Modifying perovskite solar cells with l(+)-cysteine at the interface between mesoporous TiO2 and perovskite
Perovskite solar cells (PSCs) have attracted extensive attention and their which power conversion efficiency (PCE) has rapidly increased from 3.8% to 25.2% in recent years. Interfacial modification is regarded as a highly effective strategy to address the humidity instability and improve the perform...
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| Veröffentlicht in: | Sustainable energy & fuels 2020, Vol.4 (2), p.878-883 |
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| creator | Wu, Pengfei Ma, Xiaotong Zhao, Baohua Liu, Chengben Chen, Yanli Yang, Guangwu Li, Xiyou |
| description | Perovskite solar cells (PSCs) have attracted extensive attention and their which power conversion efficiency (PCE) has rapidly increased from 3.8% to 25.2% in recent years. Interfacial modification is regarded as a highly effective strategy to address the humidity instability and improve the performance of PSCs. In this regard, l(+)-cysteine (l-cy), a typical trifunctional amino acid, is employed to modify the interface between mesoporous TiO2 (mp-TiO2) and perovskite. The incorporation of l-cy increases the PCE from 11.5% to 14.4%. Fluorescence measurements show that the electron injection from perovskite to mp-TiO2 is enhanced due to the interactions between the functional groups (-COOH, -NH2 and -SH) of l-cy and Ti4+ ions in mp-TiO2 and unsaturated Pb2+ and I- ions in the perovskite film. This work demonstrates a facile and effective method to achieve high-performance PSCs. |
| doi_str_mv | 10.1039/c9se00963a |
| format | Article |
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Interfacial modification is regarded as a highly effective strategy to address the humidity instability and improve the performance of PSCs. In this regard, l(+)-cysteine (l-cy), a typical trifunctional amino acid, is employed to modify the interface between mesoporous TiO2 (mp-TiO2) and perovskite. The incorporation of l-cy increases the PCE from 11.5% to 14.4%. Fluorescence measurements show that the electron injection from perovskite to mp-TiO2 is enhanced due to the interactions between the functional groups (-COOH, -NH2 and -SH) of l-cy and Ti4+ ions in mp-TiO2 and unsaturated Pb2+ and I- ions in the perovskite film. 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This work demonstrates a facile and effective method to achieve high-performance PSCs.</description><subject>Amino acids</subject><subject>Chemistry</subject><subject>Chemistry, Physical</subject><subject>Cysteine</subject><subject>Energy & Fuels</subject><subject>Energy conversion efficiency</subject><subject>Fluorescence</subject><subject>Functional groups</subject><subject>Ions</subject><subject>Lead</subject><subject>Materials Science</subject><subject>Materials Science, Multidisciplinary</subject><subject>Performance enhancement</subject><subject>Perovskites</subject><subject>Photovoltaic cells</subject><subject>Physical Sciences</subject><subject>Science & Technology</subject><subject>Solar cells</subject><subject>Technology</subject><subject>Titanium dioxide</subject><issn>2398-4902</issn><issn>2398-4902</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>AOWDO</sourceid><recordid>eNqNkE1LAzEYhBdRsNRe_AUBL0pZTd5sNpujFL-g0ks9L9n0jU27Teoma-m_t1IPPTqXmcPDDEyWXTN6zyhXD0ZFpFSVXJ9lA-CqygtF4fwkX2ajGFeUUmBQgJCDbP0eFs7unf8kW-zCd1y7hCSGVnfEYNtGsnNpSdrb8V1u9jGh80h0ImmJxPmEndUGSYNph-jJBmPYhi70kczdDIj2i5Paq-zC6jbi6M-H2cfz03zymk9nL2-Tx2luAIqUq0qWWrGCQwW2WDRlZaQAxqmUwBYGhC2sLBphZAVCNAyBScVkCaYUZWMrPsxujr3bLnz1GFO9Cn3nD5M1cEE554zxAzU-Ujtsgo3GoTdYbzu30d2-PnwkoFJAf8XLA139n564pJMLfhJ6n_gPMaZ6Pg</recordid><startdate>2020</startdate><enddate>2020</enddate><creator>Wu, Pengfei</creator><creator>Ma, Xiaotong</creator><creator>Zhao, Baohua</creator><creator>Liu, Chengben</creator><creator>Chen, Yanli</creator><creator>Yang, Guangwu</creator><creator>Li, Xiyou</creator><general>Royal Soc Chemistry</general><general>Royal Society of Chemistry</general><scope>AOWDO</scope><scope>BLEPL</scope><scope>DTL</scope><scope>7QO</scope><scope>7SP</scope><scope>7ST</scope><scope>7U6</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>L7M</scope><scope>P64</scope><orcidid>https://orcid.org/0000-0003-2548-2053</orcidid><orcidid>https://orcid.org/0000-0002-7044-9036</orcidid><orcidid>https://orcid.org/0000-0003-3252-7889</orcidid></search><sort><creationdate>2020</creationdate><title>Modifying perovskite solar cells with l(+)-cysteine at the interface between mesoporous TiO2 and perovskite</title><author>Wu, Pengfei ; Ma, Xiaotong ; Zhao, Baohua ; Liu, Chengben ; Chen, Yanli ; Yang, Guangwu ; Li, Xiyou</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c224t-9876a9143282f4db68c7521307721dc25f4f74b5c78255b1e21791762c656bf83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Amino acids</topic><topic>Chemistry</topic><topic>Chemistry, Physical</topic><topic>Cysteine</topic><topic>Energy & Fuels</topic><topic>Energy conversion efficiency</topic><topic>Fluorescence</topic><topic>Functional groups</topic><topic>Ions</topic><topic>Lead</topic><topic>Materials Science</topic><topic>Materials Science, Multidisciplinary</topic><topic>Performance enhancement</topic><topic>Perovskites</topic><topic>Photovoltaic cells</topic><topic>Physical Sciences</topic><topic>Science & Technology</topic><topic>Solar cells</topic><topic>Technology</topic><topic>Titanium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Pengfei</creatorcontrib><creatorcontrib>Ma, Xiaotong</creatorcontrib><creatorcontrib>Zhao, Baohua</creatorcontrib><creatorcontrib>Liu, Chengben</creatorcontrib><creatorcontrib>Chen, Yanli</creatorcontrib><creatorcontrib>Yang, Guangwu</creatorcontrib><creatorcontrib>Li, Xiyou</creatorcontrib><collection>Web of Science - Science Citation Index Expanded - 2020</collection><collection>Web of Science Core Collection</collection><collection>Science Citation Index Expanded</collection><collection>Biotechnology Research Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Environment Abstracts</collection><collection>Sustainability Science Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Sustainable energy & fuels</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Pengfei</au><au>Ma, Xiaotong</au><au>Zhao, Baohua</au><au>Liu, Chengben</au><au>Chen, Yanli</au><au>Yang, Guangwu</au><au>Li, Xiyou</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modifying perovskite solar cells with l(+)-cysteine at the interface between mesoporous TiO2 and perovskite</atitle><jtitle>Sustainable energy & fuels</jtitle><stitle>SUSTAIN ENERG FUELS</stitle><date>2020</date><risdate>2020</risdate><volume>4</volume><issue>2</issue><spage>878</spage><epage>883</epage><pages>878-883</pages><issn>2398-4902</issn><eissn>2398-4902</eissn><abstract>Perovskite solar cells (PSCs) have attracted extensive attention and their which power conversion efficiency (PCE) has rapidly increased from 3.8% to 25.2% in recent years. Interfacial modification is regarded as a highly effective strategy to address the humidity instability and improve the performance of PSCs. In this regard, l(+)-cysteine (l-cy), a typical trifunctional amino acid, is employed to modify the interface between mesoporous TiO2 (mp-TiO2) and perovskite. The incorporation of l-cy increases the PCE from 11.5% to 14.4%. Fluorescence measurements show that the electron injection from perovskite to mp-TiO2 is enhanced due to the interactions between the functional groups (-COOH, -NH2 and -SH) of l-cy and Ti4+ ions in mp-TiO2 and unsaturated Pb2+ and I- ions in the perovskite film. 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| subjects | Amino acids Chemistry Chemistry, Physical Cysteine Energy & Fuels Energy conversion efficiency Fluorescence Functional groups Ions Lead Materials Science Materials Science, Multidisciplinary Performance enhancement Perovskites Photovoltaic cells Physical Sciences Science & Technology Solar cells Technology Titanium dioxide |
| title | Modifying perovskite solar cells with l(+)-cysteine at the interface between mesoporous TiO2 and perovskite |
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