Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou 350004, China.
State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
Chem Commun (Camb). 2022 May 24;58(42):6219-6222. doi: 10.1039/d2cc00291d.
The high performance of the photoelectrochemical (PEC) properties of AuNCs can be achieved with 6-aza-2-thio-thymine-AuNCs (ATT-AuNCs) as a photoactive material. The ATT-AuNCs yielded a cathodic photocurrent density as high as 88 μA cm with O as electron acceptor, which is three orders of magnitude higher than those of other AuNCs in aqueous solutions. Moreover, ATT-AuNCs also show a higher carrier density, shorter Debye length, and smaller depletion layer width than those of reported AuNCs. This work not only reveals the PEC performance and mechanism of ATT-AuNCs, but also establishes a framework for in-depth design and studying the PEC performance of AuNCs.
金纳米簇（AuNCs）具有高光电流密度，其光电化学（PEC）性能优异，可用 6-氮杂-2-硫代胸腺嘧啶修饰的金纳米簇（ATT-AuNCs）作为光活性材料来实现。ATT-AuNCs 在以 O2 作为电子受体时，产生的阴极光电流密度高达 88 μA cm-2，比其他在水溶液中的 AuNCs 高三个数量级。此外，ATT-AuNCs 的载流子密度、德拜长度和耗尽层宽度也均小于已报道的 AuNCs。本工作不仅揭示了 ATT-AuNCs 的 PEC 性能和机制，而且为深入设计和研究 AuNCs 的 PEC 性能建立了框架。
