A5017747863- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Nanomaterials and Printing Technologies
- Thin-Film Transistor Technologies
- Perovskite Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Silicon and Solar Cell Technologies
- ZnO doping and properties
- Advanced Surface Polishing Techniques
- Advanced Materials and Mechanics
- Quantum Dots Synthesis And Properties
- solar cell performance optimization
- Nanowire Synthesis and Applications
- Advanced MEMS and NEMS Technologies
Kyungpook National University
2016-2020
Recently, the rapid and significant progress in development of various stretchable electronics has triggered intense research interest. Although remarkable features transfer printing processes have enabled use inorganic crystalline semiconductors types devices, including solar cells, light‐emitting diodes, circuits, photodetectors, there are few examples using thin film semiconductors. Transfer amorphous remains a challenge because no suitable sacrificial layer is available. To meet this...
A major problem in the application of mesoporous TiO2 as an electron transport layer for flexible perovskite solar cells is that a high-temperature sintering process required to remove organic additives from layer. facile oxygen plasma herein demonstrated fabricate mesoporous-structured with significant photovoltaic performance at low temperatures. When low-temperature processed modified via plasma, hinder charge are successfully decomposed. The treatment improves wettability and...
Despite their excellent electrical and optical properties, Ag nanowires (NWs) suffer from oxidation when exposed to air for several days. In this study, we synthesized a Cs carbonate-incorporated overcoating layer by spin-coating ultraviolet curing prevent the thermal of NWs. incorporation increased decomposition temperature layer, thus enhancing its resistance. The effects on optoelectrical properties stability NWs were investigated in detail. NW electrode reinforced with exhibited after...
The mesoporous TiO2 nanoparticle-based scaffold structure is the best electron transport layer (ETL) for perovskite solar cells (PSCs) and still used in most PSCs with optimal photovoltaic characteristics. However, high sintering temperature of nanoparticles required to remove binders from paste limits PSC application flexible electronics. In this study, a simple interface modification process involving ethanol rinsing developed enhance characteristics low-temperature processed PSCs. This...
Increasing interests in stretchable electronic devices have resulted vigorous research activities, most of which are focused on structural configurations. Diverse configurations available for stretchability, including stiff-island, serpentine, and buckled structures. With easily deformable shapes simple fabrication processes, structures the potential to realize stretchability. However, conventional exhibit stretchability only a single-axis direction. In present study, new type cross-buckled...
This paper introduces a simple hydrazine treatment method to reduce the yellowing of silver nanowire transparent conductive electrodes. To investigate effects on electrodes, optical and electrical properties electrodes were analyzed before after treatment. The optimal conditions investigated by varying concentration thickness hydrazine; effect long-term stability nanowires was also analyzed.
We demonstrate a compact amorphous silicon (a-Si) solar module to be used as high-voltage power supply. In comparison with the organic module, main advantages of a-Si are its compatibility photolithography techniques and relatively high conversion efficiency. The open circuit voltage cells can easily controlled by serially interconnecting cells. Moreover, patterned in any desired shapes areal densities. Using photolithographic technique, we fabricate noticeable photovoltaic characteristics...
Transfer printing of inorganic amorphous thin film semiconductors remains a challenge because no suitable sacrificial layer is available. In article number 1601269, Dong-Ho Kim, Sungjin Jo, and co-workers demonstrate versatile transfer method using water-soluble germanium oxide for fabricating stretchable a-Si solar cells. This first attempt to fabricate cells with will significantly broaden the scope cell applications.