Heterojunction

A heterojunction is an interface between two layers or regions of dissimilar semiconductors. These semiconducting materials have unequal band gaps as opposed to a homojunction. It is often advantageous to engineer the electronic energy bands in many solid-state device applications, including semiconductor lasers, solar cells and transistors.

Low-temperature preparation of HTM-free SnO2-based planar

In this paper, SnO 2 ETL, the perovskite CH 3 NH 3 PbI 3 light absorber and carbon electrode were all prepared at low temperatures, and HTM-free planar heterojunction

Efficient planar heterojunction perovskite solar cells by vapour

The use of organometal halide perovskites as the light-absorbing material in nanostructured solar cells has increased efficiency to practical levels; here it is shown that vapour deposition of the

An efficient planar-heterojunction solar cell based on

The planar-heterojunction solar cell shows an optimal power conversion efficiency of 12.67% with negligible current hysteresis due to the film''s large grains and vertically oriented grain boundaries.

Heterojunction

OverviewManufacture and applicationsEnergy band alignmentNanoscale heterojunctionsSee alsoFurther reading

A heterojunction is an interface between two layers or regions of dissimilar semiconductors. These semiconducting materials have unequal band gaps as opposed to a homojunction. It is often advantageous to engineer the electronic energy bands in many solid-state device applications, including semiconductor lasers, solar cells and transistors. The combination of multiple heterojunctions together in a device is called a heterostructure, although the two terms are com

Planar heterojunction perovskite solar cells via vapor-assisted

A low-temperature vapor-assisted solution process is demonstrated to construct polycrystalline perovskite thin films with full surface coverage, small surface roughness, and grain size up to microscale, paving the way for high reproducibility of films and devices. Hybrid organic/inorganic perovskites (e.g., CH3NH3PbI3) as light absorbers are promising players in the field of third

Planar heterojunction

A planar heterojunction is a type of semiconductor junction where two different materials are layered in a flat, two-dimensional arrangement to create a p-n junction. This structure allows for efficient charge separation and transport, making it crucial for devices like organic photovoltaics, where the alignment of energy levels between the

A Mixed‐Pure Planar Heterojunction Structure of Active Layers

Despite significant morphological varies, the DCM-processed devices perform slightly lower PCE of 16.66%, which is the highest value in truly planar heterojunction devices, demonstrating higher morphological tolerance. This work proposes a solvent-regulating method to optimize the vertical structure of active layers through SBC technology, and provides a

Structures of various organic solar cells. (a) Planar heterojunction

Download scientific diagram | Structures of various organic solar cells. (a) Planar heterojunction (PHJ), (b) Bulk heterojunction (BHJ), and (c) ordered heterojunction (OHJ) OPV cell in the

Low-temperature preparation of HTM-free SnO2-based planar

Fig. 1 (A) illustrates the preparation process of the SnO 2-based planar heterojunction PSCs, including a SnO 2 ETL, a perovskite light absorbing layer and a carbon electrode layer: At first, a Fluorine-doped tin oxide (FTO) glass substrate with a size of 2 cm × 2 cm was ultrasonically cleaned by detergent, deionized water, isopropanol, and ethanol

Effect of mobility and band structure of hole transport

In this paper, we investigate perovskite planar heterojunction solar cells using 2D physics-based TCAD simulation. The perovskite cell is modeled as an inorganic material with physics-based parameters. A planar

Recent Advances in Interface Engineering for Planar

In planar heterojunction materials, hole/electron transport layers are introduced between a perovskite film and the anode/cathode. The hole and electron transporting layers are expected to enhance exciton separation,

Recent Advances in Interface Engineering for Planar Heterojunction

In planar heterojunction materials, hole/electron transport layers are introduced between a perovskite film and the anode/cathode. The hole and electron transporting layers are expected to enhance exciton separation, charge transportation and collection.

A New Method for Fitting Current–Voltage Curves of Planar

Herein we propose a new equivalent circuit including double heterojunctions in series to simulate the current–voltage characteristic of P–I–N planar structure perovskite solar cells. This new method can theoretically solve the dilemma of the parameter diode ideal factor being larger than 2 from an ideal single heterojunction equivalent circuit, which usually is in the

An efficient planar-heterojunction solar cell based on wide

The planar-heterojunction solar cell shows an optimal power conversion efficiency of 12.67% with negligible current hysteresis due to the film''s large grains and vertically oriented grain boundaries.

Parallel Planar Heterojunction Strategy Enables Sb2S3 Solar Cells

An easily solution-processed parallel planar heterojunction (PPHJ) strategy boosts the efficiency of Sb 2 S 3 solar cells up to 8.32 %, by integrating the distinctive

Scientists Propose Parallel Planar Heterojunction Strategy for

Their focus on the potential antimony trisulfide (Sb 2 S 3) as a photovoltaic absorber has led to a Parallel Planar Heterojunction (PPHJ) strategy for the preparation of highly efficient solar cells. Their findings have been published in

Planar heterojunction

A planar heterojunction is a type of semiconductor junction where two different materials are layered in a flat, two-dimensional arrangement to create a p-n junction. This structure allows

Effect of mobility and band structure of hole transport layer in planar

A power conversion efficiency of over 15 % has been achieved with a simple planar heterojunction incorporating perovskite as the absorber layer [3, 4]. Efficient carrier transport and collection is vital for the performance of the solar cells. Therefore, the choice of the electrodes [i.e., hole transport material (HTM) and electron

Scientists Propose Parallel Planar Heterojunction Strategy for

Their focus on the potential antimony trisulfide (Sb 2 S 3) as a photovoltaic absorber has led to a Parallel Planar Heterojunction (PPHJ) strategy for the preparation of

Parallel Planar Heterojunction Strategy Enables Sb2S3 Solar Cells

An easily solution-processed parallel planar heterojunction (PPHJ) strategy boosts the efficiency of Sb 2 S 3 solar cells up to 8.32 %, by integrating the distinctive structures of Sb 2 S 3 layer and the duplexity of CH 3 NH 3 PbI 3 layer in charge transportation.

Insight into Evolution, Processing and Performance of Multi-length

The structural characterization correlated to the processing control of hierarchical structure of planar heterojunction perovskite layer is still incomplete due to the limitations of conventional

平行平面异质结策略使 Sb2S3 太阳能电池效率超过

摘要基于无机异质结的溶液处理太阳能电池为地面光伏发电所需的高效、稳定和低成本太阳能电池提供了一种潜在的方法。三硫化锑（sb2s3）是一种很有前途的光伏吸收剂。这里,开发了一种易于溶液加工的平行平面异质结（pphj）策略和相关原理来制备高效的多平面

High-efficiency flexible organic solar cells with a polymer

Organic solar cells (OSCs) are considered as a crucial energy source for flexible and wearable electronics. Pseudo-planar heterojunction (PPHJ) OSCs simplify the solution preparation and morphology control. However, non-halogenated solvent-printed PPHJ often have an undesirable vertical component distribution and insufficient donor/acceptor interfaces.

Preparation and characterization of planar heterojunction

Keywords TiO 2 compact layer MAPbI 3 Planar heterojunction Perovskite solar cell Highlights Figure 1 Diagram of the perovskite film deposited on the TiO 2 c-layer by a modified one-step method. Figure 3a SEM images of a TiO 2 c-layer of 0.1–2T indicates that the TiO 2 c-layer has smooth surface morphology. Figure 11c SEM images prepared with 45wt% mass

Planar heterojunctions for reduced non-radiative open-circuit

Compared to bulk heterojunctions (BHJs) in organic solar cells (OSCs), planar heterojunctions (PHJs) avoid complicated morphology control entirely and morphology disorder caused by physical blending, and show huge potentials to realize less traps and better stability for OSCs. In this study, solution-process Journal of Materials Chemistry C HOT

平行平面异质结策略使 Sb2S3 太阳能电池效率超过

摘要基于无机异质结的溶液处理太阳能电池为地面光伏发电所需的高效、稳定和低成本太阳能电池提供了一种潜在的方法。三硫化锑（sb2s3）是一种很有前途的光伏吸收剂。这里,开发了一种易于溶液加工的平行平面异质结（pphj）策略和相关原理来制备高效的多平面异质结（phj）太阳能电池,并且