Department of Chemical and Materials Engineering , Chang Gung University , Taoyuan 333 , Taiwan.
Department of Orthopaedic Surgery , Chang Gung Memorial Hospital , Keelung Branch, Taoyuan 204 , Taiwan.
ACS Appl Mater Interfaces. 2018 Jul 5;10(26):22130-22142. doi: 10.1021/acsami.8b04849. Epub 2018 Jun 26.
Multicomponent metal sulfide (stannite AgZnSnS) samples were grown onto the conductive metal oxide-coated glass substrates by using the sulfurization of cosputtering silver-zinc-tin precursors. Several [Ag]/[Zn + Sn] and [Zn]/[Sn] ratios were set in the metal precursors to investigate their influences on the crystal phases, microstructures, and physical properties of the stannite AgZnSnS samples. The results of the crystal phases and the compositions of the samples showed that the stannite AgZnSnS phase can be obtained using the two-step sulfurization process, which maintained the silver-zinc-tin precursors at 160 °C for 1 h and then kept them at 450 °C for 30 min under a sulfur/nitrogen atmosphere. N-type stannite AgZnSnS samples with the carrier concentrations of 5.54 × 10 to 9.11 × 10 cm can be obtained. High resistivities of AgZnSnS samples were observed because of the low values of carrier concentration. Increasing the silver content in the sample can improve its photoelectrochemical (PEC) performance because of the decrease in the sample resistivity. The ratio of [Ag]/[Zn + Sn] at 0.8 and the ratio of [Zn]/[Sn] set at 0.90 in the stannite AgZnSnS sample had the highest PEC performance of 0.31 mA·cm, with the potential set at 1.23 V versus the relative hydrogen electrode applied on the sample because of it having the lowest charge-transfer resistance in the electrolyte.
多组分金属硫化物（硫银矿 AgZnSnS）样品通过共溅射银-锌-锡前驱体的硫化作用生长在导电金属氧化物涂覆的玻璃衬底上。在金属前驱体中设置了几个 [Ag]/[Zn + Sn] 和 [Zn]/[Sn] 比，以研究它们对硫银矿 AgZnSnS 样品的晶体相、微观结构和物理性能的影响。样品的晶体相和组成结果表明，通过两步硫化过程可以获得硫银矿 AgZnSnS 相，该过程将银-锌-锡前驱体在 160°C 下保持 1 小时，然后在硫/氮气氛下在 450°C 下保持 30 分钟。可以获得载流子浓度为 5.54×10 到 9.11×10 的 N 型硫银矿 AgZnSnS 样品cm。由于载流子浓度低，观察到硫银矿 AgZnSnS 样品的高电阻率。由于样品电阻率降低，增加样品中的银含量可以提高其光电化学（PEC）性能。在硫银矿 AgZnSnS 样品中，[Ag]/[Zn + Sn] 的比值为 0.8，[Zn]/[Sn] 的比值为 0.90，其 PEC 性能最高，为 0.31 mA·cm，施加在样品上的电位为 1.23 V 相对于相对氢电极，因为它在电解质中具有最低的电荷转移电阻。
