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While the performance enhancement witnessed in the field of perovskite solar cells over the recent years has been impressive, it is now evident that further optimization beyond the existing literature would require detailed analysis of…

Applied Physics · Physics 2018-12-05 Sumanshu Agarwal , Pradeep R. Nair

Understanding and quantifying the main loss factors affecting the power conversion efficiency of perovskite solar cells are urgently needed. In this work, based on semiconductor physics, the expressions of bulk and surface recombination…

Mesoscale and Nanoscale Physics · Physics 2021-03-23 Ting Xu , Zi-Shuai Wang , Xuan-Hua Li , Wei E. I. Sha

The enhancement of the fill factor in the current generation of perovskite solar cells is the key for further efficiency improvement. Thus, methods to quantify the fill factor losses are urgently needed. A classical method to quantify Ohmic…

Applied Physics · Physics 2022-07-07 David Grabowski , Zhifa Liu , Gunnar Schöpe , Uwe Rau , Thomas Kirchartz

Fundamental electronic processes such as charge-carrier transport and recombination play a critical role in determining the efficiency of hybrid perovskite solar cells. The presence of mobile ions complicates the development of a clear…

Materials Science · Physics 2020-12-17 Sebastian Reichert , Katelyn Goetz , Christopher Wöpke , Yana Vaynzof , Carsten Deibel

In this perspective, we explore the insights into the device physics of perovskite solar cells gained from modeling and simulation of these devices. We discuss a range of factors that influence the modeling of perovskite solar cells,…

Applied Physics · Physics 2020-08-04 Nir Tessler , Yana Vaynzof

Organic-inorganic halide perovskite solar cells have enormous potential to impact the existing photovoltaic industry. As realizing a higher conversion efficiency of the solar cell is still the most crucial task, a great number of schemes…

Optics · Physics 2015-07-20 Dong-Lin Wang , Hui-Juan Cui , Guo-Jiao Hou , Zhen-Gang Zhu , Qing-Bo Yan , Gang Su

Despite the exciting recent research on perovskite based solar cells, the design space for further optimization and the practical limits of efficiency are not well known in the community. In this manuscript, we address these aspects through…

Mesoscale and Nanoscale Physics · Physics 2015-09-29 Sumanshu Agarwal , Pradeep R. Nair

Perovskite semiconductors have demonstrated outstanding external luminescence quantum yields, enabling high power conversion efficiencies (PCE). However, the precise conditions to advance to an efficiency regime above monocrystalline…

With the consideration of photon recycling effect, the efficiency limit of methylammonium lead iodide (CH3NH3PbI3) perovskite solar cells is predicted by a detailed balance model. To obtain convincing predictions, both AM 1.5 spectrum of…

Materials Science · Physics 2015-07-01 Wei E. I. Sha , Xingang Ren , Luzhou Chen , Wallace C. H. Choy

A theoretical approach to photoconversion efficiency modeling in perovskite p-i-n structures is developed. The results of this modeling compare favorably with the experiment and indicate that the surfaces of the perovskite solar cells (SCs)…

Mesoscale and Nanoscale Physics · Physics 2017-04-06 A. V. Sachenko , V. P. Kostylyov , A. V. Bobyl , V. M. Vlasyuk , I. O. Sokolovskyi , E. I. Terukov , M. Evstigneev

Pinpointing the origin of inefficiency can expedite the process of optimizing the efficiency of perovskite photovoltaics. However, it is challenging to discern and quantify the different loss pathways in a complete perovskite photovoltaic…

Applied Physics · Physics 2023-12-01 Minshen Lin , Xuehui Xu , Hong Tian , Yang Michael Yang , Wei E. I. Sha , Wenxing Zhong

All-perovskite tandem solar cells promise high photovoltaic performance at low cost. So far however, their efficiencies cannot compete with traditional inorganic multi-junction solar cells and they generally underperform in comparison to…

Photon recycling is required for a solar cell to achieve an open-circuit voltage ($V_{OC}$) and power conversion efficiency (PCE) approaching the Shockley-Queisser theoretical limit. In metal halide perovskite solar cells, the achievable…

Applied Physics · Physics 2019-07-17 Roberto Brenes , Madeleine Laitz , Joel Jean , Dane W. deQuilettes , Vladimir Bulovic

Perovskite photovoltaics has witnessed an unprecedented increase in power conversion efficiency over the last decade. The choice of transport layers, through which photo-generated electrons and holes are transported to the electrodes, is a…

Applied Physics · Physics 2020-07-10 Eline M. Hutter , Thomas Kirchartz , Bruno Ehrler , David Cahen , Elizabeth von Hauff

While perovskite solar cells (PSCs) are now reaching high power conversion efficiencies (PCEs), further performance improvement requires a fine management and an optimization of the light pathway and harvesting in the cells. These go…

Perovskite solar cells have reached power conversion efficiencies that rival those of established silicon photovoltaics. Nanotextures in perovskite solar cells scatter the incident light, thereby improving optical absorption. In addition,…

Drift-diffusion model is an indispensable modeling tool to understand the carrier dynamics (transport, recombination, and collection) and simulate practical-efficiency of solar cells (SCs) through taking into account various carrier…

Mesoscale and Nanoscale Physics · Physics 2017-04-20 Xingang Ren , Zishuai Wang , Wei E. I. Sha , Wallace C. H. Choy

This paper presents a multiscale approach to evaluate perovskite solar cell performance which determines material properties at the atomistic scale with first-principles calculations, and applies them in macro-scale device models. This work…

We report that device architecture engineering has a substantial impact on the reverse bias instability that has been reported as a critical issue in commercializing perovskite solar cells. We demonstrate breakdown voltages exceeding -15 V…

Deposition of perovskite thin films by antisolvent engineering is one of the most common methods employed in perovskite photovoltaics research. Herein, we report on a general method that allows the fabrication of highly efficient perovskite…

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