Efficient electron-blocking layer-free planar heterojunction perovskite solar cells with a high open-circuit voltage

Wu, Runsheng; Yang, Junliang; Xiong, Jian; Liu, Peng; Zhou, Conghua; Huang, Han; Gao, Yongli; Yang, Bingchu

doi:10.1016/j.orgel.2015.07.057

Cited by 86 publications

(59 citation statements)

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“…The characteristics of these layers are solutions for an efficient functioning of the perovskite cells. IS has emerged as a powerful and unique technique for investigation of various processes taking place in the PSCs under illumination and in dark and how they are influenced by other layers. Research efforts have been made to demonstrate the use of IS to compare the performance of perovskite optoelectronics …”

Section: Is Characteristics For Photovoltaic Devicesmentioning

confidence: 99%

Impedance Spectroscopy: A Versatile Technique to Understand Solution‐Processed Optoelectronic Devices

Ali

Chang

Imran

et al. 2019

Physica Rapid Research Ltrs

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Solution‐processed optoelectronic devices based on conjugated polymers, colloidal quantum dots (CQDs), halide perovskites, and so on are now emerging as a new‐generation semiconductor technology which prevails its conventional counterparts in terms of low fabrication cost, ease of scalable manufacturing, and abundant material designability. However, the solution‐processed thin films obtained through spin‐coating, spray, inkjet printing, and doctor blading usually suffer from low film quality and a high defect density especially at the interfaces of different functional layers. Currently, the most significant subject is to address the non‐ideal interfaces for achieving improved performance of the devices. Impedance spectroscopy (IS) is a universal technique that can help to examine the charge behavior at the interfaces in an electrochemical or solid‐state multilayered device. Owing to its ability to elucidate the charge transfer, charge transport, and accumulation within the interfaces of electrochemical or multilayered devices with minimal effects to the devices themselves, the use of IS has increased vividly in the last decades. This review provides the basic principles of IS and its applications on solution‐processed optoelectronic devices.

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Section: Is Characteristics For Photovoltaic Devicesmentioning

confidence: 99%

Impedance Spectroscopy: A Versatile Technique to Understand Solution‐Processed Optoelectronic Devices

Ali

Chang

Imran

et al. 2019

Physica Rapid Research Ltrs

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“…It can be seen that all perovskite layers exhibit a broad range of optical absorption with from 280 to 440 nm. According to the previous works [7], [8], the absorbance spectra of CH3NH3PbI3 perovskite layer has a sharp increase on the right edge of the curve at a wavelength (cut off wavelength) of about 780-800 nm. This wavelength is attributed to the band gap value of CH3NH3PbI3 perovskite of about 1.55 eV.…”

Section: Characterizationmentioning

confidence: 66%

The Influence of CH3NH3I/ Pbi2 Ratio on The Absorption and Electrical Characteristics of Perovskite/Polymer Solar Cell

Shobih

Rosa

Lestari

2017

IJPS

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In this paper, we report a simple solution processed perovskite/polymer solar cell using CH3NH3PbI3 as an absorber, PCBM (6,6 phenyl C61-butyric acid methyl ester) as an electron transport layer, and PEDOT:PSS (poly (3,4-ethylene dioxy thiophene):poly(styrene sulfonate)) as a hole transport layer. The absorber solution was prepared by mixing of CH3NH3I (methyl ammonium iodide) with PbI2 (lead iodide) in DMF (dimethyl formamide) solvent. The absorber, electron transport, and hole transport layers are deposited by spin coating of the solutions. In order to obtain the optimum optical and electrical characteristics, the mixture of CH3NH3I and PbI2 are varied by the molar ratio of 1:1, 1:3, and 3:1, respectively. Because of CH3NH3PbI3 layer degrades, the fabricated cells have low performance. However, the cell using a molar ratio of 1:1 CH3NH3I and PbI2 gives the best electrical characteristics, results in an open circuit voltage of 0.04 V, a short circuit current density of 0.08 mA/cm 2 , and a power conversion efficiency of 0.002 %.Keywords: perovskite solar cell, CH3NH3PbI3, CH3NH3I, PbI2, PCBM, PEDOT/PSS ABSTRAK Di dalam tulisan ini kami melaporkan proses pembuatan sel surya berbasis perovskite/polimer yang diproses dalam bentuk larutan. Sel surya perovskite/polimer menggunakan CH3NH3PbI3 sebagai lapisan penyerap cahaya, PCBM (6,6 phenyl C61-butyric acid methyl ester) sebagai lapisan transport elektron, dan PEDOT:PSS (poly (3,4-ethylene dioxy thiophene):poly(styrene sulfonate)) sebagai lapisan transport hole. Larutan penyerap cahaya dibuat dengan mencampurkan CH3NH3I (metil amonium iodida) dan PbI2 (timbal iodida) dengan pelarut DMF (dimetil formamida). Lapisan-lapisan penyerap cahaya, transport elektron, dan transport hole dibuat dengan cara mendeposikan larutan-larutan tersebut menggunakan metoda spin coating. Untuk mendapatkan karakteristik listrik dan optik yang optimum campuran CH3NH3I dan PbI2 divariasikan dengan perbandingan molar masing-masing 1:1, 1:3, dan 3:1. Karena lapisan lapisan perovskite CH3NH3PbI3 mengalami degradasi, sel yang dibuat mempunyai perfomansi rendah. Namun demikian, sel yang menggunakan perbandingan molar CH3NH3I dan PbI2 1:1 memberikan karakteristik listrik yang paling baik, dengan tegangan sirkit terbuka sebesar 0,04 V, densitas arus sirkit pendek sebesar 0,08 mA/cm 2 , dan efisiensi konversi energi sebesar 0,002 %.Kata Kunci: sel surya perovskite, CH3NH3PbI3, CH3NH3I, PbI2, PCBM, PEDOT:PSS 12 Shobih, et. al.,

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“…6), researchers are still looking for more simple structure to fabricate efficient PHJ-PSCs, for example, HTL-free PHJ-PSCs or ETL-free PHJ-PSCs [38,69], which can further simplify the fabrication of large-area PSCs with large-scale printing techniques.…”

Section: Htl-free Planar Heterojunction Pscsmentioning

confidence: 99%

“…The ITO electrode would be eroded as well resulted from extreme acidity characteristic, and the water-absorbing would contribute to the rapidly degradation of active layer leading to the quickly damping for overall PSC devices. Thus, the HTL-free PHJ-PSCs with a structure of ITO/CH3NH3PbI3/PCBM/Al were explored [38]. The CH3NH3PbI3 thin films deposited on the ITO and ITO/PEDOT:PSS substrates showed the similar properties (Fig.…”

Section: Htl-free Planar Heterojunction Pscsmentioning

confidence: 99%

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Interface modification for organic and perovskite solar cells

Wang

Yang

2016

Sci. China Mater.

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Organic solar cells (OSCs) continuously attract much attention due to their potentials as the low-cost and lightweight sources of renewable energy, and the power conversion efficiency (PCE) of the state-of-the-art OSCs has reached over 10.0%. Especially, there has been an unexpected breakthrough and rapid evolution of highly efficient organic-inorganic hybrid perovskite solar cells (PSCs), and the PCE has been improved to over 20%. The interface plays a very important role on the performance of both OSCs and PSCs, as well as their stability. It is imperative to control the interface properties and understand the mechanisms for obtaining highly efficient OSCs and PSCs. In this review, we will summarize our research progress on the interface modification of OSCs and PSCs using the electron transport layer and hole transport layer, as well as the molecular template layer.

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Efficient electron-blocking layer-free planar heterojunction perovskite solar cells with a high open-circuit voltage

Cited by 86 publications

References 50 publications

Impedance Spectroscopy: A Versatile Technique to Understand Solution‐Processed Optoelectronic Devices

Impedance Spectroscopy: A Versatile Technique to Understand Solution‐Processed Optoelectronic Devices

The Influence of CH3NH3I/ Pbi2 Ratio on The Absorption and Electrical Characteristics of Perovskite/Polymer Solar Cell

Interface modification for organic and perovskite solar cells

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