Listar Institute of Advanced Materials (INAM) por autoría "23f82616-3b2e-4eda-961a-a42d187a6006"
Mostrando ítems 1-12 de 12
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An Equivalent Circuit for Perovskite Solar Cell Bridging Sensitized to Thin Film Architectures
Yoo, So-Min; YOON, SEOG JOON; Anta, Juan A.; Lee, Hyo Joong; Boix, Pablo P; Mora-Sero, Ivan Elsevier (2019-08-15)Fundamental working mechanisms of perovskite solar cells (PSCs) remain an elusive topic of research. Impedance spectroscopy (IS) has been key to characterizing photovoltaic devices; however, its application to PSCs has ... -
Controlling the Phase Segregation in Mixed Halide Perovskites through Nanocrystal Size
Gualdrón Reyes, Andrés Fabián; YOON, SEOG JOON; Barea, Eva M; Agouram, Said; Muñoz-Sanjosé, Vicente; Meléndez, Ángel M.; Niño-Gómez, Martha E.; Mora-Sero, Ivan American Chemical Society (2019)Mixed halide perovskites are one of the promising candidates in developing solar cells and light-emitting diodes (LEDs), among other applications, because of their tunable optical properties. Nonetheless, photoinduced phase ... -
Effect of Light Illumination on Mixed Halide Lead Perovskites: Reversible or Irreversible Transformation
Huang, Weixin; YOON, SEOG JOON; Sapkota, Pitambar American Chemical Society (2018)One intriguing aspect of mixed halide lead perovskites (e.g., CH3NH3PbBrxI3–x) is halide ion segregation when subjected to visible illumination, but this aspect gives rise to the concerns regarding the influence of halide ... -
Efficient and Stable Blue- and Red-Emitting Perovskite Nanocrystals through Defect Engineering: PbX2 Purification
Lee, ChaeHyun; Shin, YeJi; Villanueva Antoli, Alexis; Das Adhikari, Samrat; Rodriguez-Pereira, Jhonatan; Macak, Jan; Mesa, Camilo A.; Gimenez, Sixto; YOON, SEOG JOON; Gualdrón Reyes, Andrés Fabián; Mora-Sero, Ivan American Chemical Society (2021-11-11)Current efforts to reduce the density of structural defects such as surface passivation, doping, and modified synthetic protocols have allowed us to grow high-quality perovskite nanocrystals (PNCs). However, the role of ... -
Hole-induced polymerized interfacial film of polythiophene as co-sensitizer and back-electron injection barrier layer in dye-sensitized TiO2 nanotube array
Shrestha, Nabeen K.; YOON, SEOG JOON; Bathula, Chinna; Opoku, Henry; Noh, Yong-Young Elsevier (2019-04)In this work, we demonstrate that an ultra-thin film of polythiophene deposited interfacially via hole-induced polymerization on the surface of dye-sensitized TiO2 nanotube array acts as co-sensitizer, and hinders back-electron ... -
Ligand & band gap engineering: tailoring the protocol synthesis for achieving high-quality CsPbI3 quantum dots
Hassanabadi, Ehsan; Latifi, Masoud; Gualdrón Reyes, Andrés Fabián; Masi, Sofia; YOON, SEOG JOON; Poyatos, Macarena; Julian-Lopez, Beatriz; Mora-Sero, Ivan Royal Society of Chemistry (2020)Hot-injection has become the most widespread method used for the synthesis of perovskite quantum dots (QDs) with enormous interest for application in optoelectronic devices. However, there are some aspects of the chemistry ... -
Operation Mechanism of Perovskite Quantum Dot Solar Cells Probed by Impedance Spectroscopy
Zolfaghari, Zahra; Hassanabadi, Ehsan; Pitarch-Tena, Didac; YOON, SEOG JOON; Shariatinia, Zahra; van de Lagemaat, Jao; Luther, Joseph M.; Mora-Sero, Ivan American Chemical Society (2018)We fabricated perovskite quantum dot solar cells (PQDSCs) and varied the thickness of the QD layer by controlling the number of deposition cycles; the cells were systematically investigated with impedance spectroscopy. ... -
Photocatalytic and Photoelectrochemical Degradation of Organic Compounds with All-Inorganic Metal Halide Perovskite Quantum Dots
Cardenas-Morcoso, Drialys; Gualdrón Reyes, Andrés Fabián; Ferreira Vitoreti, Ana Beatriz; García-Tecedor, Miguel; YOON, SEOG JOON; Solis de la Fuente, Mauricio; Mora-Sero, Ivan; Gimenez, Sixto American Chemical Society (2019-01)Inspired by the outstanding optoelectronic properties reported for all-inorganic halide perovskite quantum dots (QDs), we have evaluated the potential of these materials toward the photocatalytic and photoelectrochemical ... -
Preparation of nanoscale inorganic CsPbIxBr3-x perovskite photosensitizers on the surface of mesoporous TiO2 film for solid-state sensitized solar cells
Yoo, So-Min; Lee, Seul-Yi; Kim, Gitae; Velilla, Esteban; Mora-Sero, Ivan; YOON, SEOG JOON; Shin, Taeho; Lee, Soul-Hee; Ahn, Seokhoon; Song, Min-Kyoung; Kim, Myoung; Lee, Hyo Joong Elsevier (2021-06-15)Metal chalcogenide quantum dot (QD)-like all-inorganic nanoscale perovskite photosensitizers of CsPbIxBr3-x were prepared on the surface of mesoscopic TiO2 film by a direct two-step spin-coating of lead and cesium halide ... -
Recent insights for achieving mixed halide perovskites without halide segregation
Gualdrón Reyes, Andrés Fabián; YOON, SEOG JOON; Mora-Sero, Ivan Elsevier (2018-10)The incorporation of halide perovskites in optoelectronics has provided a fast advance in the fabrication of new sensitizers with a balanced light-harvesting, free carrier transportation, and a progressive overcoming of ... -
Synthetic and Post-Synthetic Strategies to Improve Photoluminescence Quantum Yields in Perovskite Quantum Dots
Lee, ChaeHyun; Lee, Soo Jeong; Shin, YeJi; Woo, Yeonsu; Han, Sung-Hwan Han; Gualdrón Reyes, Andrés Fabián; Mora-Sero, Ivan; YOON, SEOG JOON MDPI (2021-08-10)Making high-quality raw materials is the key to open the versatile potential of next generation materials. All-inorganic CsPbX3 (X: Cl−, Br−, and/or I−) perovskite quantum dots (PQDs) have been applied in various optoelectronic ... -
Unravelling the Photocatalytic Behavior of All-Inorganic Mixed Halide Perovskites: The Role of Surface Chemical States
Gualdrón Reyes, Andrés Fabián; Rodriguez-Pereira, Jhonatan; Amado - González, Eliseo; Rueda-P, Jorge; Ospina, Rogelio; Masi, Sofia; YOON, SEOG JOON; Tirado, Juan; Jaramillo, Franklin; Agouram, Said; Muñoz-Sanjosé, Vicente; Gimenez, Sixto; Mora-Sero, Ivan American Chemical Society (2019-12)Within the most mesmerizing materials in the world of optoelectronics, mixed halide perovskites (MHPs) have been distinguished because of the tunability of their optoelectronic properties, balancing both the light-harvesting ...