Tailoring Crystal Structure of FA0.83Cs0.17PbI3 Perovskite Through Guanidinium Doping for Enhanced Performance and Tunable Hysteresis of Planar Perovskite Solar Cells
Impacto
Scholar |
Otros documentos de la autoría: Duy Pham, Ngoc; Zhang, Chunmei; Tiong, Vincent Tiing; Zhang, Shengli; Will, Geoffrey; Bou, Agustín; Bisquert, Juan; Shaw, Paul E.; Du, Aijun; Wilson, Gregory J; Wang, Hongxia
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
comunitat-uji-handle4:
INVESTIGACIONEste recurso está restringido
https://doi.org/10.1002/adfm.201806479 |
Metadatos
Título
Tailoring Crystal Structure of FA0.83Cs0.17PbI3 Perovskite Through Guanidinium Doping for Enhanced Performance and Tunable Hysteresis of Planar Perovskite Solar CellsAutoría
Fecha de publicación
2019Editor
WileyISSN
1616-301X; 1616-3028Cita bibliográfica
PHAM, Ngoc Duy, et al. Tailoring crystal structure of FA0. 83Cs0. 17PbI3 perovskite Through guanidinium doping for Enhanced performance and Tunable hysteresis of planar perovskite solar cells. Advanced Functional Materials, 2019, vol. 29, no 1, p. 1806479Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.201806479Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Current-voltage hysteresis of perovskite solar cells (PSCs) has raised the concern of accurate performance measurement in practice. Although various theories have been proposed to elucidate this phenomenon, the origin ... [+]
Current-voltage hysteresis of perovskite solar cells (PSCs) has raised the concern of accurate performance measurement in practice. Although various theories have been proposed to elucidate this phenomenon, the origin of hysteresis is still an open question. Herein, the use of guanidinium cation (Gu(+))-dopant is demonstrated to tailor the crystal structure of mixed-cation formamidinium-cesium lead triiodide (FA(0.83)Cs(0.17)PbI(3)) perovskite, resulting in an improved energy conversion efficiency and tunable current-voltage hysteresis characteristic in planar solar cells. Particularly, when the concentration of Gu-dopant for the perovskite film increases, the normal hysteresis initially observed in the pristine PSC is first suppressed with 2%-Gu-dopant, then changed to inverted hysteresis with a higher Gu-dopant. The hysteresis tunability behavior is attributed to the interplay of charge/ion accumulation and recombination at interfaces in the PSC. Furthermore, compared to the cell without Gu(+)-dopant, the optimal content of 2% Gu(+)-dopant also increases the device efficiency by 14%, reaching over 17% under one sun illumination. [-]
Publicado en
Advanced Functional Materials, 2019, vol. 29, no 1Proyecto de investigación
Australian Research Council Future Fellowship: FT120100674; Queensland-Chinese Academy of Science (Q-CAS) collaborative research fund; Science and Engineering faculty, QUTDerechos de acceso
Copyright © John Wiley & Sons, Inc.
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
Aparece en las colecciones
- INAM_Articles [514]