Facile and eco-friendly synthesis of water-soluble Cu2-xSe nanoparticles for photovoltaic applications
Water-soluble Cu2-xSe (x = 0.2) nanoparticles (NPs) were synthesized by an eco-friendly modified chemical co-precipitation method at 70 °C within a short reaction time of 15 min using ascorbic acid. Cu2-xSe NPs showed pseudo-spherical and hexagonal shapes with sizes in the range of 20–50 nm. XRD ana...
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| Veröffentlicht in: | Materials science in semiconductor processing 2020-06, Vol.112, p.105013, Article 105013 |
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| creator | Pejjai, Babu Minnam Reddy, Vasudeva Reddy Kotte, Tulasi Ramakrishna Reddy Park, Chinho |
| description | Water-soluble Cu2-xSe (x = 0.2) nanoparticles (NPs) were synthesized by an eco-friendly modified chemical co-precipitation method at 70 °C within a short reaction time of 15 min using ascorbic acid. Cu2-xSe NPs showed pseudo-spherical and hexagonal shapes with sizes in the range of 20–50 nm. XRD analysis showed cubic structure to Cu2-xSe NPs. Thin films of Cu2−xSe were deposited by drop-casting the synthesized Cu2-xSe NPs solution using polyvinylpyrrolidone binder and their physical properties were investigated. The annealed Cu2-xSe NPs thin film showed a direct optical band gap of 1.82 eV and an indirect band gap of 1.69 eV. Hall Effect measurements of the annealed films showed p-type conductivity with a carrier concentration of 3.18 × 1019cm−3, resistivity of 1.31 × 10−1 Ω-cm, and hole mobility of 1.5 cm2/V-s. In order to investigate the potential of Cu2-xSe NPs as an absorber, solar cells with a device configuration of soda-lime glass (SLG)/Mo/Cu2-xSe NPs/CdS/i-ZnO/Al:ZnO/Ni/Ag were fabricated and tested, which showed a power conversion efficiency (PCE) of 0.095%. Even though the Cu2-xSeNPs solar cell showed low PCE, the use of environmentally benign reducer like ascorbic acid offers the benefit of eco-friendliness and compatibility of water-soluble Cu2-xSe NPs synthesis, and its ultimate use in solar cell as well as other applications.
•Water-soluble Cu2-xSe NPs were synthesized using ascorbic acid as a reducing agent.•Cu2-xSe NPs thin films were deposited by drop-casting using polyvinylpyrrolidone binder.•Cu2-xSe NPs based thin film solar cells with an efficiency of 0.095% were fabricated. |
| doi_str_mv | 10.1016/j.mssp.2020.105013 |
| format | Article |
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•Water-soluble Cu2-xSe NPs were synthesized using ascorbic acid as a reducing agent.•Cu2-xSe NPs thin films were deposited by drop-casting using polyvinylpyrrolidone binder.•Cu2-xSe NPs based thin film solar cells with an efficiency of 0.095% were fabricated.</description><identifier>ISSN: 1369-8001</identifier><identifier>EISSN: 1873-4081</identifier><identifier>DOI: 10.1016/j.mssp.2020.105013</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Cu2-xSe nanoparticles ; Cu2-xSe NPs thin film as absorber material ; Modified chemical co-precipitation method</subject><ispartof>Materials science in semiconductor processing, 2020-06, Vol.112, p.105013, Article 105013</ispartof><rights>2020 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c300t-1241424c10451850877f1a91caf4a4d8f011168ee0ace3d0d5d9361a3b2ae22c3</citedby><cites>FETCH-LOGICAL-c300t-1241424c10451850877f1a91caf4a4d8f011168ee0ace3d0d5d9361a3b2ae22c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.mssp.2020.105013$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Pejjai, Babu</creatorcontrib><creatorcontrib>Minnam Reddy, Vasudeva Reddy</creatorcontrib><creatorcontrib>Kotte, Tulasi Ramakrishna Reddy</creatorcontrib><creatorcontrib>Park, Chinho</creatorcontrib><title>Facile and eco-friendly synthesis of water-soluble Cu2-xSe nanoparticles for photovoltaic applications</title><title>Materials science in semiconductor processing</title><description>Water-soluble Cu2-xSe (x = 0.2) nanoparticles (NPs) were synthesized by an eco-friendly modified chemical co-precipitation method at 70 °C within a short reaction time of 15 min using ascorbic acid. Cu2-xSe NPs showed pseudo-spherical and hexagonal shapes with sizes in the range of 20–50 nm. XRD analysis showed cubic structure to Cu2-xSe NPs. Thin films of Cu2−xSe were deposited by drop-casting the synthesized Cu2-xSe NPs solution using polyvinylpyrrolidone binder and their physical properties were investigated. The annealed Cu2-xSe NPs thin film showed a direct optical band gap of 1.82 eV and an indirect band gap of 1.69 eV. Hall Effect measurements of the annealed films showed p-type conductivity with a carrier concentration of 3.18 × 1019cm−3, resistivity of 1.31 × 10−1 Ω-cm, and hole mobility of 1.5 cm2/V-s. In order to investigate the potential of Cu2-xSe NPs as an absorber, solar cells with a device configuration of soda-lime glass (SLG)/Mo/Cu2-xSe NPs/CdS/i-ZnO/Al:ZnO/Ni/Ag were fabricated and tested, which showed a power conversion efficiency (PCE) of 0.095%. Even though the Cu2-xSeNPs solar cell showed low PCE, the use of environmentally benign reducer like ascorbic acid offers the benefit of eco-friendliness and compatibility of water-soluble Cu2-xSe NPs synthesis, and its ultimate use in solar cell as well as other applications.
•Water-soluble Cu2-xSe NPs were synthesized using ascorbic acid as a reducing agent.•Cu2-xSe NPs thin films were deposited by drop-casting using polyvinylpyrrolidone binder.•Cu2-xSe NPs based thin film solar cells with an efficiency of 0.095% were fabricated.</description><subject>Cu2-xSe nanoparticles</subject><subject>Cu2-xSe NPs thin film as absorber material</subject><subject>Modified chemical co-precipitation method</subject><issn>1369-8001</issn><issn>1873-4081</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LAzEQhoMoWKt_wFP-QOpM9qNb8CLFqlDwoJ5DmkxoynazJGm1_95d6tnTDMM8Ly8PY_cIMwSsH3azfUr9TIIcDxVgccEm2MwLUUKDl8Ne1AvRAOA1u0lpBwCVxHrC3Eob3xLXneVkgnDRU2fbE0-nLm8p-cSD4986UxQptIfN8Ls8SPHzQbzTXeh1zN60lLgLkffbkMMxtFl7w3Xft97o7EOXbtmV022iu785ZV-r58_lq1i_v7wtn9bCFABZoCyxlKVBKCtsKmjmc4d6gUa7Upe2cYCIdUME2lBhwVZ2UdSoi43UJKUppkyec00MKUVyqo9-r-NJIajRlNqp0ZQaTamzqQF6PEM0NDt6iiqZwYIh6yOZrGzw_-G_PPlzbA</recordid><startdate>20200615</startdate><enddate>20200615</enddate><creator>Pejjai, Babu</creator><creator>Minnam Reddy, Vasudeva Reddy</creator><creator>Kotte, Tulasi Ramakrishna Reddy</creator><creator>Park, Chinho</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20200615</creationdate><title>Facile and eco-friendly synthesis of water-soluble Cu2-xSe nanoparticles for photovoltaic applications</title><author>Pejjai, Babu ; Minnam Reddy, Vasudeva Reddy ; Kotte, Tulasi Ramakrishna Reddy ; Park, Chinho</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c300t-1241424c10451850877f1a91caf4a4d8f011168ee0ace3d0d5d9361a3b2ae22c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Cu2-xSe nanoparticles</topic><topic>Cu2-xSe NPs thin film as absorber material</topic><topic>Modified chemical co-precipitation method</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pejjai, Babu</creatorcontrib><creatorcontrib>Minnam Reddy, Vasudeva Reddy</creatorcontrib><creatorcontrib>Kotte, Tulasi Ramakrishna Reddy</creatorcontrib><creatorcontrib>Park, Chinho</creatorcontrib><collection>CrossRef</collection><jtitle>Materials science in semiconductor processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pejjai, Babu</au><au>Minnam Reddy, Vasudeva Reddy</au><au>Kotte, Tulasi Ramakrishna Reddy</au><au>Park, Chinho</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Facile and eco-friendly synthesis of water-soluble Cu2-xSe nanoparticles for photovoltaic applications</atitle><jtitle>Materials science in semiconductor processing</jtitle><date>2020-06-15</date><risdate>2020</risdate><volume>112</volume><spage>105013</spage><pages>105013-</pages><artnum>105013</artnum><issn>1369-8001</issn><eissn>1873-4081</eissn><abstract>Water-soluble Cu2-xSe (x = 0.2) nanoparticles (NPs) were synthesized by an eco-friendly modified chemical co-precipitation method at 70 °C within a short reaction time of 15 min using ascorbic acid. Cu2-xSe NPs showed pseudo-spherical and hexagonal shapes with sizes in the range of 20–50 nm. XRD analysis showed cubic structure to Cu2-xSe NPs. Thin films of Cu2−xSe were deposited by drop-casting the synthesized Cu2-xSe NPs solution using polyvinylpyrrolidone binder and their physical properties were investigated. The annealed Cu2-xSe NPs thin film showed a direct optical band gap of 1.82 eV and an indirect band gap of 1.69 eV. Hall Effect measurements of the annealed films showed p-type conductivity with a carrier concentration of 3.18 × 1019cm−3, resistivity of 1.31 × 10−1 Ω-cm, and hole mobility of 1.5 cm2/V-s. In order to investigate the potential of Cu2-xSe NPs as an absorber, solar cells with a device configuration of soda-lime glass (SLG)/Mo/Cu2-xSe NPs/CdS/i-ZnO/Al:ZnO/Ni/Ag were fabricated and tested, which showed a power conversion efficiency (PCE) of 0.095%. Even though the Cu2-xSeNPs solar cell showed low PCE, the use of environmentally benign reducer like ascorbic acid offers the benefit of eco-friendliness and compatibility of water-soluble Cu2-xSe NPs synthesis, and its ultimate use in solar cell as well as other applications.
•Water-soluble Cu2-xSe NPs were synthesized using ascorbic acid as a reducing agent.•Cu2-xSe NPs thin films were deposited by drop-casting using polyvinylpyrrolidone binder.•Cu2-xSe NPs based thin film solar cells with an efficiency of 0.095% were fabricated.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.mssp.2020.105013</doi></addata></record> |
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| subjects | Cu2-xSe nanoparticles Cu2-xSe NPs thin film as absorber material Modified chemical co-precipitation method |
| title | Facile and eco-friendly synthesis of water-soluble Cu2-xSe nanoparticles for photovoltaic applications |
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