Abstract
Recently, single-walled carbon nanotube (SWNT) films have been regarded as a promising channel material for flexible photodetectors due to their high intrinsic carrier mobility, conductivity, and mechanical flexibility. However, the application of SWNTs in photonic devices is limited due to their weak light absorption and the absence of a gain mechanism. Here, we demonstrate a high-performance flexible photodetector that consists of a reticulated SWNT film covered with a thin film of CsPbI3 perovskite colloidal quantum dots. The unique hierarchical reticulated structure of the SWNTs provides such films with extremely high tensile strength and great extensibility, which can ensure the appropriate toughness for achieving flexible photodetectors. Meanwhile, the perovskite quantum dots enhance light absorption, thereby sensitizing the creation of free electrical carriers within the SWNTs. This hybrid photodetector exhibits an extended photonic response and gain compared with the original pure SWNT devices. In addition, the device exhibits good robustness against repetitive bending and stretching, suggesting its applicability as a large-area wearable flexible photodetector.
| Original language | English |
|---|---|
| Pages (from-to) | 8020-8026 |
| Number of pages | 7 |
| Journal | Nanoscale |
| Volume | 11 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 28 Apr 2019 |
Cite this
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Flexible photodetectors based on reticulated SWNT/perovskite quantum dot heterostructures with ultrahigh durability. / Zheng, Jialu; Luo, Chengzhi; Shabbir, Babar; Wang, Chujie; Mao, Wenxin; Zhang, Yupeng; Huang, Yamin; Dong, Yemin; Jasieniak, Jacek J.; Pan, Chunxu; Bao, Qiaoliang.
In: Nanoscale, Vol. 11, No. 16, 28.04.2019, p. 8020-8026.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Flexible photodetectors based on reticulated SWNT/perovskite quantum dot heterostructures with ultrahigh durability
AU - Zheng, Jialu
AU - Luo, Chengzhi
AU - Shabbir, Babar
AU - Wang, Chujie
AU - Mao, Wenxin
AU - Zhang, Yupeng
AU - Huang, Yamin
AU - Dong, Yemin
AU - Jasieniak, Jacek J.
AU - Pan, Chunxu
AU - Bao, Qiaoliang
PY - 2019/4/28
Y1 - 2019/4/28
N2 - Recently, single-walled carbon nanotube (SWNT) films have been regarded as a promising channel material for flexible photodetectors due to their high intrinsic carrier mobility, conductivity, and mechanical flexibility. However, the application of SWNTs in photonic devices is limited due to their weak light absorption and the absence of a gain mechanism. Here, we demonstrate a high-performance flexible photodetector that consists of a reticulated SWNT film covered with a thin film of CsPbI3 perovskite colloidal quantum dots. The unique hierarchical reticulated structure of the SWNTs provides such films with extremely high tensile strength and great extensibility, which can ensure the appropriate toughness for achieving flexible photodetectors. Meanwhile, the perovskite quantum dots enhance light absorption, thereby sensitizing the creation of free electrical carriers within the SWNTs. This hybrid photodetector exhibits an extended photonic response and gain compared with the original pure SWNT devices. In addition, the device exhibits good robustness against repetitive bending and stretching, suggesting its applicability as a large-area wearable flexible photodetector.
AB - Recently, single-walled carbon nanotube (SWNT) films have been regarded as a promising channel material for flexible photodetectors due to their high intrinsic carrier mobility, conductivity, and mechanical flexibility. However, the application of SWNTs in photonic devices is limited due to their weak light absorption and the absence of a gain mechanism. Here, we demonstrate a high-performance flexible photodetector that consists of a reticulated SWNT film covered with a thin film of CsPbI3 perovskite colloidal quantum dots. The unique hierarchical reticulated structure of the SWNTs provides such films with extremely high tensile strength and great extensibility, which can ensure the appropriate toughness for achieving flexible photodetectors. Meanwhile, the perovskite quantum dots enhance light absorption, thereby sensitizing the creation of free electrical carriers within the SWNTs. This hybrid photodetector exhibits an extended photonic response and gain compared with the original pure SWNT devices. In addition, the device exhibits good robustness against repetitive bending and stretching, suggesting its applicability as a large-area wearable flexible photodetector.
UR - http://www.scopus.com/inward/record.url?scp=85065106814&partnerID=8YFLogxK
U2 - 10.1039/c8nr08026g
DO - 10.1039/c8nr08026g
M3 - Article
VL - 11
SP - 8020
EP - 8026
JO - Nanoscale
JF - Nanoscale
SN - 2040-3364
IS - 16
ER -