Volume 13

Issue 12,2020

(37 articles)


Zhen Han§, Xueli Zhao§, Peng Peng, Si Li, Chong Zhang, Man Cao, Kai Li, Zhao-Yang Wang (✉), and Shuang-Quan Zang (✉)

Inter-cluster Au–Au interactions drove the aggregation of chiral gold clusters and produced circularly polarized luminescence with photoluminescence quantum yield of 41.4% and dissymmetry factor |gPL| of 7.0 × 10–3,enabling the fabrication of the first pair of circularly polarized organic light-emitting diodes (OLEDs).
2020, 13(12): 3248–3252
Published: 25 August 2020

Yafeng Hao1,§, Taofeng Du2,§, Gaoju Pang1, Jiahua Li1, Huizhuo Pan1, Yingying Zhang1, Lizhen Wang2, Jin Chang1, En-min Zhou2 (✉), and Hanjie Wang1 (✉)

Upconversion optogenetic nanosystem spatiotemporally regulates ubiquitin-mediated target protein degradation.
2020, 13(12): 3253–3260
Published: 14 August 2020

Shenghui Han1, Gang Lian1 (✉), Xiaoliang Zeng2, Zhaozhen Cao3, Qilong Wang3, Deliang Cui1, and Ching-Ping Wong4 (✉)

Water-soluble boron carbon oxynitride (BCNO) dots, displaying superior blue fluorescence and ultralong green room temperature phosphorescence (> 1.5 s), were first synthesized by a one-step microwave approach. Its potential applications, as a novel advanced security ink, in anti-counterfeiting, information encryption and fluorescent staining are demonstrated.
2020, 13(12): 3261–3267
Published: 22 August 2020

Tao Chen, Lichao Su, Xiaoguang Ge, Wenmin Zhang, Qingqing Li, Xuan Zhang, Jiamin Ye, Lisen Lin, Jibin Song (✉), and Huanghao Yang (✉)

In summary, we reported a novel plasmonic-fluorescent hybrid nanogapped gold nanorod (AuNNR)-down-conversion nanoparticles (DCNP) vesicle with pH responsive bimodal second near-infrared window (NIR-II) photoacoustic/fluorescence (PA/FL) imaging performances for guiding cancer chemo-radiotherapy. In an acidic environment, the vesicles were disassembled into single AuNNR and DCNP, leading to localized DOX release and responsive variation of NIR-II PA and FL signals. The hybrid vesicle served as a smart theranostic agent for accurate cancer chemo-raditherapy-guided by dual NIR-II PA and FL imaging.
2020, 13(12): 3268–3277
Published: 14 August 2020

Changyong Lan1,2, Xiaolin Kang3, You Meng3, Renjie Wei3, Xiuming Bu3, SenPo Yip3,4, and Johnny C. Ho3,4,5 (✉)

The origin of gate bias stress instability and hysteresis in monolayer WS2 transistors are carefully investigated, where charge trapping is identified to induce the time decay characteristic of output current, contributing to the instability and hysteresis phenomena. A rate equation, considering the time decay effect, is proposed and developed to model the bias stress instability and hysteresis with excellent consistency with experimental results, validating the model and providing the further insights for charge trapping induced effects for transistors.
2020, 13(12): 3278–3285
Published: 05 September 2020

Hui Chen1,2,§, De-Liang Bao1,2,§, Dongfei Wang1,2, Yande Que1, Wende Xiao1, Yu-Yang Zhang1,2, Jiatao Sun1,2, Shixuan Du1,2 (✉), and Hong-Jun Gao1,2 (✉)

Controlling the atomic configurations of structural defects in graphene nanostructures is crucial for achieving desired functionalities. Here, we report the controlled fabrication and manipulation of nanosized graphene homojunction with 5-7-5-7 GBs.
2020, 13(12): 3286–3291
Published: 04 September 2020

Pengkun Wei1, Zewei Hao1, Yang Yang1, Mingyang Liu1,2 (✉), Haijun Zhang3 (✉), Min-Rui Gao4 (✉), and Shu-Hong Yu4 (✉)

A new kind of hollow NiSe2/reduced graphene oxide (RGO) composite catalyst with unconventional dual Ni-Se vacancies can be prepared by annealing Ni0.85Se/RGO at 400 and 450 °C under an inert atmosphere, which exhibits excellent activity and stability for catalyzing the oxygen evolution reaction.
2020, 13(12): 3292–3298
Published: 22 August 2020

Tengyi Liu and Peng Diao (✉)

Nickel foam supported Cr-doped NiCo2O4/FeOOH nanoneedle arrays act as a highly efficient bifunctional electrocatalyst for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The high activity mainly originates from Cr-doping, which greatly improves the conductivity of nanoneedles and enables the non-connected active sites to be electrochemically accessible.
2020, 13(12): 3299–3309
Published: 15 August 2020

Enbo Zhu1,2,§, Wang Xue3,§, Shiyi Wang4,§, Xucheng Yan1, Jingxuan Zhou1, Yang Liu1, Jin Cai1, Ershuai Liu5, Qingying Jia5, Xiangfeng Duan3,6, Yujing Li2, Hendrik Heinz4 (✉), and Yu Huang1,6 (✉)

Increasing grain boundary density remarkably enhances oxygen reduction reaction (ORR) activity by favoring the residence of oxygen on the Pt catalyst surface.
2020, 13(12): 3310–3314
Published: 13 August 2020

Wenlong Cai1, Yingze Song2 (✉), Yuting Fang1, Weiwei Wang1, Songlin Yu2, Huaisheng Ao1, Yongchun Zhu1 (✉), and Yitai Qian1

The as-devised defect-rich carbon black by rationally regulated defect engineering can serve as an active electrocatalyst to enable the polysulfide conversion and thus boost the electrochemical performances of Li–S batteries.
2020, 13(12): 3315–3320
Published: 02 September 2020