Determination of thermal and optical parameters of melanins by photopyroelectric spectroscopy
Photopyroelectric spectroscopy (PPE) was used to study the thermal and optical properties of electropolymerized melanins. The photopyroelectric intensity signal and its phase were independently measured as a function of wavelength, as well as a function of chopping frequency for a given wavelength i...
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| creator | de Albuquerque, J. E Giacomantonio, C White, A Meredith, P |
| description | Photopyroelectric spectroscopy (PPE) was used to study the thermal and
optical properties of electropolymerized melanins. The photopyroelectric
intensity signal and its phase were independently measured as a function of
wavelength, as well as a function of chopping frequency for a given wavelength
in the saturation part of the PPE spectrum. Equations for both the intensity
and the phase of the PPE signal were used to fit the experimental results. From
the fittings we obtained for the first time, with great accuracy, the thermal
diffusivity coefficient, the thermal conductivity and the specific heat of the
samples, as well as a value for the condensed phase optical gap, which we found
to be 1.70 eV. |
| doi_str_mv | 10.48550/arxiv.cond-mat/0504124 |
| format | Article |
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optical properties of electropolymerized melanins. The photopyroelectric
intensity signal and its phase were independently measured as a function of
wavelength, as well as a function of chopping frequency for a given wavelength
in the saturation part of the PPE spectrum. Equations for both the intensity
and the phase of the PPE signal were used to fit the experimental results. From
the fittings we obtained for the first time, with great accuracy, the thermal
diffusivity coefficient, the thermal conductivity and the specific heat of the
samples, as well as a value for the condensed phase optical gap, which we found
to be 1.70 eV.</description><identifier>DOI: 10.48550/arxiv.cond-mat/0504124</identifier><language>eng</language><subject>Physics - Disordered Systems and Neural Networks ; Physics - Soft Condensed Matter</subject><creationdate>2005-04</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,885</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/cond-mat/0504124$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.1063/1.2009833$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.48550/arXiv.cond-mat/0504124$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>de Albuquerque, J. E</creatorcontrib><creatorcontrib>Giacomantonio, C</creatorcontrib><creatorcontrib>White, A</creatorcontrib><creatorcontrib>Meredith, P</creatorcontrib><title>Determination of thermal and optical parameters of melanins by photopyroelectric spectroscopy</title><description>Photopyroelectric spectroscopy (PPE) was used to study the thermal and
optical properties of electropolymerized melanins. The photopyroelectric
intensity signal and its phase were independently measured as a function of
wavelength, as well as a function of chopping frequency for a given wavelength
in the saturation part of the PPE spectrum. Equations for both the intensity
and the phase of the PPE signal were used to fit the experimental results. From
the fittings we obtained for the first time, with great accuracy, the thermal
diffusivity coefficient, the thermal conductivity and the specific heat of the
samples, as well as a value for the condensed phase optical gap, which we found
to be 1.70 eV.</description><subject>Physics - Disordered Systems and Neural Networks</subject><subject>Physics - Soft Condensed Matter</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNqNjrsOwiAUhlkcjPoMnsWxLdU2cfcSH8DVkCPSlAQ4BIixby-YPoDTf8k3fIxtW153x77nDYaPfteS3KuymBre867dd0v2OKukgtUOkyYHNEAa80YD6F5APmmZu8eAtoCxEFYZdNpFeE7gR0rkp0DKKJmClhB9KRRlvtdsMaCJajPniu2ul_vpVv10hA_aYphE0RJZS8xah3-5LxG0S20</recordid><startdate>20050405</startdate><enddate>20050405</enddate><creator>de Albuquerque, J. E</creator><creator>Giacomantonio, C</creator><creator>White, A</creator><creator>Meredith, P</creator><scope>GOX</scope></search><sort><creationdate>20050405</creationdate><title>Determination of thermal and optical parameters of melanins by photopyroelectric spectroscopy</title><author>de Albuquerque, J. E ; Giacomantonio, C ; White, A ; Meredith, P</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-arxiv_primary_cond_mat_05041243</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Physics - Disordered Systems and Neural Networks</topic><topic>Physics - Soft Condensed Matter</topic><toplevel>online_resources</toplevel><creatorcontrib>de Albuquerque, J. E</creatorcontrib><creatorcontrib>Giacomantonio, C</creatorcontrib><creatorcontrib>White, A</creatorcontrib><creatorcontrib>Meredith, P</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>de Albuquerque, J. E</au><au>Giacomantonio, C</au><au>White, A</au><au>Meredith, P</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Determination of thermal and optical parameters of melanins by photopyroelectric spectroscopy</atitle><date>2005-04-05</date><risdate>2005</risdate><abstract>Photopyroelectric spectroscopy (PPE) was used to study the thermal and
optical properties of electropolymerized melanins. The photopyroelectric
intensity signal and its phase were independently measured as a function of
wavelength, as well as a function of chopping frequency for a given wavelength
in the saturation part of the PPE spectrum. Equations for both the intensity
and the phase of the PPE signal were used to fit the experimental results. From
the fittings we obtained for the first time, with great accuracy, the thermal
diffusivity coefficient, the thermal conductivity and the specific heat of the
samples, as well as a value for the condensed phase optical gap, which we found
to be 1.70 eV.</abstract><doi>10.48550/arxiv.cond-mat/0504124</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Physics - Disordered Systems and Neural Networks Physics - Soft Condensed Matter |
| title | Determination of thermal and optical parameters of melanins by photopyroelectric spectroscopy |
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