Highly Air-Stable Solution-Processed and Low-Temperature Organic/Inorganic Nanostructure Hybrid Solar Cells

Abstract

Silicon nanostructure-based hybrid solar cells have attracted much attention due to their potential advantages of extremely simple device fabrication and the cost-effectiveness of their hybrid structure. These hybrid solar cells open a new research direction in new-generation photovoltaics. However, the performance of hybrid inorganic/organic solar cells tends to deteriorate because of severe problems with long-term stability. These will need to be solved before hybrid solar cells can be used successfully to harvest solar energy. To solve this issue, we describe a new high-performance hybrid Sinanotip/TEDs (zwitterionic tetrathiafulvalene-extended dicarboxylate radicals) solar cell that shows long-term stability. TED is composed of the only singlecomponent molecule without any doping, thus providing long-lasting chemical stability combined with high conductivity. These Si-nanotips/TED hybrid solar cells are markedly more stable than Si/PEDOT:PSS hybrid solar cells, which, unless encapsulated, rapidly degrade under ambient conditions. This new TED material opens a pathway toward a new generation of organic electronics and optoelectronics devices.

Enhanced power conversion efficiency of an n-Si/PEDOT:PSS hybrid solar cell using nanostructured silicon and gold nanoparticles

“…The enhancement could result from the low reflectance of SiNW structures for enhancing the light absorption and to large p/n junction areas for enhancing the carrier collection efficiency. 39–44 Moreover, the increase in the surface roughness of the devices using SiNWs is shown in Fig. 3c.…”

“…The enhancement could result from the low reectance of SiNW structures for enhancing the light absorption and to large p/n junction areas for enhancing the carrier collection efficiency. [39][40][41][42][43][44] Moreover, the increase in the surface roughness of the devices using Table 1 Structure and photovoltaic properties of the hybrid solar cells: short circuit current density (J sc ), open circuit voltage (V oc ), series resistance (R s ), fill factor (FF), and efficiency (PCE)…”

MXene-Based Materials for Solar Cell Applications

“…Organic and inorganic hybrid structures are an effective means due to their cost-effectiveness and extremely simple fabrication process. Subramani et al presented a novel long-term stability organic and inorganic hybrid solar cells [112]. The fabrication process is shown in Figure 9e, wherein a silicon wafer was employed to fabricate Si nanostructures through the etching (immerse in H 2 O 2 and HF for 25 s) process.…”

Spectral Downshifting and Passivation Effects Using 2D Perovskite (OAm)2SnBr4 Films to Enhance the Properties of Si Nanowire Solar Cells

“…17 have been noted as a highly stable conductive polymer alternative to PEDOT:PSS. 18 Transition-metal oxides (TMOs) such as MoO x , V 2 O 5 , CrO 3 , and others of high stability are also used as alternative hole-selective layers. 3,19−23 In photovoltaics, absorber materials such as Si can generally absorb light that has the same or greater band gap energy, promoting the formation of free carriers.…”