Low cost high-efficiency amorphous silicon solar cells with improved light-soaking stability
We investigate the performance of amorphous Si (a-Si) solar cells fabricated with Inductively Coupled Plasma (ICP) deposition technique. The ICP system produces a-Si films with low defect density (3×1015cm−3), resulting in a conversion efficiency of 9.6%. Deep level transient spectroscopy (DLTS) rev...
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| Veröffentlicht in: | Solar energy materials and solar cells 2012-03, Vol.98, p.277-282 |
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| creator | Huang, Jung Y. Lin, Chien Y. Shen, Chang-Hong Shieh, Jia-Min Dai, Bau-Tong |
| description | We investigate the performance of amorphous Si (a-Si) solar cells fabricated with Inductively Coupled Plasma (ICP) deposition technique. The ICP system produces a-Si films with low defect density (3×1015cm−3), resulting in a conversion efficiency of 9.6%. Deep level transient spectroscopy (DLTS) reveals that hole carriers trapped at defects near the valence band edge delocalize at 130K; while trapped electrons can only be emitted into the conduction band near room temperature. Spectrally resolved DLTS study further indicates that light soaking enhances the emission rate of the tapped electrons near the conduction band edge while reduces the transition moments from the hole-trapping defect levels to the conduction band. The combined effects and light soaking-induced defects are responsible for the degradation of a thin film solar cell by light soaking.
► ICP CVD thin-film solar cells have low defect density and high conversion efficiency. ► The carrier transport is mainly limited by the carrier-trapping defects near the band edges. ► The Si framework of ICP CVD films is stable and can endure prolonged light soaking. ► Light soaking reduces the optical transition moments and increases the emission rate of tapped electrons. |
| doi_str_mv | 10.1016/j.solmat.2011.11.023 |
| format | Article |
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► ICP CVD thin-film solar cells have low defect density and high conversion efficiency. ► The carrier transport is mainly limited by the carrier-trapping defects near the band edges. ► The Si framework of ICP CVD films is stable and can endure prolonged light soaking. ► Light soaking reduces the optical transition moments and increases the emission rate of tapped electrons.</description><identifier>ISSN: 0927-0248</identifier><identifier>EISSN: 1879-3398</identifier><identifier>DOI: 10.1016/j.solmat.2011.11.023</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Amorphous silicon ; Applied sciences ; Direct energy conversion and energy accumulation ; Electrical engineering. Electrical power engineering ; Electrical power engineering ; Energy ; Exact sciences and technology ; Light soaking ; Natural energy ; Photoelectric conversion ; Photovoltaic conversion ; Solar cell ; Solar cells. Photoelectrochemical cells ; Solar energy ; Thin film photovoltaics</subject><ispartof>Solar energy materials and solar cells, 2012-03, Vol.98, p.277-282</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c368t-aefed7ed2681f3e418abd377ef4aacd8c2178003a9b50c02149bfb90fb7e97463</citedby><cites>FETCH-LOGICAL-c368t-aefed7ed2681f3e418abd377ef4aacd8c2178003a9b50c02149bfb90fb7e97463</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.solmat.2011.11.023$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25462093$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Huang, Jung Y.</creatorcontrib><creatorcontrib>Lin, Chien Y.</creatorcontrib><creatorcontrib>Shen, Chang-Hong</creatorcontrib><creatorcontrib>Shieh, Jia-Min</creatorcontrib><creatorcontrib>Dai, Bau-Tong</creatorcontrib><title>Low cost high-efficiency amorphous silicon solar cells with improved light-soaking stability</title><title>Solar energy materials and solar cells</title><description>We investigate the performance of amorphous Si (a-Si) solar cells fabricated with Inductively Coupled Plasma (ICP) deposition technique. The ICP system produces a-Si films with low defect density (3×1015cm−3), resulting in a conversion efficiency of 9.6%. Deep level transient spectroscopy (DLTS) reveals that hole carriers trapped at defects near the valence band edge delocalize at 130K; while trapped electrons can only be emitted into the conduction band near room temperature. Spectrally resolved DLTS study further indicates that light soaking enhances the emission rate of the tapped electrons near the conduction band edge while reduces the transition moments from the hole-trapping defect levels to the conduction band. The combined effects and light soaking-induced defects are responsible for the degradation of a thin film solar cell by light soaking.
► ICP CVD thin-film solar cells have low defect density and high conversion efficiency. ► The carrier transport is mainly limited by the carrier-trapping defects near the band edges. ► The Si framework of ICP CVD films is stable and can endure prolonged light soaking. ► Light soaking reduces the optical transition moments and increases the emission rate of tapped electrons.</description><subject>Amorphous silicon</subject><subject>Applied sciences</subject><subject>Direct energy conversion and energy accumulation</subject><subject>Electrical engineering. Electrical power engineering</subject><subject>Electrical power engineering</subject><subject>Energy</subject><subject>Exact sciences and technology</subject><subject>Light soaking</subject><subject>Natural energy</subject><subject>Photoelectric conversion</subject><subject>Photovoltaic conversion</subject><subject>Solar cell</subject><subject>Solar cells. Photoelectrochemical cells</subject><subject>Solar energy</subject><subject>Thin film photovoltaics</subject><issn>0927-0248</issn><issn>1879-3398</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp9kEtrHDEQhEWIIRs7_yAHXUJOs2k9PDO6GIJxHrCQi30LCI2m5dVmZrRWyzb776PNGh8DDX2p6ur6GPsoYC1AtF92a0rT7MpaghDrOiDVG7YSfWcapUz_lq3AyK4Bqft37D3RDgBkq_SK_d6kZ-4TFb6N99sGQ4g-4uIP3M0p77fpkTjFKfq08BriMvc4TcSfY9nyOO9zesKRT9VbGkruT1zuORU3VEs5XLCz4CbCDy_7nN19u7m9_tFsfn3_ef1103jV9qVxGHDscJRtL4JCLXo3jKrrMGjn_Nh7KboeQDkzXIIHKbQZwmAgDB2aTrfqnH0-3a3vPDwiFTtHOv7pFqwFrJGqkjEaqlKflD4noozB7nOcXT5YAfbI0u7siaU9srR1Kstq-_QS4Mi7KWS3-EivXnmpWwnmqLs66bC2fYqYLf2jiWPM6IsdU_x_0F8MgI5c</recordid><startdate>20120301</startdate><enddate>20120301</enddate><creator>Huang, Jung Y.</creator><creator>Lin, Chien Y.</creator><creator>Shen, Chang-Hong</creator><creator>Shieh, Jia-Min</creator><creator>Dai, Bau-Tong</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope></search><sort><creationdate>20120301</creationdate><title>Low cost high-efficiency amorphous silicon solar cells with improved light-soaking stability</title><author>Huang, Jung Y. ; Lin, Chien Y. ; Shen, Chang-Hong ; Shieh, Jia-Min ; Dai, Bau-Tong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c368t-aefed7ed2681f3e418abd377ef4aacd8c2178003a9b50c02149bfb90fb7e97463</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Amorphous silicon</topic><topic>Applied sciences</topic><topic>Direct energy conversion and energy accumulation</topic><topic>Electrical engineering. Electrical power engineering</topic><topic>Electrical power engineering</topic><topic>Energy</topic><topic>Exact sciences and technology</topic><topic>Light soaking</topic><topic>Natural energy</topic><topic>Photoelectric conversion</topic><topic>Photovoltaic conversion</topic><topic>Solar cell</topic><topic>Solar cells. Photoelectrochemical cells</topic><topic>Solar energy</topic><topic>Thin film photovoltaics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huang, Jung Y.</creatorcontrib><creatorcontrib>Lin, Chien Y.</creatorcontrib><creatorcontrib>Shen, Chang-Hong</creatorcontrib><creatorcontrib>Shieh, Jia-Min</creatorcontrib><creatorcontrib>Dai, Bau-Tong</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><jtitle>Solar energy materials and solar cells</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huang, Jung Y.</au><au>Lin, Chien Y.</au><au>Shen, Chang-Hong</au><au>Shieh, Jia-Min</au><au>Dai, Bau-Tong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low cost high-efficiency amorphous silicon solar cells with improved light-soaking stability</atitle><jtitle>Solar energy materials and solar cells</jtitle><date>2012-03-01</date><risdate>2012</risdate><volume>98</volume><spage>277</spage><epage>282</epage><pages>277-282</pages><issn>0927-0248</issn><eissn>1879-3398</eissn><abstract>We investigate the performance of amorphous Si (a-Si) solar cells fabricated with Inductively Coupled Plasma (ICP) deposition technique. The ICP system produces a-Si films with low defect density (3×1015cm−3), resulting in a conversion efficiency of 9.6%. Deep level transient spectroscopy (DLTS) reveals that hole carriers trapped at defects near the valence band edge delocalize at 130K; while trapped electrons can only be emitted into the conduction band near room temperature. Spectrally resolved DLTS study further indicates that light soaking enhances the emission rate of the tapped electrons near the conduction band edge while reduces the transition moments from the hole-trapping defect levels to the conduction band. The combined effects and light soaking-induced defects are responsible for the degradation of a thin film solar cell by light soaking.
► ICP CVD thin-film solar cells have low defect density and high conversion efficiency. ► The carrier transport is mainly limited by the carrier-trapping defects near the band edges. ► The Si framework of ICP CVD films is stable and can endure prolonged light soaking. ► Light soaking reduces the optical transition moments and increases the emission rate of tapped electrons.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.solmat.2011.11.023</doi><tpages>6</tpages></addata></record> |
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| subjects | Amorphous silicon Applied sciences Direct energy conversion and energy accumulation Electrical engineering. Electrical power engineering Electrical power engineering Energy Exact sciences and technology Light soaking Natural energy Photoelectric conversion Photovoltaic conversion Solar cell Solar cells. Photoelectrochemical cells Solar energy Thin film photovoltaics |
| title | Low cost high-efficiency amorphous silicon solar cells with improved light-soaking stability |
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