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π‐Conjugated polyelectrolytes (CPEs) have been studied as interlayers on top of a separate hole transport layer (HTL) to improve the wetting, interfacial defect passivation, and crystal growth of perovskites. However, very few CPE‐based HTLs have been reported without rational molecular design as ideal HTLs for perovskite solar cells (PeSCs). In this study, the authors synthesize a triphenylamine‐based...
Integration of photovoltaic (PV) and electroluminescent (EL) functions and/or units in one device is attractive for new generation optoelectronic devices but it is challenging to achieve highly comprehensive efficiency. Herein, perovskite solar cells (PSCs) are fabricated, assisted by 3‐sulfopropyl methacrylate potassium salt (SPM) additive to tackle this issue. SPMs not only induce large grain size...
Herein, a BiOCl hydrogel film electrode featuring excellent photocorrosion and regeneration properties acts as the anode to construct a novel type of smart solar–metal–air batteries (SMABs), which combines the characteristics of solar cells (direct photovoltaic conversion) and metal–air batteries (electric energy storage and release interacting with atmosphere). The cyclic photocorrosion processes...
The interface architectures of inorganic–organic halide perovskite‐based devices play key roles in achieving high performances with these devices. Indeed, the perovskite layer is essential for synergistic interactions with the other practical modules of these devices, such as the hole‐/electron‐transfer layers. In this work, a heterostructure geometry comprising transition‐metal dichalcogenides (TMDs)...
Despite the excellent optoelectronic properties, organic‐inorganic hybrid perovskite solar cells (PSCs) still present significant challenges in terms of ambient stability. CsPbI2Br, a member of all‐inorganic perovskites, may respond to this challenge because of its inherent high stability against light, moisture, and heat, and therefore has gained tremendous attraction recently. However, the practical...
As an emerging solar energy utilization technology, solar redox batteries (SPRBs) combine the superior advantages of photoelectrochemical (PEC) devices and redox batteries and are considered as alternative candidates for large‐scale solar energy capture, conversion, and storage. In this review, a systematic summary from three aspects, including: dye sensitizers, PEC properties, and photoelectronic...
The nonradiative charge recombination caused by surface defects and inferior crystalline quality are major roadblocks to further enhancing the performance of CsPbI3−xBrx perovskite solar cells (PSCs). Theoretical calculations indicate that sodium diethyldithiocarbamate (NaDDTC), a popular bacteriostatic benign material, can initiate multiple interactions with the CsPbI3−xBrx perovskite surface to...
Solution processing of Cu(In,Ga)Se2 (CIGS) absorber is a highly promising strategy for a cost‐effective CIGS photovoltaic device. However, the device performance of solution‐processed CIGS solar cells is still hindered by the severe non‐radiative recombination resulting from deep defects and poor crystal quality. Here, a simple and effective precursor film engineering strategy is reported, where Cu‐rich...
Infrared solar cells are regarded as candidates for expanding the solar spectrum of c‐Si cells, and the window electrodes are usually transparent conductive oxide (TCO) such as widely used indium tin oxide material. However, due to the low transmittance of the TCO in the near‐infrared region, most near‐infrared light cannot penetrate the electrode and be absorbed by the active layer. Here, the propose...
Lead selenide (PbSe) colloidal quantum dots (CQDs) are promising candidates for optoelectronic applications. To date, PbSe CQDs capped by halide ligands exhibit improved stability and solar cells using these CQDs as active layers have reported a remarkable power conversion efficiency (PCE) up to 10%. However, PbSe CQDs are more prone to oxidation, requiring delicate control over their processability...
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