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Yang Y, Volpato GA, Rossin E, Peruffo N, Tumbarello F, Nicoletti C, Bonetto R, Paoloni L, Umari P, Colusso E, Dell'Amico L, Berardi S, Collini E, Caramori S, Agnoli S, Sartorel A. Photoelectrochemical C-H Activation Through a Quinacridone Dye Enabling Proton-Coupled Electron Transfer. CHEMSUSCHEM 2023; 16:e202201980. [PMID: 36507568 DOI: 10.1002/cssc.202201980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Dye-sensitized photoanodes for C-H activation in organic substrates are assembled by vacuum sublimation of a commercially available quinacridone (QNC) dye in the form of nanosized rods onto fluorine-doped tin oxide (FTO), TiO2 , and SnO2 slides. The photoanodes display extended absorption in the visible range (450-600 nm) and ultrafast photoinduced electron injection (<1 ps, as revealed by transient absorption spectroscopy) of the QNC dye into the semiconductor. The proton-coupled electron-transfer reactivity of QNC is exploited for generating a nitrogen-based radical as its oxidized form, which is competent in C-H bond activation. The key reactivity parameter is the bond-dissociation free energy (BDFE) associated with the N⋅/N-H couple in QNC of 80.5±2.3 kcal mol-1 , which enables hydrogen atom abstraction from allylic or benzylic C-H moieties. A photoelectrochemical response is indeed observed for organic substrates characterized by C-H bonds with BDFE below the 80.5 kcal mol-1 threshold, such as γ-terpinene, xanthene, or dihydroanthracene. This work provides a rational, mechanistically oriented route to the design of dye-sensitized photoelectrodes for selective organic transformations.
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Affiliation(s)
- Yunshuo Yang
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Giulia Alice Volpato
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Elena Rossin
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Nicola Peruffo
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Francesco Tumbarello
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Catia Nicoletti
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Ruggero Bonetto
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Lorenzo Paoloni
- Department of Physics and Astronomy, University of Padova, via F. Marzolo 8, 35131, Padova, Italy
| | - Paolo Umari
- Department of Physics and Astronomy, University of Padova, via F. Marzolo 8, 35131, Padova, Italy
| | - Elena Colusso
- Department of Industrial Engineering and INSTM, University of Padova, F. Marzolo 9, 35131, Padova, Italy
| | - Luca Dell'Amico
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Serena Berardi
- Department of Chemical and Pharmaceutical Sciences, Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SolarChem), Sez. di Ferrara, University of Ferrara, Via L. Borsari 46, 44121, Ferrara, Italy
| | - Elisabetta Collini
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Stefano Caramori
- Department of Chemical and Pharmaceutical Sciences, Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SolarChem), Sez. di Ferrara, University of Ferrara, Via L. Borsari 46, 44121, Ferrara, Italy
| | - Stefano Agnoli
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Andrea Sartorel
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
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He Q, Worku M, Liu H, Lochner E, Robb AJ, Lteif S, Vellore Winfred JSR, Hanson K, Schlenoff JB, Kim BJ, Ma B. Highly Efficient and Stable Perovskite Solar Cells Enabled by Low-Cost Industrial Organic Pigment Coating. Angew Chem Int Ed Engl 2021; 60:2485-2492. [PMID: 33079422 DOI: 10.1002/anie.202012095] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/18/2020] [Indexed: 11/05/2022]
Abstract
Surface passivation of perovskite solar cells (PSCs) using a low-cost industrial organic pigment quinacridone (QA) is presented. The procedure involves solution processing a soluble derivative of QA, N,N-bis(tert-butyloxycarbonyl)-quinacridone (TBOC-QA), followed by thermal annealing to convert TBOC-QA into insoluble QA. With halide perovskite thin films coated by QA, PSCs based on methylammonium lead iodide (MAPbI3 ) showed significantly improved performance with remarkable stability. A PCE of 21.1 % was achieved, which is much higher than 18.9 % recorded for the unmodified devices. The QA coating with exceptional insolubility and hydrophobicity also led to greatly enhanced contact angle from 35.6° for the pristine MAPbI3 thin films to 77.2° for QA coated MAPbI3 thin films. The stability of QA passivated MAPbI3 perovskite thin films and PSCs were significantly enhanced, retaining about 90 % of the initial efficiencies after more than 1000 hours storage under ambient conditions.
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Affiliation(s)
- Qingquan He
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL, 32306, USA
| | - Michael Worku
- Materials Science and Engineering Program, Florida State University, Tallahassee, FL, 32306, USA
| | - He Liu
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL, 32306, USA
| | - Eric Lochner
- Department of Physics, Florida State University, Tallahassee, FL, 32306, USA
| | - Alex J Robb
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL, 32306, USA
| | - Sandrine Lteif
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL, 32306, USA
| | | | - Kenneth Hanson
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL, 32306, USA
| | - Joseph B Schlenoff
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL, 32306, USA
| | - Bumjoon J Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Biwu Ma
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL, 32306, USA.,Materials Science and Engineering Program, Florida State University, Tallahassee, FL, 32306, USA
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He Q, Worku M, Liu H, Lochner E, Robb AJ, Lteif S, Vellore Winfred JSR, Hanson K, Schlenoff JB, Kim BJ, Ma B. Highly Efficient and Stable Perovskite Solar Cells Enabled by Low‐Cost Industrial Organic Pigment Coating. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012095] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Qingquan He
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
| | - Michael Worku
- Materials Science and Engineering Program Florida State University Tallahassee FL 32306 USA
| | - He Liu
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
| | - Eric Lochner
- Department of Physics Florida State University Tallahassee FL 32306 USA
| | - Alex J. Robb
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
| | - Sandrine Lteif
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
| | | | - Kenneth Hanson
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
| | - Joseph B. Schlenoff
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
| | - Bumjoon J. Kim
- Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology Daejeon 34141 Republic of Korea
| | - Biwu Ma
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
- Materials Science and Engineering Program Florida State University Tallahassee FL 32306 USA
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