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DOI | 10.1038/s41467-019-11394-4 |
Color-selective photodetection from intermediate colloidal quantum dots buried in amorphous-oxide semiconductors | |
Cho, Kyung-Sang1,2; Heo, Keun2,3; Baik, Chan-Wook2; Choi, Jun Young3; Jeong, Heejeong1,5,6; Hwang, Sungwoo1,2; Lee, Sang Yeol4 | |
2019-08-15 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea; Peoples R China |
英文摘要 | We report color-selective photodetection from intermediate, monolayered, quantum dots buried in between amorphous-oxide semiconductors. The proposed active channel in phototransistors is a hybrid configuration of oxide-quantum dot-oxide layers, where the gate-tunable electrical property of silicon-doped, indium-zinc-oxide layers is incorporated with the color-selective properties of quantum dots. A remarkably high detectivity (8.1 x 10(13) Jones) is obtained, along with three major findings: fast charge separation in monolayered quantum dots; efficient charge transport through high-mobility oxide layers (20 cm(2) V-1 s(-1)); and gate-tunable drain-current modulation. Particularly, the fast charge separation rate of 3.3 ns(-1) measured with time-resolved photoluminescence is attributed to the intermediate quantum dots buried in oxide layers. These results facilitate the realization of efficient color-selective detection exhibiting a photoconductive gain of 10(7), obtained using a room-temperature deposition of oxide layers and a solution process of quantum dots. This work offers promising opportunities in emerging applications for color detection with sensitivity, transparency, and flexibility. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000412603700003 |
WOS关键词 | TRANSPORT ; FILMS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204497 |
专题 | 资源环境科学 |
作者单位 | 1.Samsung Adv Inst Technol, Device Lab, Suwon 16678, South Korea; 2.Samsung Adv Inst Technol, Res Ctr Time Domain Nanofunct Device, Suwon 16678, South Korea; 3.Korea Univ, Sch Elect Engn, Seoul 02841, South Korea; 4.Cheongju Univ, Dept Semicond Engn, Cheongju 28503, South Korea; 5.Hong Kong Univ Sci & Technol, Dept Phys, Clear Water Bay, Hong Kong, Peoples R China; 6.Hong Kong Univ Sci & Technol, Inst Adv Study, Clear Water Bay, Hong Kong, Peoples R China |
推荐引用方式 GB/T 7714 | Cho, Kyung-Sang,Heo, Keun,Baik, Chan-Wook,et al. Color-selective photodetection from intermediate colloidal quantum dots buried in amorphous-oxide semiconductors[J]. NATURE COMMUNICATIONS,2019,8. |
APA | Cho, Kyung-Sang.,Heo, Keun.,Baik, Chan-Wook.,Choi, Jun Young.,Jeong, Heejeong.,...&Lee, Sang Yeol.(2019).Color-selective photodetection from intermediate colloidal quantum dots buried in amorphous-oxide semiconductors.NATURE COMMUNICATIONS,8. |
MLA | Cho, Kyung-Sang,et al."Color-selective photodetection from intermediate colloidal quantum dots buried in amorphous-oxide semiconductors".NATURE COMMUNICATIONS 8(2019). |
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