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Water Passivation of Perovskite Nanocrystals Enables Air-Stable Intrinsically Stretchable Color-Conversion Layers for Stretchable Displays.
Zhou, Huanyu; Park, Jinwoo; Lee, Yeongjun; Park, Jae-Man; Kim, Jin-Hoon; Kim, Joo Sung; Lee, Hyeon-Dong; Jo, Seung Hyeon; Cai, Xue; Li, Lizhu; Sheng, Xing; Yun, Hyung Joong; Park, Jin-Woo; Sun, Jeong-Yun; Lee, Tae-Woo.
Afiliação
  • Zhou H; Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
  • Park J; Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
  • Lee Y; Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
  • Park JM; Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
  • Kim JH; Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
  • Kim JS; Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
  • Lee HD; Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
  • Jo SH; Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
  • Cai X; Department of Electronic Engineering, Tsinghua University, Beijing, 100084, China.
  • Li L; Department of Electronic Engineering, Tsinghua University, Beijing, 100084, China.
  • Sheng X; Department of Electronic Engineering, Tsinghua University, Beijing, 100084, China.
  • Yun HJ; Advanced Nano Research Group, Korea Basic Science Institute (KBSI), Daejeon, 34126, Republic of Korea.
  • Park JW; Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
  • Sun JY; Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
  • Lee TW; Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
Adv Mater ; 32(37): e2001989, 2020 Sep.
Article em En | MEDLINE | ID: mdl-32715525
Conventional organic light-emitting devices without an encapsulation layer are susceptible to degradation when exposed to air, so realization of air-stable intrinsically-stretchable display is a great challenge because the protection of the devices against penetration of moisture and oxygen is even more difficult under stretching. An air-stable intrinsically-stretchable display that is composed of an intrinsically-stretchable electroluminescent device (SELD) integrated with a stretchable color-conversion layer (SCCL) that contains perovskite nanocrystals (PeNCs) is proposed. PeNCs normally decay when exposed to air, but they become resistant to this decay when dispersed in a stretchable elastomer matrix; this change is a result of a compatibility between capping ligands and the elastomer matrix. Counterintuitively, the moisture can efficiently passivate surface defects of PeNCs, to yield significant increases in both photoluminescence intensity and lifetime. A display that can be stretched up to 180% is demonstrated; it is composed of an air-stable SCCL that down-converts the SELD's blue emission and reemits it as green. The work elucidates the basis of moisture-assisted surface passivation of PeNCs and provides a promising strategy to improve the quantum efficiency of PeNCs with the aid of moisture, which allows PeNCs to be applied for air-stable stretchable displays.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Adv Mater Assunto da revista: BIOFISICA / QUIMICA Ano de publicação: 2020 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Adv Mater Assunto da revista: BIOFISICA / QUIMICA Ano de publicação: 2020 Tipo de documento: Article