| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
[디스플레이] 미래 디스플레이용 전자 재료 및 소자 |
| 제목 |
Long-term stable perovskite light-emitting diodes using heterophased perovskite |
| 초록 |
Solution-processed metal halide perovskite films are polycrystalline in nature with an abundance of surface and grain boundaries. These surfaces and grain boundaries inherently contain many defects. Defect-mediated environmental degradation of the material and ion migration have been reported to contribute largely to the operational instability of perovskite-based optoelectronic devices including light-emitting diodes (LEDs) and solar cells.1-3 Mitigation of these detrimental boundaries remains the biggest bottleneck towards commerciallization of the technologies. Here, we present the potential of using hetero-dimensional perovskites to overcome the stability issue in optoelectronic devices. The hetero-dimensional perovskite films show superior optoelectronic properties as well as material stability. The functionalized polycrystalline film renders significantly reduced trap density, environmentally stable and ion migration immune surface of the perovskite grains, simultaneously. |
| 저자 |
한태희 |
| 소속 |
한양대 |
| 키워드 |
metal halide perovskite; light-emitting diodes
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| E-Mail |
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