Hui-Seon Kim

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Related publications (20)

Morphological and compositional progress in halide perovskite solar cells

Ulf Anders Hagfeldt, Hui-Seon Kim

Perovskite solar cells (PSCs) reached a certified 23.7% efficiency in 2018 by boosting their surprisingly high open-circuit voltage (V-OC) and photocurrent. The suppressed recombination in PSCs significantly cut down the voltage loss between the bandgap en ...

Royal Society of Chemistry2019

Design, synthesis and characterization of 1,8-naphthalimide based fullerene derivative as electron transport material for inverted perovskite solar cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ulf Anders Hagfeldt, Hui-Seon Kim

A new fullerene derivative, PC61BNI, was designed and synthesized in which [6,6]-phenyl C-61-butyric acid methyl ester (PC61BM) was modified by replacing the methyl group with 1,8-naphthalimide (NI) to investigate the molecular structure modification effec ...

ELSEVIER SCIENCE SA2019

Novel p-dopant toward highly efficient and stable perovskite solar cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ulf Anders Hagfeldt, Jiyoun Seo, Hui-Seon Kim, Seckin Akin, Marko Stojanovic

Li-TFSI is the most common p-dopant for the hole conductor spiro-MeOTAD in the normal structure (n-i-p) of perovskite solar cells (PSCs), which consistently yield the highest power conversion efficiency (PCE) albeit at the risk of lower long-term operation ...

ROYAL SOC CHEMISTRY2018

Interfacial Engineering of Metal Oxides for Highly Stable Halide Perovskite Solar Cells

Nikolaos Vlachopoulos, Wolfgang Richard Tress, Ulf Anders Hagfeldt, Kazuteru Nonomura, Zaiwei Wang, Hui-Seon Kim, Monica Marcela Lira Cantu, Haibing Xie, Anna Morales Melgares

Oxides employed in halide perovskite solar cells (PSCs) have already demonstrated to deliver enhanced stability, low cost, and the ease of fabrication required for the commercialization of the technology. The most stable PSCs configuration, the carbon-base ...

WILEY2018

Effect of Selective Contacts on the Thermal Stability of Perovskite Solar Cells

Hui-Seon Kim, Xing Zhao

Thermal stability of CH3NH3PbT3 (MAPbI(3))based perovskite solar cells was investigated for normal structure including the mesoporous TiO2 layer and spiro-MeOTAD and the inverted structure with PCBM and NiO. MAPbI(3) was found to be intrinsically stable fr ...

Amer Chemical Soc2017

Acridine-based novel hole transporting material for high efficiency perovskite solar cells

Hui-Seon Kim

An acridine-based hole transporting material (ACR-TPA) without the spirobifluorene motif is synthesized via non complicated steps. The ACR-TPA film including Li-TFSI and 4-tert-butylpyridine (tBP) additives exhibits a hole mobility of 3.08 x 10(-3) cm(2) V ...

Royal Society of Chemistry2017

Wafer-scale reliable switching memory based on 2-dimensional layered organic-inorganic halide perovskite (vol 9, pg 15278, 2017)

Hui-Seon Kim

Royal Soc Chemistry2017

Effect of Cs-Incorporated NiOx on the Performance of Perovskite Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ulf Anders Hagfeldt, Jiyoun Seo, Hui-Seon Kim, Monica Marcela Lira Cantu, Haibing Xie

The effect of Cs-incorporated NiOx on perovskite solar cells with an inverted structure was investigated, where NiOx and PCBM were used as selective contacts for holes and electrons, respectively. It was found that the generation of an Ni phase in an NiOx ...

Amer Chemical Soc2017

Impact of Selective Contacts on Long-Term Stability of CH(3)NH(3)Pbl(3) Perovskite Solar Cells

Hui-Seon Kim

Instability of organic-inorganic halide perovskite solar cells (PSCs) under continuous light illumination in ambient air atmosphere has been studied. Efforts have been made to improve the PSC stability by chemical engineering of perovskite or device encaps ...

Amer Chemical Soc2016

High Efficiency Solid-State Sensitized Solar Cell-Based on Submicrometer Rutile TiO2 Nanorod and CH3NH3PbI3 Perovskite Sensitizer

Michael Graetzel, Hui-Seon Kim

We report a highly efficient solar cell based on a submicrometer (similar to 0.6 mu m) rutile TiO2 nanorod sensitized with CH3NH3PbI3 perovskite nanodots. Rutile nanorods were grown hydrothermally and their lengths were varied through the control of the re ...

American Chemical Society2013

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