Improving photoelectrochemical response of ZnO nanowire arrays by coating with p-type ZnO-resembling metal–organic framework

2019 ◽  
Vol 48 (25) ◽  
pp. 9310-9316 ◽  
Author(s):  
Qianqian Gao ◽  
Huihui Kang ◽  
Yun Cai ◽  
Daxiang Xue ◽  
Fengjiao Yu ◽  
...  

Superior photoelectrochemical performance of zinc oxide nanowire arrays is achieved by compactly coating MOF zinc glycolate with p-type conductivity.

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Anna M. Beiler ◽  
Brian D. McCarthy ◽  
Ben A. Johnson ◽  
Sascha Ott

AbstractSurface modification of semiconductors can improve photoelectrochemical performance by promoting efficient interfacial charge transfer. We show that metal-organic frameworks (MOFs) are viable surface coatings for enhancing cathodic photovoltages. Under 1-sun illumination, no photovoltage is observed for p-type Si(111) functionalized with a naphthalene diimide derivative until the monolayer is expanded in three dimensions in a MOF. The surface-grown MOF thin film at Si promotes reduction of the molecular linkers at formal potentials >300 mV positive of their thermodynamic potentials. The photocurrent is governed by charge diffusion through the film, and the MOF film is sufficiently conductive to power reductive transformations. When grown on GaP(100), the reductions of the MOF linkers are shifted anodically by >700 mV compared to those of the same MOF on conductive substrates. This photovoltage, among the highest reported for GaP in photoelectrochemical applications, illustrates the power of MOF films to enhance photocathodic operation.


Nano Letters ◽  
2007 ◽  
Vol 7 (2) ◽  
pp. 323-328 ◽  
Author(s):  
Bin Xiang ◽  
Pengwei Wang ◽  
Xingzheng Zhang ◽  
Shadi. A. Dayeh ◽  
David P. R. Aplin ◽  
...  

2014 ◽  
Vol 29 (2) ◽  
pp. 155-161
Author(s):  
Zhi-Wen QIU ◽  
Xiao-Peng YANG ◽  
Jun HAN ◽  
Xue-Song ZENG ◽  
Xin-Hua LI ◽  
...  

2019 ◽  
Vol 7 (21) ◽  
pp. 6279-6288 ◽  
Author(s):  
Sing Teng Chua ◽  
Kim Yong Lim ◽  
Zheng Zhang ◽  
Chorng Haur Sow

Carbon-incorporated zinc oxide (C-ZnO) nanowire (NW) arrays display controllable optical changes after being selectively annealed by a focused violet laser beam.


Nanoscale ◽  
2017 ◽  
Vol 9 (40) ◽  
pp. 15371-15378 ◽  
Author(s):  
Prashant Sharma ◽  
Hyun Ah Cho ◽  
Jae-Won Lee ◽  
Woo Seung Ham ◽  
Bum Chul Park ◽  
...  

Fan-shaped ZnO nanowire arrays can mediate intracellular delivery of non-covalently associated peptides and DNA.


2020 ◽  
Vol 8 (24) ◽  
pp. 8199-8205
Author(s):  
Zhijun Chen ◽  
Yutao Cui ◽  
Yigang Jin ◽  
Liyao Liu ◽  
Jie Yan ◽  
...  

Ni-PTC, a perthiolated coronene-based conducting MOF displays p-type thermoelectric performance with a ZT value of 0.003 at 300 K.


2014 ◽  
Vol 50 (29) ◽  
pp. 3786-3788 ◽  
Author(s):  
Junkuo Gao ◽  
Jianwei Miao ◽  
Pei-Zhou Li ◽  
Wen Yuan Teng ◽  
Ling Yang ◽  
...  

Photoelectrochemical studies on a new Ti(iv)-based porous metal–organic framework (NTU-9, bandgap 1.72 eV) indicated that NTU-9 is a p-type semiconductor with visible-light-driven photoactivity.


Nano Letters ◽  
2015 ◽  
Vol 16 (1) ◽  
pp. 753-759 ◽  
Author(s):  
Jayce J. Cheng ◽  
Samuel M. Nicaise ◽  
Karl K. Berggren ◽  
Silvija Gradečak

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