Ligand‐Engineered Quantum Dots Decorated Heterojunction Photoelectrodes for Self‐Biased Solar Water Splitting

Abstract

Statistical Analysis: PL lifetime values were fitted by tri-exponential decay fitting models with Origin, giving R-Square > 0.95, and standard error < 0.02 for the obtained results.

Bio-inspired artificial synaptic transistors: evolution from innovative basic units to system integration

“…8 In addition, inorganic semiconductors possess a higher carrier mobility and can be applied to high-frequency electronic circuits, 56 while quantum dots and heterojunctions have higher sensitivity to light and are suitable for optical synaptic systems. 57,58 Additionally, some biocompatible synaptic devices especially the organic transistors can be degraded without any pollution and toxicity, which further facilitates the convergence of biotechnology and electronics in recording potential information from neurons. 59,60 Until now, major biological synaptic functions such as excitatory/inhibitory postsynaptic current (EPSC/IPSC), short/ long term plasticity (STP/LTP) and paired pulse facilitation (PPF) have been widely simulated by controlling presynaptic stimulation.…”

Quantum Dots, Passivation Layer and Cocatalysts for Enhanced Photoelectrochemical Hydrogen Production

“…Cai et al reported shortchain-length monodentate 1-dodecanethiol ligands for Zndoped CuInS 2 (ZCIS) QDs by suppressing charge recombination. [55] Park and Park compared oleic acid (OA)treated CdSe and 1,2-ethanedithiol (EDT)-treated CdSe by the ligand-exchange method. OA is a longer ligand than EDT.…”

Process Accumulated 8% Efficient Cu2ZnSnS4‐BiVO4 Tandem Cell for Solar Hydrogen Evolution with the Dynamic Balance of Solar Energy Storage and Conversion

“…(2018) [24] RuOx-TiO [25] Perovskite/Field's metal-Pt 8.5 0.8 −12 (0 V RHE ); NR; 7 (75%) BiVO 4 -Perovskite 0.35% 18 h(71%) NR Andrei et al (2018) [28] Pt-TiO 2 /CdS/Sb 2 Se 3 1.0 0.5 −20 (0 V RHE ); 3.4%; NR BiVO 4 -Sb 2 Se 3 1.5%; 10 h (90%) NR Yang et al (2020) [26] FTO/WO [17] Pt-C 60 pat-TiO 2 ball/GeSe [30] Pt-TiO 2 /CdS/Cu 3 BiS 3 6.5 0.9 −7 (0 V RHE ); 1.7%; 10 h (90%) BiVO 4 -Cu 3 BiS 3 2.04%; 20 h (90%) NR Huang et al (202)1 [31] FeCoO x /BiVO 4 [21] Mo-BiVO 4 [52] Si/p-GaN/InGaN 8.0 NR NR NR NR 1.9%; NR Guan et al (2018) [53] COP-TF@CNi 2 P 1…”

“…[ 6 , 7 , 8 , 9 , 10 , 11 ] Some photosensitivity semiconductor materials, such as Si, BiVO 4 , TiO 2 , GaN, Cu(In,Ga)Se 2 , CdTe, GaAs, Sb 2 Se 3 , and so on, have been applied to PEC water splitting and showed remarkable hydrogen evolution performance. [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ] Nevertheless, limited by the complex process and expensive raw materials of refining silicon, the rarity of indium in Cu(In,Ga)Se 2 , and the toxicity of cadmium in CdTe, researchers are looking for new low‐cost and environmentally friendly semiconductor materials to substitute for materials such as Si, Cu(In,Ga)Se 2 , and CdTe. [ 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ] Fortunately, the low‐cost, environmentally friendly, and earth‐abundant kesterite Cu 2 ZnSnS 4 (CZTS) with an appropriate band gap (1.45 eV) and excellent light harvesting properties meets our needs for PEC solar water splitting.…”