Tunable hysteresis effect for perovskite solar cells
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Otros documentos de la autoría: Rong, Yaoguang; Hu, Yue; Ravishankar, Sandheep; huawei, liu; Hou, Xiaomeng; Sheng, Yusong; Mei, Anyi; Xu, Mi; Bisquert, Juan; Han, Hongwei
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INVESTIGACIONMetadatos
Título
Tunable hysteresis effect for perovskite solar cellsAutoría
Fecha de publicación
2017-09-14Editor
Royal Society of ChemistryCita bibliográfica
RONG, Yaoguang; HU, Yue; RAVISHANKAR, Shandeep; LIU, Huawei; HOU, Xiaomeng; SHENG, Yusong; MEI, Anyi; XU, Mi; BISQUERT, Juan; HAN, Hongwei. Tunable hysteresis effect for perovskite solar cells. Energy & Environmental Science (2017), issue 11, p. 2383-2391Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://pubs.rsc.org/en/content/articlelanding/2017/ee/c7ee02048a#!divAbstractVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Perovskite solar cells (PSCs) usually suffer from a hysteresis effect in current–voltage measurements,
which leads to an inaccurate estimation of the device e
fficiency. Although ion migration, charge trapping/
d ... [+]
Perovskite solar cells (PSCs) usually suffer from a hysteresis effect in current–voltage measurements,
which leads to an inaccurate estimation of the device e
fficiency. Although ion migration, charge trapping/
detrapping, and accumulation have been proposed as a b
asis for the hysteresis, the
origin of the hysteresis
has not been apparently unraveled. Herein we reporte
d a tunable hysteresis effect based uniquely on open-
circuit voltage variations in printable mesos
copic PSCs with a simplified triple-layer TiO
2
/ZrO
2
/carbon
architecture. The electrons are collected by the compact TiO
2
/mesoporous TiO
2
(c-TiO
2
/mp-TiO
2
)bilayer,
and the holes are collected by the carbon layer. By adj
usting the spray deposition cycles for the c-TiO
2
layer
andUV-ozonetreatment,weachievedhysteresis-norm
al, hysteresis-free, and hysteresis-inverted PSCs.
Such unique trends of tunable hysteresis are anal
yzed by considering the polarization of the TiO
2
/perovskite
interface, which can accumulate positive charges reversibly. Successfully tuning of the hysteresis effect
clarifies the critical importance of the c-TiO
2
/perovskite interface in controlling the hysteretic trends
observed, providing important insights towards the understanding of this rapidly developing photovoltaic
technology. [-]
Publicado en
Energy & Environmental Science (2017), issue 11Proyecto de investigación
1) National Natural Science Foundation of China (91433203, 61474049, 51502141, 21702069); 2) Ministry of Science and Technology of China (2015AA034601), the 111 Project (No. B07038); 3) China Postdoctoral Science Foundation (2016M600588); 4) MINECO of Spain under Project MAT2016-76892-C3-1-R; 5) Generalitat Valenciana Project PROMETEOII/2014/020; 6) Generalitat Valenciana for the grant (GRISOLIA/2014/034).Derechos de acceso
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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