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Patil P, Maibam A, Sangale SS, Mann DS, Lee HJ, Krishnamurty S, Kwon SN, Na SI. Chemical Bridge-Mediated Heterojunction Electron Transport Layers Enable Efficient and Stable Perovskite Solar Cells. ACS Appl Mater Interfaces 2023. [PMID: 37289997 DOI: 10.1021/acsami.3c04852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Perovskite solar cells (PSCs) emerged as potential photovoltaic energy-generating devices developing in recent years because of their excellent photovoltaic properties and ease of processing. However, PSCs are still reporting efficiencies much lower than their theoretical limits owing to various losses caused by the charge transport layer and the perovskite. In this regard, herein, an interface engineering strategy using functional molecules and chemical bridges was applied to reduce the loss of the heterojunction electron transport layer. As a functional interface layer, ethylenediaminetetraacetic acid (EDTA) was introduced between PCBM and the ZnO layer, and as a result, EDTA simultaneously formed chemical bonds with PCBM and ZnO to serve as a chemical bridge connecting the two. DFT and chemical analyses revealed that EDTA can act as a chemical bridge between PCBM and ZnO, passivate defect sites, and improve charge transfer. Optoelectrical analysis proved that EDTA chemical bridge-mediated charge transfer (CBM-CT) provides more efficient interfacial charge transport by reducing trap-assisted recombination losses at ETL interfaces, thereby improving device performance. The PSC with EDTA chemical bridge-mediated heterojunction ETL exhibited a high PCE of 21.21%, almost no hysteresis, and excellent stability to both air and light.
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Affiliation(s)
- Pramila Patil
- Department of Flexible and Printable Electronics and LANL-CBNU Engineering Institute-Korea, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
| | - Ashakiran Maibam
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune 411 008, India
- School of Science, RMIT University, Melbourne, 3001 Victoria, Australia
- Academy of Scientific and Innovative Research, CSIR-Human Resource Development Centre (CSIR-HRDC) Campus, Postal Staff College area, Ghaziabad 201 002, Uttar Pradesh, India
| | - Sushil S Sangale
- Department of Flexible and Printable Electronics and LANL-CBNU Engineering Institute-Korea, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
| | - Dilpreet Singh Mann
- Department of Flexible and Printable Electronics and LANL-CBNU Engineering Institute-Korea, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
| | - Hyun-Jung Lee
- Department of Flexible and Printable Electronics and LANL-CBNU Engineering Institute-Korea, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
| | - Sailaja Krishnamurty
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune 411 008, India
- Academy of Scientific and Innovative Research, CSIR-Human Resource Development Centre (CSIR-HRDC) Campus, Postal Staff College area, Ghaziabad 201 002, Uttar Pradesh, India
| | - Sung-Nam Kwon
- Department of Flexible and Printable Electronics and LANL-CBNU Engineering Institute-Korea, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
| | - Seok-In Na
- Department of Flexible and Printable Electronics and LANL-CBNU Engineering Institute-Korea, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
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Patil P, Sangale SS, Kwon SN, Na SI. Innovative Approaches to Semi-Transparent Perovskite Solar Cells. Nanomaterials (Basel) 2023; 13:1084. [PMID: 36985978 PMCID: PMC10057987 DOI: 10.3390/nano13061084] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/12/2023] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
Perovskite solar cells (PSCs) are advancing rapidly and have reached a performance comparable to that of silicon solar cells. Recently, they have been expanding into a variety of applications based on the excellent photoelectric properties of perovskite. Semi-transparent PSCs (ST-PSCs) are one promising application that utilizes the tunable transmittance of perovskite photoactive layers, which can be used in tandem solar cells (TSC) and building-integrated photovoltaics (BIPV). However, the inverse relationship between light transmittance and efficiency is a challenge in the development of ST-PSCs. To overcome these challenges, numerous studies are underway, including those on band-gap tuning, high-performance charge transport layers and electrodes, and creating island-shaped microstructures. This review provides a general and concise summary of the innovative approaches in ST-PSCs, including advances in the perovskite photoactive layer, transparent electrodes, device structures and their applications in TSC and BIPV. Furthermore, the essential requirements and challenges to be addressed to realize ST-PSCs are discussed, and the prospects of ST-PSCs are presented.
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Affiliation(s)
| | | | - Sung-Nam Kwon
- Correspondence: (S.-N.K.); (S.-I.N.); Tel.: +82-63-270-4465 (S.-I.N.); Fax: +82-63-270-2341 (S.-I.N.)
| | - Seok-In Na
- Correspondence: (S.-N.K.); (S.-I.N.); Tel.: +82-63-270-4465 (S.-I.N.); Fax: +82-63-270-2341 (S.-I.N.)
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