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Inorganic cesium lead iodide (CsPbI$_3$) perovskite solar cells (PSCs) have attracted enormous attention due to their excellent thermal stability and optical bandgap (~1.73 eV), well-suited for tandem device applications. However, achieving…

Recently, replacing or mixing organic molecules in the hybrid halide perovskites with the inorganic Cs or Rb cations has been reported to increase the material stability with the comparable solar cell performance. In this work, we…

Materials Science · Physics 2018-09-19 Un-Gi Jong , Chol-Jun Yu , Yun-Sim Kim , Yun-Hyok Kye , Chol-Ho Kim

All-inorganic halide perovskites have attracted a great interest as a promising light harvester of perovskite solar cells due to their enhanced chemical stability. In this work we investigate the material properties of solid solutions…

Materials Science · Physics 2020-04-22 Chol-Jun Yu , Un-Hyok Ko , Suk-Gyong Hwang , Yun-Sim Kim , Un-Gi Jong , Yun-Hyok Kye , Chol-Hyok Ri

CH3NH3PbI3-based solar cells were characterized with electron beam-induced current (EBIC), and compared to CH3NH3PbI3-xClx ones. A spatial map of charge separation efficiency in working cells shows p-i-n structures for both thin film cells.…

Organic-inorganic halide perovskites are intrinsically unstable when exposed to moisture and/or light. Additionally, the presence of lead in many perovskites raises toxicity concerns. Herein is reported a thin film of BaZrS3, a lead-free…

The recent reaching of 20% of conversion efficiency by solar cells based on metal hybrid perovskites (MHP), e.g., the methylammonium (MA) lead iodide, CH3NH3PbI3 (MAPbI3), has excited the scientific community devoted to the photovoltaics…

Chemical Physics · Physics 2018-12-14 Diego Guedes-Sobrinho , Ivan Guilhon , Marcelo Marques , Lara K. Teles

Stability and toxicity issues with the hybrid lead iodide perovskite MAPbI$_3$ necessitate a hunt for potential alternatives. Here, we shed light on promising photovoltaic properties of gold mixed-valence halide perovskites…

Materials Science · Physics 2020-01-07 Jiban Kangsabanik , Supriti Ghorui , M. Aslam , Aftab Alam

Hybrid organic-inorganic perovskites, MAPbX3 (X= halogen), containing methylammonium (MA: CH3-NH3+) in the large voids conformed by the PbX6 octahedral network, are the active absorption materials in the new generation of solar cells.…

The wide band gap methylammonium lead bromide perovskite is promising for applications in tandem solar cells and light-emitting diodes. Despite its utility, there is only a limited understanding of its reproducibility and stability. Herein,…

We carried out simulative investigations on a non-toxic, lead-free perovskite solar cell (PSC), where Cs2AgBiBr6, P3HT, ZnO nanorod, and C were utilized as the absorber layer, hole transport layer, electron transport layer, and back…

Materials Science · Physics 2021-06-25 Intekhab Alam , Rahat Mollick , Md Ali Ashraf

In the previous decade, there has been a significant advancement in the performance of perovskite solar cells (PSCs), characterized by a notable increase in efficiency from 3.8% to 25%. Nonetheless, PSCs face many problems when we…

Hybrid organic-inorganic halide perovskites have emerged as a disruptive new class of materials, exhibiting optimum properties for a broad range of optoelectronic applications, most notably for photovoltaics. The first report of highly…

Materials Science · Physics 2018-08-21 Marina R. Filip , George Volonakis , Feliciano Giustino

CsPbI3 has recently received tremendous attention as a possible absorber of perovskite solar cells (PSCs). However, CsPbI3-based PSCs have yet to achieve the high performance of the hybrid PSCs. In this work, we performed a density…

Inorganic halide perovskite \ce{Cs(Rb)PbI3} has attracted significant research interest in the application of light-absorbing material of perovskite solar cells (PSCs). Although there have been extensive studies on structural and electronic…

Materials Science · Physics 2018-07-09 Un-Gi Jong , Chol-Jun Yu , Yun-Hyok Kye , Chol-Ho Kim , Son-Guk Ri , Yue Chen

Lead halide perovskite solar cells have recently emerged as a very promising photovoltaic technology due to their excellent power conversion efficiencies; however, the toxicity of lead and the poor stability of perovskite materials remain…

Materials Science · Physics 2017-03-10 Xiaolei Li , Xiangli Zhong , Yue Hu , Bochao Li , Yusong Sheng , Yang Zhang , Chao Weng , Ming Feng , Hongwei Han , Jinbin Wang

Hybrid Lead halide perovskites, despite having unique intrinsic properties with the possibility of flexible synthesis and device fabrication, still suffer from two fundamental issues, i.e. stability in external environment and toxicity due…

Materials Science · Physics 2018-05-16 Jiban Kangsabanik , Vipinraj Sugathan , Anuradha Yadav , Aswani Yella , Aftab Alam

Hybrid halide perovskites are currently under intense investigation due to their potential applications in optoelectronics and solar cells. Among them, MAPbI$_3$ where MA stands for the methylammonium cation, exhibits ideal properties for…

Materials Science · Physics 2017-07-10 A. Koliogiorgos , S. Baskoutas , I. Galanakis

Organic-inorganic hybrid perovskites such as methylammonium lead iodide (CH3NH3PbI3) are game-changing semiconductors for solar cells and light-emitting devices owing to their exceptionally long carrier lifetime and diffusion length.…

Perovskite-based solar cells are promising due to their rapidly improving efficiencies, but suffer from instability issues. Recently it has been claimed that one of the key contributors to the instability of perovskite solar cells is ion…

Applied Physics · Physics 2019-04-29 Boris Rivkin , Paul Fassl , Qing Sun , Alexander D. Taylor , Zhuoying Chen , Yana Vaynzof

In recent years, halide perovskite-based solar cells have received intensive attention, and demonstrated power conversion efficiency as high as 25.8%. With regard to the toxicity of Pb and the instability of organic elements, all inorganic…

Materials Science · Physics 2022-05-04 Dibyajyoti Saikia , Mahfooz Alam , Jayanta Bera , Atanu Betal , Appala Naidu Gandhi , Satyajit Sahu
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