Browsing by Author "e0436e62-7817-4798-b7e0-94121501d74e"

Now showing items 1-9 of 9

    • openAccess   Effect of Pristine Graphene on Methylammonium Lead Iodide Films and Implications on Solar Cell Performance 

      Redondo Obispo, Carlos Daniel; Serafini, Patricio; Climent-Pascual, Esteban; Ripolles, Teresa S.; Mora-Sero, Ivan; De Andrés, Alicia; Coya, Carmen American Chemical Society (2021)
      The relatively low stability of solar cells based on hybrid halide perovskites is the main issue to be solved for the implementation in real life of these extraordinary materials. Degradation is accelerated by temperature, ...

    • closedAccess   Enhanced efficiency and stability in Sn-based perovskite solar cells by trimethylsilyl halide surface passivation 

      Zhang, Zheng; Wang, Liang; Kumar Baranwal, Ajay; Sahamir, Shahrir Razey; Kapil, Gaurav; Sanehira, Yoshitaka; Kamarudin, Muhammad Akmal; Nishimura, Kohei; Ding, Chao; Liu, Dong; Li, Yusheng; Li, Hua; Chen, Mengmeng; Shen, Qing; Ripolles, Teresa S.; Bisquert, Juan; Hayase, Shuzi Elsevier (2022-05-13)
      Lead free tin perovskite solar cells (PKSCs) are the most suitable alternative candidate for conventional lead perovskite solar cells. However, the efficiency and the stability are insufficient, mainly because of the poor ...

    • closedAccess   Enhancing the Electronic Properties and Stability of High-EfficiencyTin-Lead Mixed Halide Perovskite Solar Cells via DopingEngineering 

      Sahamir, Shahrir Razey; Kamarudin, Muhammad Akmal; Ripolles, Teresa S.; Baranwal, Ajay Kumar; Kapil, Gaurav; Qing, Shen; Segawa, Hiroshi; Bisquert, Juan; Hayase, Shuzi American Chemical Society (2022-03-31)
      Overcoming Voc loss to increase the efficiency of perovskite solar cells (PSCs) has been aggressively studied. In this work, we introduce and compare rubidium iodide (RbI) and potassium iodide (KI) alkali metal halides ...

    • closedAccess   High-Efficiency Lead-Free Wide Band Gap Perovskite Solar Cells via Guanidinium Bromide Incorporation 

      Chen, Mengmeng; Kamarudin, Muhammad Akmal; Baranwal, Ajay Kumar; Kapil, Gaurav; Ripolles, Teresa S.; Nishimura, Kohei; Hirotani, Daisuke; Sahamir, Shahrir Razey; Zhang, Zheng; Ding, Chao; Sanehira, Yoshitaka; Bisquert, Juan; Shen, Qing; Hayase, Shuzi American Chemical Society (2021-09-27)
      Despite lead halide perovskite(top)/silicon(bottom) tandem solar cell achieving >29% efficiency, the toxicity of lead limits the adoption of perovskites in electronic devices. To solve this problem, tin perovskite has been ...

    • openAccess   Interface Engineering in Perovskite Solar Cells by Low Concentration of Phenylethyl Ammonium Iodide Solution in the Antisolvent Step 

      Ripolles, Teresa S.; Serafini, Patricio; Redondo Obispo, Carlos Daniel; Climent-Pascual, Esteban; Masi, Sofia; Mora-Sero, Ivan; Coya, Mª del Carmen Wiley (2021-12-03)
      In spite of the outstanding properties of metal halide perovskites, its polycrystallinenature induces a wide range of structural defects that results in charge losses thataffect thefinal device performance and stability. ...

    • closedAccess   Large Grain Growth and Energy Alignment Optimization by Diethylammonium Iodide Substitution at A Site in Lead-Free Tin Halide Perovskite Solar Cells 

      zhang, zheng; Baranwal, Ajay Kumar; Sahamir, Shahrir Razey; Kapil, Gaurav; Sanehira, Yoshitaka; Chen, Mengmeng; Nishimura, Kohei; Ding, Chao; Liu, Dong; Li, Hua; Li, Yusheng; Kamarudin, Muhammad Akmal; Shen, Qing; Ripolles, Teresa S.; Bisquert, Juan; Hayase, Shuzi Wiley (2021-10-13)
      Environment-friendly tin perovskite solar cells (T-PKSCs) are the most suitable alternative candidate for lead-free PKSCs. However, the photovoltaic performance of such T-PKSCs is far below those of lead-based perovskite ...

    • openAccess   Mechanisms of charge accumulation in the dark operation of perovskite solar cells 

      Ripolles, Teresa S.; Baranwal, Ajay K.; Nishinaka, Koji; Ogomi, Yuhei; Garcia-Belmonte, Germà; Hayase, Shuzi Royal Society of Chemistry (2016)
      In this work, a new current peak at forward bias in the dark current–voltage curves has been identified for standard mesoscopic perovskite solar cells. This characteristic peak appears only under some specific conditions, ...

    • openAccess   Perovskite Thin Single Crystal for a High Performance and Long Endurance Memristor 

      Fernandez-Guillen, Ismael; Aranda Alonso, Clara; Franco Betancur, Pablo; Vallés-Pelarda, Marta; Momblona, Cristina; Ripolles, Teresa S.; Abargues, Rafael; Boix, Pablo P Wiley (2024)
      Metal halide perovskites (MHPs) exhibit electronic and ionic characteristics suitable for memristors. However, polycrystalline thin film perovskite memristors often suffer from reliability issues due to grain boundaries, ...

    • openAccess   Tunable Open Circuit Voltage by Engineering Inorganic Cesium Lead Bromide/Iodide Perovskite Solar Cells 

      Ng, Chi Huey; Ripolles, Teresa S.; Hamada, Kengo; Teo, Siow Hwa; Lim, Hong Ngee; Bisquert, Juan; Hayase, Shuzi Nature Publishing Group (2018)
      Perovskite solar cells based on series of inorganic cesium lead bromide and iodide mixture, CsPbBr3-xI x , where x varies between 0, 0.1, 0.2, and 0.3 molar ratio were synthesized by two step-sequential deposition at ambient ...