Photoactivated organic phosphorescence by stereo-hindrance engineering for mimicking synaptic plasticity
Abstract Purely organic phosphorescent materials with dynamically tunable optical properties and persistent luminescent characteristics enable more novel applications in intelligent optoelectronics. Herein, we reported a concise and universal strategy to achieve photoactivated ultralong phosphoresce...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2023-04-01
|
| Series: | Light: Science & Applications |
| Online Access: | https://doi.org/10.1038/s41377-023-01132-3 |
| _version_ | 1797845753651003392 |
|---|---|
| author | He Wang Yuan Zhang Chifeng Zhou Xiao Wang Huili Ma Jun Yin Huifang Shi Zhongfu An Wei Huang |
| author_facet | He Wang Yuan Zhang Chifeng Zhou Xiao Wang Huili Ma Jun Yin Huifang Shi Zhongfu An Wei Huang |
| author_sort | He Wang |
| collection | DOAJ |
| description | Abstract Purely organic phosphorescent materials with dynamically tunable optical properties and persistent luminescent characteristics enable more novel applications in intelligent optoelectronics. Herein, we reported a concise and universal strategy to achieve photoactivated ultralong phosphorescence at room temperature through stereo-hindrance engineering. Such dynamically photoactivated phosphorescence behavior was ascribed to the suppression of non-radiative transitions and improvement of spin-orbit coupling (SOC) as the variation of the distorted molecular conformation by the synergistic effect of electrostatic repulsion and steric hindrance. This “trainable” phosphorescent behavior was first proposed to mimic biological synaptic plasticity, especially for unique experience-dependent plasticity, by the manipulation of pulse intensity and numbers. This study not only outlines a principle to design newly dynamic phosphorescent materials, but also broadens their utility in intelligent sensors and robotics. |
| first_indexed | 2024-04-09T17:44:01Z |
| format | Article |
| id | doaj.art-863b9b58be364549aee884602a718ce0 |
| institution | Directory Open Access Journal |
| issn | 2047-7538 |
| language | English |
| last_indexed | 2024-04-09T17:44:01Z |
| publishDate | 2023-04-01 |
| publisher | Nature Publishing Group |
| record_format | Article |
| series | Light: Science & Applications |
| spelling | doaj.art-863b9b58be364549aee884602a718ce02023-04-16T11:25:41ZengNature Publishing GroupLight: Science & Applications2047-75382023-04-0112111010.1038/s41377-023-01132-3Photoactivated organic phosphorescence by stereo-hindrance engineering for mimicking synaptic plasticityHe Wang0Yuan Zhang1Chifeng Zhou2Xiao Wang3Huili Ma4Jun Yin5Huifang Shi6Zhongfu An7Wei Huang8Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), Nanjing Tech UniversityKey Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), Nanjing Tech UniversityKey Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), Nanjing Tech UniversityThe Institute of Flexible Electronics (IFE, Future Technologies), Xiamen UniversityKey Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), Nanjing Tech UniversityDepartment of Applied Physics, The Hong Kong Polytechnic UniversityKey Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), Nanjing Tech UniversityKey Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), Nanjing Tech UniversityKey Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), Nanjing Tech UniversityAbstract Purely organic phosphorescent materials with dynamically tunable optical properties and persistent luminescent characteristics enable more novel applications in intelligent optoelectronics. Herein, we reported a concise and universal strategy to achieve photoactivated ultralong phosphorescence at room temperature through stereo-hindrance engineering. Such dynamically photoactivated phosphorescence behavior was ascribed to the suppression of non-radiative transitions and improvement of spin-orbit coupling (SOC) as the variation of the distorted molecular conformation by the synergistic effect of electrostatic repulsion and steric hindrance. This “trainable” phosphorescent behavior was first proposed to mimic biological synaptic plasticity, especially for unique experience-dependent plasticity, by the manipulation of pulse intensity and numbers. This study not only outlines a principle to design newly dynamic phosphorescent materials, but also broadens their utility in intelligent sensors and robotics.https://doi.org/10.1038/s41377-023-01132-3 |
| spellingShingle | He Wang Yuan Zhang Chifeng Zhou Xiao Wang Huili Ma Jun Yin Huifang Shi Zhongfu An Wei Huang Photoactivated organic phosphorescence by stereo-hindrance engineering for mimicking synaptic plasticity Light: Science & Applications |
| title | Photoactivated organic phosphorescence by stereo-hindrance engineering for mimicking synaptic plasticity |
| title_full | Photoactivated organic phosphorescence by stereo-hindrance engineering for mimicking synaptic plasticity |
| title_fullStr | Photoactivated organic phosphorescence by stereo-hindrance engineering for mimicking synaptic plasticity |
| title_full_unstemmed | Photoactivated organic phosphorescence by stereo-hindrance engineering for mimicking synaptic plasticity |
| title_short | Photoactivated organic phosphorescence by stereo-hindrance engineering for mimicking synaptic plasticity |
| title_sort | photoactivated organic phosphorescence by stereo hindrance engineering for mimicking synaptic plasticity |
| url | https://doi.org/10.1038/s41377-023-01132-3 |
| work_keys_str_mv | AT hewang photoactivatedorganicphosphorescencebystereohindranceengineeringformimickingsynapticplasticity AT yuanzhang photoactivatedorganicphosphorescencebystereohindranceengineeringformimickingsynapticplasticity AT chifengzhou photoactivatedorganicphosphorescencebystereohindranceengineeringformimickingsynapticplasticity AT xiaowang photoactivatedorganicphosphorescencebystereohindranceengineeringformimickingsynapticplasticity AT huilima photoactivatedorganicphosphorescencebystereohindranceengineeringformimickingsynapticplasticity AT junyin photoactivatedorganicphosphorescencebystereohindranceengineeringformimickingsynapticplasticity AT huifangshi photoactivatedorganicphosphorescencebystereohindranceengineeringformimickingsynapticplasticity AT zhongfuan photoactivatedorganicphosphorescencebystereohindranceengineeringformimickingsynapticplasticity AT weihuang photoactivatedorganicphosphorescencebystereohindranceengineeringformimickingsynapticplasticity |