bm-specs-table\" style=\"margin-bottom: 30px;\">\n<h3>Bis-PC72BM (SOL5072) Technical Specifications<\/h3>\n<table style=\"width: 100%; border-collapse: collapse; margin-top: 10px; text-align: left;\">\n<thead>\n<tr style=\"background-color: #07842e; color: #ffffff;\">\n<th style=\"padding: 10px; border: 1px solid #dddddd;\">Property<\/th>\n<th style=\"padding: 10px; border: 1px solid #dddddd;\">Specification \/ Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #dddddd;\"><strong>Acronyms<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #dddddd;\">Bis PC72BM, Bis[70]PCBM, Bis-PCBM, PC70BM bisadduct<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td style=\"padding: 10px; border: 1px solid #dddddd;\"><strong>Chemical Name<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #dddddd;\">Bis(1-[3-(methoxycarbonyl) propyl]-1-phenyl)-[6.6]C72 ; [6,6] diphenyl C72 bis(butyric acid methyl ester)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #dddddd;\"><strong>CAS Number<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #dddddd;\">1048679-01-1<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td style=\"padding: 10px; border: 1px solid #dddddd;\"><strong>Appearance &amp; Texture<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #dddddd;\">Brown to black crystalline powder<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #dddddd;\"><strong>Molecular Weight<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #dddddd;\">1031 g\/mol<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td style=\"padding: 10px; border: 1px solid #dddddd;\"><strong>Isomer Purity<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #dddddd;\">&gt; 99.9% [6,6] isomerized<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #dddddd;\"><strong>Solubility Profile<\/strong><\/td>\n<td style=\"padding: 10px; border: 1px solid #dddddd;\">Toluene, Chlorobenzene, 1,2-o-Dichlorobenzene<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n<p>  <!-- FAQ SECTION --><\/p>\n<section class=\"bis-pc72bm-faq\" style=\"margin-bottom: 30px;\">\n<h3>Frequently Asked Questions (FAQ) \u2013 Bis-PC72BM (SOL5072)<\/h3>\n<div style=\"margin-bottom: 15px;\">\n<h4 style=\"margin-bottom: 5px; color: #07842e;\">What is the primary advantage of Bis-PC72BM (SOL5072) over standard PC71BM?<\/h4>\n<p style=\"margin-top: 0;\">\n        Bis-PC72BM is a bis-adduct C70 fullerene derivative featuring an elevated LUMO energy level. Pushing the LUMO level higher increases the energetic offset with donor polymers, directly boosting the open-circuit voltage (Voc) and overall power conversion efficiency (PCE) in solar cell devices.\n      <\/p>\n<\/p><\/div>\n<div style=\"margin-bottom: 15px;\">\n<h4 style=\"margin-bottom: 5px; color: #07842e;\">Why is C70-based Bis-PC72BM preferred over C60 bis-adducts?<\/h4>\n<p style=\"margin-top: 0;\">\n        Due to the asymmetrical, rugby-ball shape of the C70 cage, Bis-PC72BM exhibits broader optical absorption across the visible spectrum (400 nm to 700 nm), increasing photon harvesting and short-circuit current (Jsc).\n      <\/p>\n<\/p><\/div>\n<div style=\"margin-bottom: 15px;\">\n<h4 style=\"margin-bottom: 5px; color: #07842e;\">Which solvents are best suited for processing Bis-PC72BM?<\/h4>\n<p style=\"margin-top: 0;\">\n        Bis-PC72BM offers high solubility in standard organic solvents including toluene, chlorobenzene, and 1,2-o-dichlorobenzene, making it ideal for spin-coating, slot-die, and blade-coating ink formulations.\n      <\/p>\n<\/p><\/div>\n<\/section>\n<p>  <!-- PRICING & SAFETY NOTICE --><\/p>\n<section class=\"bis-pc72bm-notice\" style=\"font-size: 0.85rem; color: #666; border-top: 1px solid #e0e0e0; padding-top: 15px;\">\n<p style=\"margin-bottom: 5px;\">\n      <a href=\"https:\/\/solarischem.com\/contact\" style=\"color: #07842e; font-weight: bold;\">Request pricing for larger quantity<\/a>\n    <\/p>\n<p style=\"margin-bottom: 5px;\"><em>* Price subject to change without prior notice.<\/em><\/p>\n<p style=\"margin-bottom: 0;\">\n      <em><strong>Notice:<\/strong> Products for Research and Development. Laboratory use only by qualified personnel. The user should read the available SDS and be aware of any precautions to take for the safe manipulation of these materials. Solaris Chem shall not be held responsible for any damage resulting from handling or use.<\/em>\n    <\/p>\n<\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<div class=\"post-content woocommerce-product-details__short-description\">\n<h5><strong>SOL5072<\/strong><\/h5>\n<p>Bis-PC72BM is a derivative of Fullerene C70. Used as an electron acceptor from Donor materials such as <a href=\"https:\/\/solarischem.com\/procurement\/p3ht\/\" target=\"_blank\" rel=\"noopener\">P3HT<\/a> (SOL4106), PCDTBT (SOL4280), or PTB7 (SOL4700) to make high Open Circuit Voltage (Voc), high Power Conversion Efficiency (PCE) bulk heterojunction solar cells, &gt;99.9% [6,6] isomerized.<\/p>\n<\/div>\n","protected":false},"featured_media":1553,"template":"","meta":{"_eb_attr":""},"product_brand":[],"product_cat":[17,18],"product_tag":[19,20],"class_list":["post-1472","product","type-product","status-publish","has-post-thumbnail","product_cat-c60-and-derivatives","product_cat-fullerenes","product_tag-featured-fullerenes","product_tag-featured-perovskites","first","instock","taxable","shipping-taxable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/solarischem.com\/procurement\/wp-json\/wp\/v2\/product\/1472","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/solarischem.com\/procurement\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/solarischem.com\/procurement\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/solarischem.com\/procurement\/wp-json\/wp\/v2\/media\/1553"}],"wp:attachment":[{"href":"https:\/\/solarischem.com\/procurement\/wp-json\/wp\/v2\/media?parent=1472"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/solarischem.com\/procurement\/wp-json\/wp\/v2\/product_brand?post=1472"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/solarischem.com\/procurement\/wp-json\/wp\/v2\/product_cat?post=1472"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/solarischem.com\/procurement\/wp-json\/wp\/v2\/product_tag?post=1472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}