Doping of perovskite semiconductors1and passivation of their grain boundaries2remain challenging but essential for advancing high-efficiency perovskite solar cells. Particularly, it is crucial to build perovskite/indium tin oxide (ITO) Schottky contact based inverted devices without predepositing a layer ...
High-quality defect passivation at perovskite/charge extraction layer heterojunctions in perovskite solar cells is critical to solar device operation. Here we report a ‘physical’ passivation method by producing fixed charges with aluminium oxide (negat
Perovskite solar cellImpedance spectroscopyPoly(3,4-ethylenedioxythiophene):poly (styrene sulfonate) (PEDOT:PSS) plays a relevant role in the device performance as hole extraction layer (HTL) of inverted perovskite solar cells. Here, we show a simple low-temperature spin coating method for obtaining...
Nickel oxides have been widely used as hole transport layer (HTL) in inverted perovskite solar cells (IPSCs), although the inherent electric limitations of the pristine NiOx material have driven research on its modifications. In this work, the electrochemical deposition (ECD) of indium-doped NiOx...
In this paper, inverted perovskite solar cells (PSCs) employing a novel polymer゛ssisted small molecule layer as hole transport layer (HTL) are reported and the effect of mixed HTL on the device performance is investigated. It is the first time that the small molecule HTL is doped with a ...
Organometallic halide-perovskite solar cells have undergone massive improvements in power conversion efficiency in the past decade, from around 4% in 2009 to 24% in 2019. A hotly debated issue in this field involves the investigation of economical, stable and power-efficient hole transport materials...
Inverted perovskite solar cells (PSCs) that can be entirely processed at low temperatures have attracted growing attention owing to their cost〆ffective production. Hole‐transport materials (HTMs) play an essential role in achieving efficient inverted PSCs, as they determine the effectiveness of ...
Northwestern University researchers have raised the standards again for perovskite solar cells with a new development that helped the emerging...
Perovskite solar cells with an inverted architecture provide a key pathway for commercializing this emerging photovoltaic technology because of the better power conversion efficiency and operational stability compared with the normal device structure. Specifically, power conversion efficiencies of the inverted ...
The energy landscape of reduced-dimensional perovskites (RDPs) can be tailored by adjusting their layer width (n). Recently, two/three-dimensional (2D/3D) heterostructures containing n = 1 and 2 RDPs have produced perovskite solar cells (PSCs) with