Panetta Riccardo, Quaranta Simone, Latini Alessandro
Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro, 5, 00185 Roma, Italy.
Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni, Università degli Studi di Roma "La Sapienza", Via Eudossiana, 18, 00184 Roma, Italy.
Materials (Basel). 2018 Jul 11;11(7):1189. doi: 10.3390/ma11071189.
A new and simple procedure for the deposition of lead (II, IV) oxide films by screen printing was developed. In contrast to conventional electrochemical methods, films can be also deposited on non-conductive substrates without any specific dimensional restriction, being the only requirement the thermal stability of the substrate in air up to 500 °C to allow for the calcination of the screen printing paste and sintering of the film. In this study, films were exploited for the preparation of both photoresponsive devices and photoelectrochemical cell photoanodes. In both cases, screen printing was performed on FTO (Fluorine-Tin Oxide glass) substrates. The photoresponsive devices were tested with I-V curves in dark and under simulated solar light with different irradiation levels. Responses were evaluated at different voltage biases and under light pulses of different durations. Photoelectrochemical cells were tested by current density⁻voltage (J-V) curves under air mass (AM) 1.5 G illumination, incident photon-to-current efficiency (IPCE) measurements, and electrochemical impedance spectroscopy.
开发了一种通过丝网印刷沉积铅(II,IV)氧化物薄膜的新颖且简单的方法。与传统的电化学方法不同,薄膜也可以沉积在非导电基板上,且没有任何特定的尺寸限制,唯一的要求是基板在高达500°C的空气中具有热稳定性,以允许丝网印刷浆料的煅烧和薄膜的烧结。在本研究中,薄膜被用于制备光响应器件和光电化学电池光阳极。在这两种情况下,均在FTO(氟锡氧化物玻璃)基板上进行丝网印刷。光响应器件在黑暗中和不同辐照水平的模拟太阳光下通过I-V曲线进行测试。在不同的电压偏置和不同持续时间的光脉冲下评估响应。光电化学电池在空气质量(AM)1.5 G光照下通过电流密度-电压(J-V)曲线、入射光子到电流效率(IPCE)测量和电化学阻抗谱进行测试。