16553405

Source:http://linkedlifedata.com/resource/pubmed/id/16553405

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0007634, umls-concept:C0013832, umls-concept:C0021968, umls-concept:C1280500, umls-concept:C1883712
pubmed:issue	12
pubmed:dateCreated	2006-3-23
pubmed:abstractText	It was observed that the ionic conductivity of the solid-state electrolyte LiI/3-hydroxypropionitrile (HPN) = 1:4 (molar ratio) decreased dramatically with increasing iodine (I(2)) concentration, which differs from the conduction behavior of the Grotthuss transport mechanism observed in liquid or gel electrolytes. The short-circuit photocurrent density (J(sc)) of the dye-sensitized solar cell (DSSC) based on this electrolyte system increases with increasing I(2) concentration until LiI/I(2) is 1:0.05 (molar ratio). Beyond this limitation, the J(sc) decreases. At low I(2) concentrations (I(2)/LiI < or = 0.05), the J(sc) is mainly affected by the diffusion of I(3)(-). An increase of the I(2) concentration leads to the enhancement of the diffusion of I(3)(-) and an increase of the J(sc). At high I(2) concentrations (I(2)/LiI > 0.05), the factors, including the increased light absorption by the I(3)(-), the increased recombination of electrons at the photoanode with I(3)(-), and the reduced ionic conductivity of the electrolyte, lead to a decrease of J(sc). At the same time, the open-circuit voltage (V(oc)) of the DSSC decreases monotonically with the ratio of I(2)/LiI due to increased dark current in the DSSC. The increased absorption of visible light by the electrolyte, the enhanced dark current, and the reduced ionic conductivity of the electrolyte contribute to the performance variation of the corresponding solid-state DSSC with increasing I(2) concentration.
pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/101157530
pubmed:status	PubMed-not-MEDLINE
pubmed:month	Mar
pubmed:issn	1520-6106
pubmed:author	pubmed-author:ChenLiquanL, pubmed-author:LiDongmeiD, pubmed-author:LiHongH, pubmed-author:LiuXizheX, pubmed-author:MengQingboQ, pubmed-author:WangHongxiaH, pubmed-author:WangZhaoxiangZ
pubmed:issnType	Print
pubmed:day	30
pubmed:volume	110
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	5970-4
pubmed:year	2006
pubmed:articleTitle	Effect of iodine addition on solid-state electrolyte LiI/3-hydroxypropionitrile (1:4) for dye-sensitized solar cells.
pubmed:affiliation	Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China.
pubmed:publicationType	Journal Article