고분자공학전공 고분자공학전공

실험실 소개

• 차세대 전자 소재 나노입자, 고분자, 양자점, 페로브스카이트등 개발
• 전자 소재 계면 (표면처리) 기술 개발
• 차세대 LEDs, 태양전지등 고성능 전자 소자 개발
• 투명 및 박막 필름 제조 기술개발
• 반도체 소재 및 소자 특성 분석

Next generation electronic materials and devices

Polymer based optoelecronic devices.

• Polymer solar cells
• Polymer LEDs
• Polymer based Dim-light device
• Interface engineering with Ionic liquid, and conjugated polyelectrolyte

Synthesis of quantum dots, perovskite and metal nanoparticle.

• Synthesis of quantum dots (PbS, PbSe, CdS, CdSe, etc) using colloidal method.
• Synthesis of quantum dots by using microfluidic method.
• Synthesis of Perovskite Materials (ABX3) and perovskite QD
• Synthesis of solution-processable metal oxide TiO2, ZnO, SnO2 etc.
• Characteristics and analysis of synthesized QD and metal nanoparticle.

Organic semiconductor-based optoelectronic devices (solar cells, light-emitting diodes, field effect transistor).

• Development of new device architecture for improving device performance.
• Fabrication of conventional- and inverted-type organic optoelectronic devices.
• Characteristic of conductive polymer (PEDOT:PSS) for using buffer layer and electrode.
• Device optimization of polymer solar cells using various treatments (thermal-, solvent-annealing, additives, etc).
• Enhancement of the devices (solar cells, light-emitting diodes) performance by using dipole moment (conjugated polymer, ionic liquid, self-assembly mono layer).
• Introduction of metal nanocomposites (surface plasma resonance from Ag, Au metal composite) into organic optoelectronic devices for performance improvement by additional light absorption and scattering effect.

Quantum dot optoelectronic device.

• Fabrication of Quantum dot schottky, heterojunction solar cells.
• Inverted quantum dot solar cells by using low temperature ZnO layer.
• Fabrication of hybrid quantum dot –organic (PCBM) solar cells.
• Enhancing performance of quantum dot by inserting ionic liquid moleculse.
• Design of new high performance hybrid quantum-organic (BHJ) solar cells.
• SAMs for high performance of QDSCs (10.7%, record PCE, 2015.12)

Perovskite optoelectronic device.

• Fabrication of perovskite solar cells.
• Fabrication of p-i-n and n-i-p structure.
• Fabrication of perovskite LED based on film and QD form
• Non-toxic perovskite synthesis for PV and LEDs
• Perovskite solar cells PCEs > 24% (certified 25% at Newport 2021.05)
• Perovskite Q.D LEDs RGB

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