Effect of annealing and surface treatment on the efficiency of photoelectrochemical (PEC) solar cells with vacuum-deposited n-InSe thin film electrode

Effect of Annealing and of Effect of Annealing and of Cooling Rates on n‐GaAs Electrode Photoelectrochemical Characteristics

“…It is reported that thermal annealing plays an important role in the crystallization process of homogeneous ultra thin a-Si : H sublayers [6]. Das et al [9] found that, for thin FIGURE 7 Dark J-V plots of a slowly cooled and b quenched n-GaAs from 800 C. All J-V measurements were conducted in K 2 Se=K 2 Se 2 =KOH at 25 C. n-GaAs ELECTRODE films of n-InSe, surface treatment such as etching and annealing leads to increased efficiency of the PEC solar cell, at a pH value of 6.2. Quality, optical properties and structures of different SC crystals have been improved by annealing [7,8].…”

“…Annealing of SC wafers was reported to enhance their characteristics, such as crystal structure, surface and doping distribution [3][4][5][6][7][8][9]. Slow cooling has also been reported to enhance SC characteristics, vide infra.…”

Effect of cooling rate of pre-annealed CdS thin film electrodes prepared by chemical bath deposition: Enhancement of photoelectrochemical characteristics

“…Thin film characteristic enhancement by annealing is widely reported in literature [1,5,14,[22][23][24][25][26][27][28][29][30]. Different characteristics of thin films, prepared by different techniques including CBD, such as PL spectra, crystallite size, conductivity, PEC characteristics and others were modified by annealing.…”

“…Reports, dealing with effect of cooling rate on different characteristics, of mono-crystalline and thin film materials, such as PL spectra, absorption spectra, crystallite size, conductivity and others are known [27,[32][33][34][35][46][47]. Some reports dealing with PEC characteristics enhancement of SC thin films, prepared by spray pyrolysis, sputtering or chemical vapor techniques, are available [22,25,[48][49][50][51][52]. Despite the widespread studies on CdS films prepared by CDB [1,5,14,[22][23][24][25][26][27][28][29][30], no earlier comprehensive studies, dealing with effect of cooling rate onto PEC characteristics of such CBD-prepared CdS thin films, were performed.…”

“…Some reports dealing with PEC characteristics enhancement of SC thin films, prepared by spray pyrolysis, sputtering or chemical vapor techniques, are available [22,25,[48][49][50][51][52]. Despite the widespread studies on CdS films prepared by CDB [1,5,14,[22][23][24][25][26][27][28][29][30], no earlier comprehensive studies, dealing with effect of cooling rate onto PEC characteristics of such CBD-prepared CdS thin films, were performed. To the best of our knowledge, the effect of cooling rate on both efficiency and stability of such systems under PEC conditions has not been reported.…”