JACS AuPub Date : 2025-07-28DOI: 10.1021/jacsau.5c00601
Lars E. Burmeister, Florian Doettinger, Kurt J. Haseloff, Christian Kleeberg, Mohammed Boujtita, Simon Pascal, Fabrice Odobel, Stefanie Tschierlei, Yann Pellegrin* and Michael Karnahl*,
{"title":"Dye-Sensitized Solar Cells Based on Cu(I) Complexes Containing Catechol Anchor Groups That Operate with Aqueous Electrolytes","authors":"Lars E. Burmeister, Florian Doettinger, Kurt J. Haseloff, Christian Kleeberg, Mohammed Boujtita, Simon Pascal, Fabrice Odobel, Stefanie Tschierlei, Yann Pellegrin* and Michael Karnahl*, ","doi":"10.1021/jacsau.5c00601","DOIUrl":"https://doi.org/10.1021/jacsau.5c00601","url":null,"abstract":"<p >We report the design and synthesis of two novel phenanthroline-based ligands, a catechol-functionalized derivative (<b>L1</b>: 4,7-(4-catechol)-2,9-dimethyl-1,10-phenanthroline) ligand and its methoxy analogue (<b>L1′</b>). These ligands were used to prepare four Cu(I) complexes: two homoleptic bis-diimine Cu(I) complexes (<b>C1</b> and <b>C1′</b>) and two xantphos-based heteroleptic diimine-diphosphine derivatives (<b>C2</b> and <b>C2′</b>). Their photophysical and electrochemical properties were characterized by steady-state and time-resolved spectroscopy, cyclic voltammetry, and density functional theory (DFT) calculations. Implementation of <b>L1</b>, <b>C1</b>, and <b>C2</b> in n-type DSSCs gave a photoconversion efficiency (PCE) of 1.88% for the heteroleptic Cu(I) complex <b>C2</b>, representing a 35-fold increase compared to previously reported diimine-diphosphine Cu(I)-based DSSCs. Incident photon-to-current efficiency (IPCE) measurements and electrochemical impedance spectroscopy confirmed efficient photoinduced charge injection and interfacial electron transfer. Moreover, the strong binding affinity of the catechol anchors enabled the fabrication of DSSCs with an aqueous electrolyte, which showed stable performance for at least 10 days. The working principle of these cells is described as a dual chromophore system, where the catechol-TiO<sub>2</sub> interaction, operating through a type-II sensitization mechanism, acts as the primary chromophore, while the Cu(I) complex serves as an antenna chromophore.</p>","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 8","pages":"3960–3973"},"PeriodicalIF":8.7,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/jacsau.5c00601","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144892595","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}
Sabrina Mandl, Barbara Maiwald, Elena Adlmanninger, Ramona Birke, Sandra Schlee, Adam Pruška, Philipp Bittner, Renato Zenobi, Tolga Soykan, Gerti Beliu, Johannes Broichhagen* and Andrea Hupfeld*,
{"title":"","authors":"Sabrina Mandl, Barbara Maiwald, Elena Adlmanninger, Ramona Birke, Sandra Schlee, Adam Pruška, Philipp Bittner, Renato Zenobi, Tolga Soykan, Gerti Beliu, Johannes Broichhagen* and Andrea Hupfeld*, ","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 7","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":8.5,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/jacsau.5c00603","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144712596","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}
Shannon E. Cooney, Thompson V. Marinho, S. Genevieve Duggan, Dominic Shiels, William W. Brennessel, Pere Miro* and Ellen M. Matson*,
{"title":"","authors":"Shannon E. Cooney, Thompson V. Marinho, S. Genevieve Duggan, Dominic Shiels, William W. Brennessel, Pere Miro* and Ellen M. Matson*, ","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 7","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":8.5,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/jacsau.5c00482","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144712613","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}
Alina Emelianova , Pablo L. Garcia, Daniel Tan and Jerelle A. Joseph *,
{"title":"","authors":"Alina Emelianova , Pablo L. Garcia, Daniel Tan and Jerelle A. Joseph *, ","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":94060,"journal":{"name":"JACS Au","volume":"5 7","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":8.5,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/jacsau.5c00291","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144712631","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}