Publications de Minkyu Son | EPFL Graph Search

Boosting the performance of Cu2O photocathodes for unassisted solar water splitting devices

Linfeng Pan, Jinhyun Kim, Ulf Anders Hagfeldt, Jingshan Luo, Matthew Thomas Mayer, Amita Ummadisingu, Minkyu Son

Although large research efforts have been devoted to photoelectrochemical (PEC) water splitting in the past several decades, the lack of efficient, stable and Earth-abundant photoelectrodes remains a bottleneck for practical application. Here, we report a ...

2018

Solution-Processed Cu2S Photocathodes for Photoelectrochemical Water Splitting

Jingshan Luo, Matthew Thomas Mayer, Linfeng Pan, Weiwei Zhang, Minkyu Son, Yuxiang Yu

2018

A copper nickel mixed oxide hole selective layer for Au-free transparent cuprous oxide photocathodes

Michael Graetzel, Jingshan Luo, Matthew Thomas Mayer, Marcel Roland Schreier, Ludmilla Steier, Minkyu Son

State-of-the-art cuprous oxide (Cu2O) photocathodes for photoelectrochemical (PEC) water splitting have a long tradition of using gold (Au)-coated F-doped SnO2 (FTO) substrates for the improvement of Cu2O electrodeposition and overall PEC performance. Au i ...

Royal Soc Chemistry2017

Efficient electron transfer and reduced recombination with Nd:YAG laser scribing for high-efficiency quantum dot-sensitized solar cells

Minkyu Son

Inefficient charge transfer and charge recombination are critical but challenging issues that restrict the power conversion efficiency (PCE) of quantum-dot-sensitized solar cells (QDSSCs). These issues must be addressed to boost the performance of QDSSCs. ...

Elsevier2017

Enhanced Charge Collection with Passivation Layers in Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Yonghui Lee, Shaik Mohammed Zakeeruddin, Peng Gao, Jingshan Luo, Kyung Taek Cho, Jiyoun Seo, Minkyu Son

The Al2O3 passivation layer is beneficial for mesoporous TiO2-based perovskite solar cells when it is deposited selectively on the compact TiO2 surface. Such a passivation layer suppressing surface recombination can be formed by thermal decomposition of th ...

Wiley-V C H Verlag Gmbh2016

Polymer counter electrode of poly(3,4-ethylenedioxythiophene):Poly(4-styrenesulfonate) containing TiO2 nano-particles for dye-sensitized solar cells

Minkyu Son

A counter electrode of dye-sensitized solar cells (DSC) is an important component, which often limits the cell performance. Here we report a low-cost and high-performance polymer counter electrode of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate ...

Elsevier2016

Surface Modification of Polymer Counter Electrode for Low Cost Dye-sensitized Solar Cells

Minkyu Son

Poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) was already used as a counter electrode material of dye-sensitized solar cells (DSCs) in other previous researches but its low catalytic activity has been a sticking point. Here we repor ...

Pergamon-Elsevier Science Ltd2016

Cu2O Nanowire Photocathodes for Efficient and Durable Solar Water Splitting

Michael Graetzel, Jingshan Luo, Matthew Thomas Mayer, Marcel Roland Schreier, Ludmilla Steier, Minkyu Son

Due to its abundance, scalability, and nontoxicity, Cu2O has attracted extensive attention toward solar energy conversion, and it is the best performing metal oxide material. Until now, the high efficiency devices are all planar in structure, and their pho ...

American Chemical Society2016