Effects of the additives <i>n</i>-propylammonium or <i>n</i>-butylammonium iodide on the performance of perovskite solar cells

Hsieh, Cheng Ming; Yu, Yen Lin; Chen, Chih‐Ping; Chuang, Shih‐Ching

doi:10.1039/c7ra11286f

Cited by 15 publications

(8 citation statements)

References 54 publications

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“…As a comparison, the common LD used, nbutylammonium lead iodide, has a tolerance factor of 1.001. 16 In this study, to mix the perovskites, the precursor solutions of two different types of perovskites (for instance, MAPI and tBAPI), were mixed in 3 different ratios: 75%:25%, 50%:50%, and 25%:75%. Thin films were prepared following standard approaches.…”

Section: = ( + ) √2( + )mentioning

confidence: 99%

The effect of structural dimensionality on carrier mobility in lead-halide perovskites

et al. 2019

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Section: = ( + ) √2( + )mentioning

confidence: 99%

The effect of structural dimensionality on carrier mobility in lead-halide perovskites

et al. 2019

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“…[12][13][14] The incorporation of additive has been recognized as an efficient methodology to increase the performance of PSCs. [15][16][17][18] Previous reports have demonstrated that incorporating diiodooctane (DIO), NH 4 Cl 19,20 and alkylammonium iodides 11,21 can increase the performance of PSC devices. Furthermore, the inserting of bulky cations can induce formation of 2D perovskites, which has been shown to improve the stability of PSCs.…”

Section: Introductionmentioning

confidence: 99%

Low-temperature, simple and efficient preparation of perovskite solar cells using Lewis bases urea and thiourea as additives: stimulating large grain growth and providing a PCE up to 18.8%

et al. 2018

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“…All the additive-containing perovskite films exhibit a stronger absorption than the reference perovskite film, indicating an enhanced light-harvesting ability of the corresponding perovskites and implying a better performance, with an increase in the generated photocurrent density values when incorporated in C-PSCs, while the highest absorbance is noted for the AI-based perovskite film. The increased absorbance of the films is an indication of high quality perovskite crystals, with increased coverage and uniformity [ 38 , 39 ]. The absorption band edge is nearly identical for all perovskites under study and similar values of Eg have been calculated, demonstrating that the addition of ammonium iodides does not affect the energy levels of the perovskite.…”

Section: Resultsmentioning

confidence: 99%

Exploring the Effect of Ammonium Iodide Salts Employed in Multication Perovskite Solar Cells with a Carbon Electrode

et al. 2021

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Perovskite solar cells that use carbon (C) as a replacement of the typical metal electrodes, which are most commonly employed, have received growing interest over the past years, owing to their low cost, ease of fabrication and high stability under ambient conditions. Even though Power Conversion Efficiencies (PCEs) have increased over the years, there is still room for improvement, in order to compete with metal-based devices, which exceed 25% efficiency. With the scope of increasing the PCE of Carbon based Perovskite Solar Cells (C-PSCs), in this work we have employed a series of ammonium iodides (ammonium iodide, ethylammonium iodide, tetrabutyl ammonium iodide, phenethylammonium iodide and 5-ammonium valeric acid iodide) as additives in the multiple cation-mixed halide perovskite precursor solution. This has led to a significant increase in the PCE of the corresponding devices, by having a positive impact on the photocurrent values obtained, which exhibited an increase exceeding 20%, from 19.8 mA/cm2, for the reference perovskite, to 24 mA/cm2, for the additive-based perovskite. At the same time, the ammonium iodide salts were used in a post-treatment method. By passivating the defects, which provide charge recombination centers, an improved performance of the C-PSCs has been achieved, with enhanced FF values reaching 59%, which is a promising result for C-PSCs, and Voc values up to 850 mV. By combining the results of these parallel investigations, C-PSCs of the triple mesoscopic structure with a PCE exceeding 10% have been achieved, while the in-depth investigation of the effects of ammonium iodides in this PSC structure provide a fruitful insight towards the optimum exploitation of interface and bulk engineering, for high efficiency and stable C-PSCs, with a structure that is favorable for large area applications.

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Effects of the additives n-propylammonium or n-butylammonium iodide on the performance of perovskite solar cells

Abstract: The presence of C3H7NH3I caused the perovskite films to grow with high coverage, thereby allowing the devices to display high performance.

Cited by 15 publications

References 54 publications

The effect of structural dimensionality on carrier mobility in lead-halide perovskites

The effect of structural dimensionality on carrier mobility in lead-halide perovskites

Low-temperature, simple and efficient preparation of perovskite solar cells using Lewis bases urea and thiourea as additives: stimulating large grain growth and providing a PCE up to 18.8%

Exploring the Effect of Ammonium Iodide Salts Employed in Multication Perovskite Solar Cells with a Carbon Electrode

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